Muscular Anatomy Flashcards

Question 1

Q

Anatomy and Kinesiology

Supraspinatus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Supraspinatus
Action: GHJ Abduction and Stabilization
Origin: Supraspinous Fossa of the Scapula
Insertion: Greater Tubercle of the Humerus (Superior)
Innervation: Suprascapular: C5, C6

Question 2

Q

Anatomy and Kinesiology

Infraspinatus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Infraspinatus
Action: GHJ External Rotation and Stabilization
Origin: Infraspinous Fossa of the Scapula
Insertion: Greater Tubercle of the Humerus (Middle)
Innervation: Suprascapular: C5, C6

Question 3

Q

Anatomy and Kinesiology

Teres Minor
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Teres Minor
Action: GHJ External Rotation and Stabilization
Origin: Upper 2/3 of Lateral Scapular Border
Insertion: Greater Tubercle of the Humerus (Inferior)
Innervation: Axillary: C5, C6

Question 4

Q

Anatomy and Kinesiology

Subscapularis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Subscapularis
Action: GHJ Internal Rotation and Stabilization
Origin: Subscapular Fossa of the Scapula
Insertion: Lesser Tubercle of the Humerus
Innervation: (Upper & Lower) Subscapular: C5, C6

Question 5

Q

Anatomy and Kinesiology

Deltoid
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Deltoid
Action: GHJ Abduction, (Ant - Flex, IR, H.Add | Post - Ext, ER, H.Abd)
Origin: Lat 1/3 of Clavicle, Acromion, and Spine of Scapula
Insertion: Deltoid Tuberosity of Humerus
Innervation: Axillary: C5, C6

Question 6

Q

Anatomy and Kinesiology

Teres Major
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Teres Major
Action: GHJ Extension, Adduciton, & Internal Rotation
Origin: Lower 1/3 of Lateral Scapular Border
Insertion: Lesser Tubercle of the Humerus
Innervation: (Lower) Subscapular: C5-7

Question 7

Q

Anatomy and Kinesiology

Upper Trapezius
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Upper Trapezius
Action: Scapular Elevation & Upward Rotation, Cervical Extension, Ispilateral Sidebend, Contralateral Rotation
Origin: Nuchal Ligament C4-C7
Insertion: Lateral 1/3 of Clavicle
Innervation: CN XI & Anterior Rami of C3-4 (Cervical Plexus)

Question 8

Q

Anatomy and Kinesiology

Middle Trapezius
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Middle Trapezius
Action: Scapular Retraction
Origin: Spinous Process & Supraspinous Ligament of T1-4
Insertion: Superior Crest of Scapular Spine
Innervation: CN XI & Anterior Rami of C3-4 (Cervical Plexus)

Question 9

Q

Anatomy and Kinesiology

Lower Trapezius
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Lower Trapezius
Action: Scapular Upward Rotation and Inferomedial Translation
Origin: Spinous Process & Supraspinous Ligament of T5-T12
Insertion: Scapular Upper Medial Border and Medial Scapular Spine
Innervation: CN XI & Anterior Rami of C3-4 (Cervical Plexus)

Question 10

Q

Anatomy and Kinesiology

Latissimus Dorsi
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Latissimus Dorsi
Action: GHJ Extension, Adduction, & Internal Rotation
Origin: Thoracolumbar Fascia, Iliac Crest, T7-12, Ribs 9-12
Insertion: Intertubercular Groove of the Humerus
Innervation: Thoracodorsal: C6-8

Question 11

Q

Anatomy and Kinesiology

Levator Scapulae
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Levator Scapulae
Action: Scapular Elevation and Downward Rotation, Cervical Ext, Ipsi SB
Origin: C1-4 Transverse Process
Insertion: Medial Scapular Border and Spine
Innervation: Dorsal Scapular Nerve, Anterior Rami of C3-4 (Cervical Plexus)

Question 12

Q

Anatomy and Kinesiology

Rhomboid Minor
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Rhomboid Minor
Action: Scapular Retraction, Downward Rotation, and Elevation
Origin: C7-T1 Spinous Process
Insertion: Upper Medial Border of the Scapula
Innervation: Dorsal Scapular Nerve: C5

