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A&P 1 Lab > Muscle Practical > Flashcards

Muscle Practical Flashcards

1
Q

Origin, Insertion, and function: External Oblique

A

Origin, inferior 8 ribs.

Insertion, Linea Alba, pubic tubercle, iliac crest.

Compresses abdominal contents.

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2
Q

Origin, Insertion, and function: Internal Oblique

A

Origin, lingual ligament, iliac crest, thoracolumbar.

Insertion, cartilage of last 4 ribs, Linea alba.

Compresses abdomen.

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2
Q

Origin, Insertion, and function: Transversus Abdominis

A

Origin, iliac crest, inguinal ligament, thoracolumbar fascia, ribs 7-12.

Insertion, xiphoid process, Linea alba, crest of pubis.

Compress Abdomen and force exhalation.

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3
Q

Origin, Insertion, and function: Rectus Abdominis

A

Origin, pubic crest and pubic symphysis.

Insertion, ribs 5,6,& 7, xiphoid process.

Flexion and lateral rotation of vertebral column, compress abdomen.

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4
Q

Origin, Insertion, and function: Pectoralis Minor

A

Origin, ribs 3,4, & 5.

Insertion, coracoid process of scapula.

Downward and forward rotation of scapula, forced inhalation.

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5
Q

Origin, Insertion, and function: Pectoralis Major

A

Origin, clavicle, coastal cartilage of 6 ribs, sternum.

Insertion, inter tubercular groove and greater tubercle of humerus.

Flexion, addiction, medial rotation and horizontal Flexion of humerus.

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6
Q

Origin, Insertion, and function: serrated ventralis

A

Called serrated anterior in humans.

Origin, first 9 ribs.

Insertion, medial border of scapula.

Protraction and lateral rotation of scapula, abduction of arm.

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7
Q

Origin, Insertion, and function: Anterior Scalene

A

Called scalenus anterior in humans.

Origin, transverse processes of 3-6 cervical vertebrae.

Insertion, ribs 1 & 2.

Elevation of ribs during inspiration, unilateral action. Flexion of neck, bilateral action.

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8
Q

Origin, Insertion, and function: Middle Scalene

A

Called scalenus medius.

Origin, transverse process of 2-7 cervical vertebrae.

Insertion, ribs 1 & 2.

Elevation of ribs during inspiration, unilateral action, Flexion and rotation of cervical spine. Bilateral action Flexion of neck.

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9
Q

Origin, Insertion, and function: Posterior Scalene

A

Called scalenus posterior in humans.

Origin, transverse process of cervical vertebrae.

Insertion, ribs 1 & 2.

Elevation of ribs during inspiration, unilateral action. Flexion and rotation of cervical spine, bilateral action. Flexion of neck.

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10
Q

Origin, Insertion, and function: sternomastoid and cleidomastoid

A

Called sternocleidomastoid in humans.

Origin, anterior surface of manubrium:clavicle.

Insertion, mastoid process, superior nuchal line.

Bilateral: neck Flexion. Unilateral Flexion and rotation of neck.

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12
Q

Origin, Insertion, and function: Sternohyoid

A

Origin, manubrium and clavicle.

Insertion: Hyoid

Depress hyoid bone

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13
Q

Origin, Insertion, and function: Platysma

A

Origin: Fascia of chest and deltoid

Insertion: Mandible

Depresses mandible: pulls lower lip back and down

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14
Q

Origin, Insertion, and function: Mylohyoid

A

Origin: Mylohyoid line of mandible

Insertion: Body of hyoid bone and median raphe

Elevates the floor of the mouth and tongue and depresses the jaw when the hyoid is fixed.

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15
Q

Origin, Insertion, and function: Digastric

A

Origin: Anterior belly, mandible, temporal bone

Insertion: Intermediate tendon on hyoid bone

Elevate hyoid bone

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16
Q

Origin, Insertion, and function: Biceps Femoris

A

(hamstring)

Origin: ischial tuberosity, linea aspera and distal femur

Insertion: Head of fibula and lateral condyle of tibia

Extends thigh, laterally rotates leg, flexes knee

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17
Q

Origin, Insertion, and function: Semitendinosus

A

Origin: Ishial tuberosity

Insertion: Medial tibial shaft

Extends thigh, flexes knee, medially rotates leg

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18
Q

Origin, Insertion, and function: Semimembranosus

A

Origin: Ishial tuberosity

Insertion: Medial condyle of tibia

Extends thigh, flexes knee, medially rotates leg

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19
Q

Origin, Insertion, and function: Iliopsoas

A

Origin: iliac fossa, lateral sacrum, lumbar vertebrae

Insertion: Lesser trochanter of femur

Flex trunk on thigh, flew thigh, lateral flexion of vertebral column

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20
Q

Origin, Insertion, and function: Pectineus

A

Origin: Pubis

Insertion: Proximal end of femur

Adducts, flexes and medially rotates thigh.