Question 13

Q

Anatomy and Kinesiology

Rhomboid Major
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Rhomboid Major
Action: Scapular Retraction, Downward Rotation, and Elevation
Origin: T2-T5 Spinous Process
Insertion: Lower Medial Border of the Scapula
Innervation: Dorsal Scapular Nerve: C5

Question 14

Q

Anatomy and Kinesiology

Pectoralis Major
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Pectoralis Major
Action: GHJ Adduction, Internal Rotation, and Horizontal Adduction
Origin: Medial Clavicle, Sternum, & Ribs 1-6
Insertion: Crest of the Greater Tubercle of the Humerus
Innervation: Lateral and Medial Pectoral Nerves: C5-T1

Question 15

Q

Anatomy and Kinesiology

Pectoralis Minor
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Pectoralis Minor
Action: Scapular Depression, Anterior Tilt, and Downward Rotation
Origin: Ribs 3-5
Insertion: Coracoid Process of the Scapula
Innervation: Lateral and Medial Pectoral Nerves: C5-T1

Question 16

Q

Anatomy and Kinesiology

Serratus Anterior
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Serratus Anterior
Action: Scapular Abduction, Upward Rotation, Posterior Tilt, & ER
Origin: Ribs 1-9
Insertion: Anterior Scapular Medial Border
Innervation: Long Thoracic: C5-7
“SALT - Seratus Anterior Long Thoracic”
“C5, 6, &7 raise your arms to Heaven”

Question 17

Q

Anatomy and Kinesiology

Biceps Brachii
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Biceps Brachii
Action: GHJ Flexion, Elbow Flexion & Supination
Origin: (long) Supraglenoid Tubercle, (short) Coracoid Process
Insertion: Radial Tuberosity and Biceps Aponeurosis
Innervation: Musculocutaneous: C5, C6

Question 18

Q

Anatomy and Kinesiology

Triceps Brachii
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Triceps Brachii
Action: (long) GHJ Extension, Elbow Extension
Origin: Infraglenoid Tubercle of Scapula, Super and Inferior Posterior Humerus
Insertion: Olecranon Process of Ulna
Innervation: Radial: C7-T1

Question 19

Q

Anatomy and Kinesiology

Coracobrachialis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Coracobrachialis
Action: GHJ Adduction and Flexion
Origin: Coracoid Process of Scapula
Insertion: Medial Mid-humeral Shaft
Innervation: Musculocutaneous: C5-7

Question 20

Q

Anatomy and Kinesiology

Brachialis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Muscle
Action: Elbow Flexion
Origin: Distal Anterior Humerus
Insertion: Ulnar Tuberosity and Coronoid Process of Ulna
Innervation: Musculocutaneous: C5, C6, Radial Nerve: C7

Question 21

Q

Anatomy and Kinesiology

Brachioradialis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Brachioradialis
Action: Elbow Pronation & Flexion
Origin: Distal Lateral Humerus, Supercondylar Ridge
Insertion: Styloid Process of the Radius
Innervation: Radial: C5, C6

Question 22

Q

Anatomy and Kinesiology

Extensor Carpi Radialis Longus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Extensor Carpi Radialis Longus
Action: Wrist Extension and Slight Radial Deviation
Origin: Lateral Supercondylar Ridge
Insertion: Dorsal Base of 2nd Metacarpal
Innervation: Radial: C5-8

Question 23

Q

Anatomy and Kinesiology

Extensor Carpi Radialis Brevis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Extensor Carpi Radialis Brevis
Action: Wrist Extension and Slight Radial Deviation
Origin: Lateral Epicondyle of the Humerus
Insertion: Dorsal Base of 3rd Metacarpal
Innervation: Radial: C5, C6

Question 24

Q

Anatomy and Kinesiology

Extensor Digitorum
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Extensor Digitorum
Action: Wrist Extension & MCP Extension
Origin: Lateral Epicondyle
Insertion: Dorsal Digital Expansion 2-5
Innervation: Radial: C6, C8

Question 25

Q

Anatomy and Kinesiology

Extensor Carpi Ulnaris
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Extensor Carpi Ulnaris
Action: Wrist Extension & Ulnar Deviation
Origin: Lateral Epicondyle & Dorsal Ulna
Insertion: Base of 5th Metacarpal
Innervation: Radial: C7, C8

Question 26

Q

Anatomy and Kinesiology

Supinator
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Supinator
Action: Elbow Supination
Origin: Olecranon of Ulna, Radial Collateral & Anular Ligaments
Insertion: Radius
Innervation: Radial: C7, C8

Question 27

Q

Anatomy and Kinesiology

Pronator Teres
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Pronator Teres
Action: Elbow Pronation
Origin: Medial Epicondyle & Coronoid Process of the Ulna
Insertion: Lateral Radius
Innervation: Median: C6, C7

Question 28

Q

Anatomy and Kinesiology

Flexor Carpi Radialis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Flexor Carpi Radialis
Action: Wrist Flexion and Radial Deviation
Origin: Medial Epicondyle
Insertion: Base of 2nd Metacarpal
Innervation: Median: C6, C7

Question 29

Q

Anatomy and Kinesiology

Flexor Carpi Ulnaris
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Flexor Carpi Ulnaris
Action: Wrist Flexion & Ulnar Deviation
Origin: Medial Epicondyle & Olecranon of the Ulna
Insertion: Pisiform, Hook of Hamate, & Base of 5th Metacarpal
Innervation: Ulnar: C8, T1

Question 30

Q

Anatomy and Kinesiology

Flexor Digitorum Superficialis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Flexor Digitorum Superficialis
Action: Wrist, MCP, & PIP Flexion
Origin: Medial Epicondyle, Coronoid of Ulna, & Radius
Insertion: Middle Phalange 2-5
Innervation: Median: C8, T1

Question 31

Q

Anatomy and Kinesiology

Flexor Digitorum Profundus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Flexor Digitorum Profundus
Action: Wrist, MCP, PIP, & DIP Flexion
Origin: Proximal 2/3 Anterior Ulna
Insertion: Distal Phalange 2-5
Innervation: (2nd/3rd Digits) Median, (4th/5th Digits) Ulnar: C8, T1

Question 32

Q

Anatomy and Kinesiology

Pronator Quadratus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Pronator Quadratus
Action: Elbow Pronation
Origin: Distal 1/4th of Anterior Ulna
Insertion: Distal 1/4th of Anterior of Radius
Innervation: Median: C8, T1

Question 33

Q

Anatomy and Kinesiology

Abductor Pollicis Longus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Abductor Pollicis Longus
Action: 1st CMC Abduction & Wrist Radial Deviation
Origin: Posterior Radius & Ulna
Insertion: Base of 1st Metacarpal
Innervation: Radial: C7, C8

Question 34

Q

Anatomy and Kinesiology

Abductor Pollicis Brevis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Abductor Pollicis Brevis
Action: 1st CMC/MCP Abduction
Origin: Flexor Retinaculum, Trapezium, & Scaphoid Tubercle
Insertion: Base of 1st Proximal Phalanx
Innervation: Median C6-T1

Question 35

Q

Anatomy and Kinesiology

Extensor Pollicis Brevis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Extensor Pollicis Brevis
Action: 1st CMC/MCP Extension, Wrist Radial Deviation
Origin: Posterior Radius
Insertion: Base of 1st Proximal Phalanx
Innervation: Radial: C7, C8

Question 36

Q

Anatomy and Kinesiology

Extensor Pollicis Longus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Extensor Pollicis Longus
Action: 1st MCP/IP Extension, Wrist Extension and Abduction
Origin: Posterior Ulna
Insertion: Base of 1st Distal Phalanx
Innervation: Radial: C7, C8

Question 37

Q

Anatomy and Kinesiology

Flexor Pollicis Longus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Flexor Pollicis Longus
Action: 1st CMC/MCP/IP Flexion & Opposition
Origin: Anterior Radius
Insertion: Palmar Surface of 1st Distal Phalanx
Innervation: Median: C8, T1

Question 38

Q

Anatomy and Kinesiology

Flexor Pollicis Brevis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Flexor Pollicis Brevis
Action: 1st CMC/MCP Flexion & Opposition
Origin: Flexor Retinaculum, Trapezium, Trapezoid, Capitate
Insertion: Palmar Surface of 1st Proximal Phalanx
Innervation: Median: C6-T1, Ulnar: C8, T1

Question 39

Q

Anatomy and Kinesiology

Extensor Indicis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Extensor Indicis
Action: 2nd MCP/IP Extension
Origin: Posterior Ulna
Insertion: Posterior Digital Expansion of the 2nd
Innervation: Radial: C7, C8