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21
Q

Origin, Insertion, and function: Sartorius

A

Origin: Anterior Superior iliac spine

Insertion: Medial aspect of proximal tibia

Flexes, adducts and lateral rotation of thigh, flexes knee

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22
Q

Origin, Insertion, and function: Adductor longus

A

Origin: Longus: Pubis

Insertion: Longus, linea aspera

Adduct, medially rotate and flew thigh

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23
Q

Origin, Insertion, and function: Adductor magnus and brevis (human)

A

Origin: Magnus: ishical and pubic rami and ishial tuberosity; Brevis: pubis

Insertion: Magnus: gluteal tuberosity and linea aspera; Brevis: linea aspera

Adduct, medially rotate and flew thigh

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24
Q

Origin, Insertion, and function: Gracilis

A

Origin: Inferior ramus and body of pubis

Insertion: Medial surface of tibia

Adducts thigh, flexes and medially rotates leg

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25
Q

Origin, Insertion, and function: Rectus femoris

A

Origin: Anterior inferior iliac spine and superior margin of acetabulum

Insertion: Tibial tuberosity and patella

Extends knee and flexes thigh.

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26
Q

Origin, Insertion, and function: Vastus lateralis

A

Origin: Greater trochanter, intertrochanteric line and linea aspera

Insertion: Tibial turberosity and patella

Extends and stabilizes knee.

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27
Q

Origin, Insertion, and function: Vastus medialis

A

Origin: Linea aspera and intertrochanteric line

Insertion: Tibial tuberosity and patella

Extends and stabilizes knee.

28
Q

Origin, Insertion, and function: Tensor fasciae latae

A

Origin: iliac crest and anterior superior iliac spine

Insertion: Iliotibial tract

Flexes, abducts and medially rotates thigh

29
Q

Iliotibial Tract:

A

Thickened lateral art of fasciae latae

30
Q

Origin, Insertion, and function: Deltoid

A

Origin: calvicle, acromion of scapula, spine of scapula

Insertion: Deltoid tuberosity of humerus

Abduction, flexion, extension and rotation of humerus

31
Q

Origin, Insertion, and function:
Clavodeltoid
Acromiodeltoid
Spinodeltoid

A

Deltoid in human

Origin: calvicle, acromion of scapula, spine of scapula

Insertion: Deltoid tuberosity of humerus

Abduction, flexion, extension and rotation of humerus

32
Q

Origin, Insertion, and function: Trapezius

A

Origin: Occipital bone, spinous process of thoracic vertebrae

Insertion: Clavicle and scapula

Elevate, rotate, depress, and retract scapula.
Lateral flexion, extension, and hyperextension of neck.

33
Q

Origin, Insertion, and function:
Clavotrapezius
Acromiotrapezius
Spinotrapezius

A

Traezius in humans.

Origin: Occipital bone, spinous process of thoracic vertebrae

Insertion: Clavicle and scapula

Elevate, rotate, depress, and retract scapula.
Lateral flexion, extension, and hyperextension of neck.

34
Q

Origin, Insertion, and function: Levator scapulae ventralis

A

Only levator scapulae in humans

Origin: transverse process of C1-C4

Insertion:Medial border of scapula

Elevates and adducts scapula; lateral flexion of neck

35
Q

Origin, Insertion, and function: Supraspinatus

A

Origin: Supraspinous fossa of scapula

Insertion: Greater tubercle of humerus

Abduction of humerus, holds humeral head in glenoid.

36
Q

Origin, Insertion, and function: Infraspinatus

A

Origin: Infraspinous fossa of scapula

Insertion: Greater tubercle of humerus

Extension and lateral rotation of humerus. Hold humeral head in glenoid.

37
Q

Origin, Insertion, and function: Latissimus Doris

A

Origin: Lumbodorsal fossa, inferior angle of the scapula

Insertion: Intertubercular groove of humerus

Extends and adducts humerus; rotation of humerus medially

38
Q

Origin, Insertion, and function:Rhomboids major/minor

A

Origin: Spinous process of C7 and T1-T5

Insertion: Medial border of scapula

Medial retraction and elevates scapula

39
Q

Origin, Insertion, and function: Rhomboid Capitis

A

Muscle ONLY in cats!