Question 40

Q

Anatomy and Kinesiology

Extensor Digiti Minimi
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Extensor Digiti Minimi
Action: 5th MCP/IP Extension & Abduction
Origin: Lateral Epicondyle
Insertion: Dorsal Digital Expansion of the 5th
Innervation: Radial: C7, C8

Question 41

Q

Anatomy and Kinesiology

Adductor Pollicis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Adductor Pollicis
Action: 1st CMC/MCP Adduction
Origin: Capitate, 2nd & 3rd Metacarpals
Insertion: Base of 1st Proxmal Phalanx
Innervation: Ulnar: C8, T1

Question 42

Q

Anatomy and Kinesiology

Opponens Pollicis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Opponens Pollicis
Action: 1st CMC/MCP Opposition
Origin: Flexor Retinaculum & Tubercle of the Trapezium
Insertion: 1st Metacarpal
Innervation: Median: C6-T1

Question 43

Q

Anatomy and Kinesiology

Lumbricals of the Hand
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Lumbricals of the Hand
Action: 2-5 MCP Flexion & 2-5 IP Extension
Origin: Flexor Digitorum Profundus Tendons
Insertion: Extensor Aponeurosis
Innervation: (2nd/3rd Digit) Median: C8, T1; (4th/5th Digit) Ulnar C8, T1

Question 44

Q

Anatomy and Kinesiology

Palmar Interossei
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Palmar Interossei
Action: MCP Adduction & Flexion, IP Extension
Origin: Base of the 1st, 2nd, 4th, and 5th Metacarpals
Insertion: Base of associated Proximal Phalanx and Extensor Hood
Innervation: Ulnar: C8, T1

Question 45

Q

Anatomy and Kinesiology

Dorsal Interossei
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Dorsal Interossei
Action: MCP Abduction & Flexion, IP Extension
Origin: All Metacarpals
Insertion: Base of associated Proximal Phalanx and Extensor Hood
Innervation: Ulnar: C8, T1

Question 46

Q

Anatomy and Kinesiology

Abductor Digiti Minimi
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Abductor Digiti Minimi
Action: 5th MCP Abduction
Origin: Pisiform and Flexor Carpi Ulnaris Tendon
Insertion: Bast of 5th proximal phalanx
Innervation: Ulnar: C8, T1

Question 47

Q

Anatomy and Kinesiology

Gluteus Maximus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Gluteus Maximus
Action: Hip Extension, Abduction, External Rotation
Origin: Iliac Crest, Sacral Edge, and Sacral Ligaments
Insertion: Gluteal Tuberosity and Iliotibial Tract
Innervation: Inferior Gluteal: L5-S2

Question 48

Q

Anatomy and Kinesiology

Gluteus Medius
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Gluteus Medius
Action: Hip Abduction, Flexion/Extension, IR/ER
Origin: Gluteal Surface of Ilium
Insertion: Lateral Aspect of the Greater Trochanter
Innervation: Superior Gluteal: L4-S1

Question 49

Q

Anatomy and Kinesiology

Gluteus Minimus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Gluteus Minimus
Action: Hip Abduction, Flexion, Internal Rotation
Origin: Gluteal Surface of Ilium
Insertion: Anterior Aspect of the Greater Trochanter
Innervation: Superior Gluteal: L4-S1

Question 50

Q

Anatomy and Kinesiology

Tensor Fasciae Latae
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Tensor Fasciae Latae
Action: Hip Abduction, Flexion, Internal Rotation
Origin: Posterior to ASIS
Insertion: Iliotibial Tract
Innervation: Superior Gluteal: L4-S1

Question 51

Q

Anatomy and Kinesiology

Piriformis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Piriformis
Action: Hip External Rotation & Abduction (When in Flexion)
Origin: Anterior Sacrum
Insertion: Superior Greater Trochanter
Innervation: Sacral Plexus S1, S2

Question 52

Q

Anatomy and Kinesiology

Quadratus Femoris
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Quadratus Femoris
Action: Hip External Rotation
Origin: Lateral Ischial Tuberosity
Insertion: Intertrochanteric Crest
Innervation: Sacral Plexus L4-S1

Question 53

Q

Anatomy and Kinesiology

Obturator Internus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Obturator Internus
Action: Hip External Rotation
Origin: Posterior Surface of the Obturator Membrane
Insertion: Medial Surface of Greater Trochanter
Innervation: L5-S2

Question 54

Q

Anatomy and Kinesiology

Obturator Externus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Obturator Externus
Action: Hip External Rotation
Origin: Anterior Obturator Membrane
Insertion: Trochanteric Fossa of the Femur
Innervation: Obturator: L3, L4

Question 55

Q

Anatomy and Kinesiology

Gemellus Superior
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Gemellus Superior
Action: Hip Exernal Rotation
Origin: Ischial Spine
Insertion: Medial Greater Trochanter
Innervation: Sacral Plexus: L5-S2

Question 56

Q

Anatomy and Kinesiology

Gemellus Inferior
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Gemellus Inferior
Action: Hip External Rotation
Origin: Ischial Tuberosity
Insertion: Medial Greater Trochanter
Innervation: Sacral Plexus: L4-S1

Question 57

Q

Anatomy and Kinesiology

Iliacus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Iliacus
Action: Hip Flexion & Anterior Pelvic Tilt
Origin: Iliac Fossa
Insertion: Lesser Trochanter
Innervation: Femoral: L2, L3

Question 58

Q

Anatomy and Kinesiology

Psoas Major
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Psoas Major
Action: Hip Flexion & Lateral Rotation, Pelvic Anterior Tilt, Local Segmental Lumbar Stabilization
Origin: Bodies, Discs, and Transverse Processes from T12-L5
Insertion: Lesser Trochanter
Innervation: Lumbar Plexus: L1-3

Question 59

Q

Anatomy and Kinesiology

Rectus Femoris
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Rectus Femoris
Action: Knee Extension & Hip Flexion
Origin: Anterior Inferior Iliac Spine
Insertion: Tibial Tuberosity Via Patella
Innervation: Femoral: L2-4

Question 60

Q

Anatomy and Kinesiology

Vastus Medialis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Vastus Medialis
Action: Knee Extension
Origin: Medial Linea Aspera
Insertion: Tibial Tuberosity via the Patella
Innervation: Femoral: L2-4

Question 61

Q

Anatomy and Kinesiology

Vastus Intermedius
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Vastus Intermedius
Action: Knee Extension
Origin: Anterior and Lateral Femoral Shaft
Insertion: Tibial Tuberosity via the Patella
Innervation: Femoral: L2-4

Question 62

Q

Anatomy and Kinesiology

Vastus Lateralis
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Vastus Lateralis
Action: Knee Extension
Origin: Lateral Linea Aspera
Insertion: Tibial Tuberosity via the Patella
Innervation: Femoral: L2-4

Question 63

Q

Anatomy and Kinesiology

Biceps Femoris
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Biceps Femoris
Action: Knee Flexion & Lateral Rotation, Hip Extension, Posterior Pelvic Tilt
Origin: Long - Ischial Tuberosity, Short - Lateral Linea Aspera
Insertion: Fibular Head
Innervation: Sciatic: L5-S2

Question 64

Q

Anatomy and Kinesiology

Semitendinosus
Action?
Origin?
Insertion?
Innervation?

Muscular Anatomy

Answer

A

Semitendinosus
Action: Knee Flexion & Internal Rotaiton, Hip Extension, Posterior Pelvic Tilt
Origin: Ischial Tuberosity
Insertion: Pes Anserinus of Proximal Medial Tibia
Innervation: Sciatic: L5-S2

Answer 65

A

Semimembranosus
Action: Knee Flexion & Internal Rotation, Hip Extension, Posterior Pelvic Tilt
Origin: Ischial Tuberosity
Insertion: Posterior Medial Tibial Condyle
Innervation: Sciatic: L5, S1

Answer 66

A

Pectineus
Action: Hip Adduction, Internal Rotation, and Flexion
Origin: Superior Pubic Ramus
Insertion: Pectineal Line of Femur
Innervation: Femoral & Obturator: L2, L3

Answer 67

A

Adductor Brevis
Action: Hip Adduction, Internal Rotation, and Flexion
Origin: Inferior Pubic Ramus
Insertion: Medial Lip of Linea Aspera
Innervation: Obturator: L2-4