Origin: Spinous process of C7 and T1-T5

Insertion: Medial border of scapula

Medial retraction and elevates scapula

40
Q

Origin, Insertion, and function: Splenius

A

Origin: Spinous processes of C7-T6

Insertion: Mastoid process of occipital bone and transverse process of C2-C4

Extends neck; lateral flexion of neck

41
Q

Origin, Insertion, and function: Teres Major

A

Origin: Posterior inferior angle of scapula

Insertion: Intertubercular groove of humerus

Extends and hyperextends humerus; adducts humerus; medial rotation of humerus

42
Q

Origin, Insertion, and function: Subscapularis

A

Origin: subscapular fossa

Insertion: Lesser tubercle of humerus

Medial rotation of humerus

43
Q

Origin, Insertion, and function: Gluteus medius

A

Origin: ilium

Insertion: greater trochanter of femur

Abducts and medially rotates thigh

44
Q

Origin, Insertion, and function: Gluteus Maximus

A

Origin: ilium, sacrum and coccyx

Insertion: Gluteal tuberosity of femur and iliotibial tract

Thigh extension and lateral rotation

45
Q

Origin, Insertion, and function: Caudofemoralis

A

ONLY in CATS!

46
Q

Origin, Insertion, and function: triceps brachii (long head)

A

Origin: inferior margin of glenoid cavity

Insertion: olecranon process of ulna

Forearm extensor

47
Q

Origin, Insertion, and function: triceps brachii (medial head)

A

Origin: posterior humerus

Insertion: olecranon process of ulna

Forearm extensor

48
Q

Origin, Insertion, and function: triceps brachii (lateral head)

A

Origin: posterior humerus

Insertion: olecranon process of ulna

Forearm extensor

49
Q

Origin, Insertion, and function: Biceps brachii

A

Origin: short head, coracoid process; long head, supraglenoid tubercle

Insertion: radial tuberosity

Flexion of elbow; supiation of forearm

50
Q

Origin, Insertion, and function: Pronator Teres

A

Origin: Medial epicondyle; coronoid process of ulna

Insertion: Mid-shaft of radius

Pronate arm; elbox flexor

51
Q

Origin, Insertion, and function: Brachioradialis

A

Origin: Distal end of humerus

Insertion: styloid process of radius

Forearm flexion

52
Q

Origin, Insertion, and function: Flexor carpi ulnaris

A

Origin: Medial epicondyle of humerus; olecranon process of ulna

Insertion: 5th metacarpal. pisiform and hamate bones

Flexor of wrist, adducts hand

53
Q

Origin, Insertion, and function: Palmaris longus

A

Origini: medial epicondyle of humerus

Insertion: Skin and fascia of palm

Flexes wrist; tenses skin and fascia of palm

54
Q

Origin, Insertion, and function: Flexor carpi radialis

A

Origin: medial epicondyle of humerus

Insertion: Base of 2nd metacarpal

Flexes wrist and abducts hand.

55
Q

Origin, Insertion, and function:Extensor carpi ulnaris

A

Origin: Lateral epicondyle of humerus; posterior border of ulna

Insertion: 5th metacarpal

Extends and adducts wrist

56
Q

Origin, Insertion, and function: Extensor carpi radialis

A

Origin: lateral supracondylar ridhe of the humerus, lateral epicondyle of humerus

Insertion: Dorsal surface of the base of the second metacarpal cone

Extends and abducts wrist

57
Q

Origin, Insertion, and function: Extensor digitorum communis

A

Origin: Lateral epicondyle of humerus and deep antebrachial fasciae

Insertion: 2nd to 5th digits

Abduction of index, ring, and little fingers; extension and abduction of wrist

58
Q

Origin, Insertion, and function: Extensor digitorum lateralis

A

Origin: Distal portion of humerus

Insertion: 2nd - 5th digits

Assists with action of extensor digitorum communis

59
Q

Origin, Insertion, and function: Gastrocnemius

A

Origin: Medial and lateral condyles of femur

Insertion: Calcaneus via calcaneal tendon

Plantar flexion of foot’ flexes knee

60
Q

Origin, Insertion, and function: Soleus

A

Origin: proximal portion of tibia and fibula

Insertion: Calcaneus via calcaneal tendon

Plantar flexion

61
Q

Origin, Insertion, and function: Tibialis Anterior

A

Origin: Lateral condyle; upper 2/3 of tibia

Insertion: Inferior surface of 1st cuneiform and metatarsal 1

Dorsiflexion of foot

62
Q

Origin, Insertion, and function: Extensor digitorum Longus

A

Origin: Lateral condyle of tibia; proximal portion of fibula

Insertion: Middle and distal phalanges of toes II-V

Toe extension; orsiflexion of foot

63
Q

Origin, Insertion, and function: Peroneus Longus

A

Origin: Lateral condyle of tibia and top half of fibula

Insertion: 1st metatarsal

Plantar flexion, eversion of foot.

64
Q

Origin, Insertion, and function: flexor digitorum longus

A

Origin: Posterior tibia

Insertion: Phalanges II-V

Flexion of phalanges II-V

65
Q

Origin, Insertion, and function: Plantaris

A

Origin: Proximal femur

Insertion: Calcaneus

Fleion of the knee joint; flexion of the foot

A&P 1 Lab (1 decks)

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