Answer 68

A

Adductor Longus
Action: Hip Adduction, Internal Rotation, and Flexion
Origin: Pubic Tubercle
Insertion: Medial Linea Aspera
Innervation: Obturator: L2, L3

Answer 69

A

Adductor Magnus
Action: Hip Adduction, Internal Rotation, Extension, Flexion
Origin: Inferior Ramus of Pubis/Ischium, and Ischial Tuberosity
Insertion: Adductor Tubercle
Innervation: Obturator & Sciatic: L3, L4

Answer 70

A

Gracillis
Action: Hip Adduction & Internal Rotation, Knee Flexion & Internal Rotation
Origin: Inferior Pubic Ramus
Insertion: Proximal Medial Tibia (Pes Anserinus)
Innervation: Obturator: L2-4

Answer 71

A

Sartorius
Action: Hip Flexion, External Rotation, & Abduction; Knee Flexion & Internal Rotation
Origin: Anterior Superior Iliac Spine
Insertion: Proximal Medial Tibia (Pes Anserinus)
Innervation: Femoral: L2, L3

Answer 72

A

Gastrocnemius
Action: Ankle Plantarflexion & Knee Flexion
Origin: Posterior Femoral Condyles
Insertion: Calcaneus
Innervation: Tibial: S1, S2

Answer 73

A

Soleus
Action: Ankle Plantarflexion
Origin: Posterior Tibia and Head of Fibula
Insertion: Calcaneus
Innervation: Tibial: S1, S2

Answer 74

A

Popliteus
Action: Knee Internal Rotation and Flexion
Origin: Lateral Condyle of the Femur
Insertion: Posterior Proximal Tibia
Innervation: Tibial: L5, S1

Answer 75

A

Fibularis (Peroneus) Longus
Action: Ankle Eversion & Plantarflexion
Origin: Proximal 2/3rds of the Lateral Fibula
Insertion: Base of the 1st Metatarsal
Innervation: Superficial Fibular (Peroneal): L5, S1

Answer 76

A

Fibularis (Peroneus) Brevis
Action: Ankle Eversion & Plantarflexion
Origin: Distal 2/3rds of the Lateral Fibula
Insertion: Tuberosity of the 5th Metacarpal
Innervation: Superficial (Peroneal) Fibular: L5-S2

Answer 77

A

Tibialis Anterior
Action: Ankle Dorsiflexion and Inversion
Origin: Lateral Surface of Tibia and Interosseous Membrane
Insertion: Medial Cuneiform and Base of the 1st Metatarsal
Innervation: Deep Fibular: L4, L5

Answer 78

A

Extensor Digitorum Longus (Foot)
Action: 2-5 MTP & IP Extension, Ankle Dorsiflexion & Eversion
Origin: Anterior Tibia and Interosseous Membrane
Insertion: Middle and Distal Phalanges 2-5
Innervation: Fibular: L4-S1

Answer 79

A

Extensor Hallucis Longus
Action: 1st MTP & IP Extnesion, Ankle Dorsiflexion & Inversion
Origin: Anterior Fibula & Interosseous Membrane
Insertion: Distal Phalanx of the 1st Toe
Innervation: Deep Fibular: L5, S1

Answer 80

A

Tibialis Posterior
Action: Ankle Inversion & Plantarflexion
Origin: Posterior Tibia & Fibula, Interosseous Membrane
Insertion: Navicular Tuberosity, All Cuneiforms, Cuboid, Bases of Metatarsals 2-4
Innervation: Tibial: L5, S1

Answer 81

A

Flexor Digitorum Longus (Foot)
Action: 2-5 MTP & IP Flexion
Origin: Posterior Tibia
Insertion: Distal Phalanges 2-5
Innervation: Tibial: L5, S1

Answer 82

A

Flexor Hallucis Longus
Action: 1st MTP & IP Flexion
Origin: Middle Posterior Fibula
Insertion: Distal Phalanx of the 1st Toe
Innervation: Tibial: L5-S2

Answer 83

A

Flexor Hallucis Brevis
Action: 1st MTP Flexion
Origin: Plantar Surface of Cuboid and Latearl Cuneiform
Insertion: Base of 1st Proximal Phalanx
Innervation: Tibial: L4-S1

Answer 84

A

Extensor Digitorum Brevis (Foot)
Action: 2-4 MTP/IP Extension
Origin: Dorsal Calcaneus
Insertion: 2-4 Toes via Extensor Digitorum Longus Tendons
Innervation: Deep Fibular: L5, S1

Answer 85

A

Flexor Digitorum Brevis (Foot)
Action: PIP Flexion 2-5
Origin: Calcaneus
Insertion: Middle Phalanges 2-5
Innervation: Tibial: L5, S1

Answer 86

A

Abductor Hallucis
Action: 1st MTP Abduction
Origin: Calcaneus
Insertion: 1st Proximal Phalanx
Innervation: Tibial: L4-S1

Answer 87

A

Extensor Hallucis Brevis
Action: 1st MTP Extension
Origin: Dorsal Calcaneus
Insertion: Proximal 1st Phalanx
Innervation: Deep Fibular: L5, S1

Answer 88

A

Adductor Hallucis
Action: 1st MTP Adduction
Origin: 2-4 Metatarsals, 3-5 MTP Joints
Insertion: 1st Proximal Phalanx
Innervation: Tibial: S1, S2

Answer 89

A

Quadratus Plantae
Action: MTP 2-5 Flexion
Origin: Calcaneus
Insertion: Flexor Digitorum Longus Tendon
Innervation: Tibial: S1, S2

Answer 90

A

Splenius Capitis & Cervicis
Action: Cervical Extension, Ipsilateral Side-bend and Rotation
Origin: (Capitis) Ligamentum Nuchae C7-T4, (Cervicis) Spinous Process T3-6
Insertion: (Capitis) Superior Nuchal Line, (Cervicis) Transverse Process C1-3
Innervation: (Capitis) Spinal: C2-3, (Cervicis) Spinal 3-7

Answer 91

A

Rectus Capitis Posterior Major/Minor
Action: Cervical Extension & Ipsilateral Side-bend
Origin: (Major) Spinous Process of C2, (Minor) Posterior Arch C1
Insertion: Inferior Nuchal Line
Innervation: Suboccipital: C1

Answer 92

A

Obliquus Capitis Superior/Inferior
*Action: (Superior) Extension & Ipsi Side-bend, (Inferior) Ipsi Rotation *
Origin: (Superior) Transverse Process of C1, (Inferior) Spinous Process of C2
Insertion: (Superior) Inferior Nuchal Line, (Inferior) Transverse Process of C1
Innervation: Suboccipital: C1

Answer 93

A

Spinalis Capitis/Cervicis/Thoracis
Action: Spinal Extension, Ipsilateral Side-bend
Origin: (Capitis/Cervicis) Spinous Process C7-T1, (Thoracis) Spinous Process T11-L2
Insertion: (Capitis) Occipital, (Cervicis) Spinous Process C2-4, (Thoracis) Spinous Process T2-8
Innervation: Spinal: Posterior Rami, Lateral Branch

Answer 94

A

Longissimus Capitis/Cervicis/Thoracis
Action: Spinal Extension and Ipsilateral Side-bend
Origin: Transverse Processes (Capitis) C4-T5, (Cervicis) T1-5, (Thoracis) L1-5
Insertion: (Capitis) Mastoid, Transverse Processes (Cervicis) C2-6, (Thoracis) T1-12
Innervation: Spinal: Posterior Ramus, Lateral Branch

Answer 95

A

Iliocostalis Cervicis/Thoracis/Lumborum
Action: Spinal Extension & Ipsilateral Side-bend
Origin: (Cervicis) Ribs 3-6, (Thoracis) Ribs 7-12, (Lumborum) Iliac Crest
Insertion: Transverse Processes (Cervicis) C4-6, (Thoracis) Ribs 4-6 & C7, (Lumborum) Ribs 5-12 & L1-4
Innervation: Spinal: Posterior Ramus, Lateral Branch

Answer 96

A

Multifidus
Action: Spinal Extension & Contralateral Rotation
Origin: Sacrum & Transverse Process of Lumbar to Cervical
Insertion: Spinous Processes of C2-L5 (Span 2-4 Segments)
Innervation: Spinal: Posterior Ramus, Medial Branch

Answer 97

A

Quadratus Lumborum
Action: Ipsilateral Side-bend
Origin: Iliac Crest
Insertion: Transverse Processes of L1-4 & Rib 12
Innervation: Lumbar Plexus: L1-3

Answer 98

A

Sternocleidomastoid
Action: Cervical Flexion, Ipsilateral Side-bend, Contralateral Rotation
Origin: Sternum & Middle Clavicle
Insertion: Mastoid Process & Superior Nuchal Line
Innervation: Acessory Nerve (CN11), Cervical Plexus C2, C3

Answer 99

A

Longus Capitis
Action: Cervical Flexion, Slight Ipsilateral Rotation & Side-bend
Origin: Transverse Processes of C3-6
Insertion: Basilar Occipital Bone
Innervation: Cervical Plexus: C1-3

Answer 100

A

Longus Colli
Action: Cervical Flexion, Slight Ispilateral Side-bend & Rotation
Origin: Transverse Processes C3-5, Vertebral Bodies C5-T3
Insertion: Anterior Transverse Processes and Bodies, C1-6
Innervation: Spinal: Anterior Ramus C2-6

Answer 101

A

Anterior Scalene
Action: Cervical Ipsilateral Side-bend and Flexion, Rib Elevation
Origin: Transverse Processes C3-6
Insertion: 1st Rib
Innervation: Spinal: Anterior Ramus, C4-6

Answer 102

A

Middle Scalene
Action: Cervical Ipsilateral Side-bend & Flexion, Rib Elevation
Origin: Transverse Processes C1-7
Insertion: 1st Rib
Innervation: Spinal: Anterior Ramus, C3-8

Answer 103

A

Posterior Scalene
Action: Cervical Ipsilateral Side-bend & Flexion, Rib Elevation
Origin: Transverse Processes C5-7
Insertion: 2nd Rib
Innervation: Spinal: Anterior Rami C6-8

Answer 104

A

Rectus Abdominis
Action: Trunk Flexion, Posterior Pelvic Tilt
Origin: Pubic Crest & Pubic Symphysis
Insertion: Cartilage of Ribs 5-7 & Xiphoid Process
Innervation: Intercostal: T7-11, Subcostal: T12

Answer 105

A

External Oblique
Action: Trunk Flexion, Ipsilateral Side Bend, Contralateral Rotation
Origin: Ribs 5-12
Insertion: Iliac Crest & Linea Alba
Innervation: Intercostal: T7-11, Subcostal: T12, Iliohypogastric: L1

Answer 106

A

Internal Oblique
Action: Trunk Flexion, Ipsilateral Side-bend & Rotation
Origin: Iliac Crest, Thoracolumbar Fascia
Insertion: Ribs 10-12, Lineal Alba, Pubic Crest
Innervation: Intercostal: T7-11, Subcostal: T12, Iliohypogastric: L1, Ilioinguinal: L1

Answer 107

A

Transversus Abdominis
Action: Compresses Abdominal Viscera, Trunk Rotation
Origin: Ribs 7-12, Thoracolumbar Fascia, Iliac Crest
Insertion: Linea Alva, Internal Oblique, Pubic Crest
Innervation: Intercostal: T7-11, Subcostal: T12, Iliohypogastric: L1, Ilioinguinal: L1

Answer 108

A

Diaphragm
Action: Depress Costal Cartilages, Inspiration
Origin: Xiphoid Process, Costal Cartilages & Ribs 7-12, L1-3
Insertion: Central Tendon of the Diaphragm
Innervation: Phrenic: C3-5, Intercostal: T6-11

Answer 109

A

Masseter
Action: Mandibular Elevation & Protrusion
Origin: Zygomatic Arch
Insertion: Ramus of Mandible
Innervation: Trigeminal: CN 5

Answer 110

A

Temporalis
Action: Mandipular Elevation & Retrusion
Origin: Temporal Fossa
Insertion: Coronoid Process of Mandible
Innervation: Trigeminal: CN 5

Answer 111

A

Medial Pterygoid
Action: Mandibular Elevation, Protrusion, & Contralateral Excursion
Origin: Sphenoid Bone
Insertion: Medial Ramus of Mandible
Innervation: Trigeminal: CN 5

Answer 112

A

Lateral Pterygoid
Action: Mandibular Protrusion & Contralateral Excursion
Origin: Sphenoid Bone
Insertion: Articular Disc and Capsule of TMJ, Neck of Mandible
Innervation: Trigeminal: CN 5

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Muscular Anatomy Flashcards

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