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BIO 141 Lab > Muscles Origins and Insertions > Flashcards

Muscles Origins and Insertions Flashcards

1
Q

Trapezius

A

Origin: Occipital Bone

Insertion: Clavicle

Action: Rotates scapula

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2
Q

Rhomboideus major

A

Action: Raises scaupula

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3
Q

Levator Scapulae

A

Action: Elevates scapula

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4
Q

Serratus anterior

A

Origin: outer surfaces of the upper ribs

Insertion: Ventral surface of scapula

Action: Pulls scapula anteriorly and downward

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5
Q

Pectoralis Minor

A

Origin: Sternal ends of the upper rib

Insertion: Coracoid process of scapula

Action: raises ribs

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6
Q

Coracobrachialis

A

Origin: Coracoid process of scapula

Insertion: Shaft of humerus

Action: Flexes and adducts the arm

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7
Q

Pectoralis Major

A

Origin: Clavicle

Insertion: Intertubercular groove of humerus

Action: rotates arm medially

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8
Q

Latissimus Dorsi

A

Origin: lower ribs

Insertion: Intertubercular groove of humerus

Action: rotates the arm medially

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9
Q

Deltoid

A

Origin: Clavicle

Insertion: Deltoid tuberosity of the humerus

Action: flexes arm

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10
Q

Biceps Brachii

A

Origin: Coracoid Process of scapula

Insertion: Radial tuberosity of radius

Action: Flexes forearm at elbow

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11
Q

Brachialis

A

Origin: Anterior shaft of humerus

Insertion: Coronoid Process of ulna

Action: Flexes forearm at elbow

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12
Q

Brachioradialis

A

Origin: Distal lateral end of the humerus

Insertion: Lateral surface of radius above styloid process

Action: Flexes forearm at elbow

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13
Q

Triceps Brachiii

A

Origin: Tubercule below glenoid cavity

Insertion: Olecranon process of ulna

Action: Extends forearm at elbow

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14
Q

Supinator

A

Origin: Lateral epicondyle of humerus

Insertion: Lateral surface of radius

Action: Rotates forearm laterally

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15
Q

Pronator Quadratus

A

Origin: Anterior distal end of ulna

Insertion: Anterior distal end of radius

Action: Rotates forearm medially

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16
Q

Orbicularis Occuli

A

Origin: Maxillary

Insertion: Skin around eye

Action: Closes eyes as in blinking

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17
Q

Orbicularis Oris

A

Origin: Muscles near the mouth

Insertion: Skin of central lip

Action: protudes lips as for kissing

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18
Q

Buccinator

A

Origin: Outer surfaces of maxilla

Insertion: Orbicularis oris

Action: Compresses cheeks inward as when blowing air

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19
Q

Zygomaticus

A

Origin: Zygomatic Bone

Insertion: Orbicularis Oris

Action: Raises corner of mouth as when smiling

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20
Q

Playsma

A

Origin: Fascia in upper chest

Insertion: Lower border of mandible

Action: Draws angle of mouth downward as in pouting

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21
Q

Masseter

A

Origin: Lower border of zygomatic arch

Insertion: Lateral surface of mandible

Action: Elevates mandible

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22
Q

Temporalis

A

Origin: Temporal bone

Insertion: Interior rams of mandible

Action: Elevates mandible

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23
Q

Medial pterygoid

A

Action: Moves mandible from side to side

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24
Q

Lateral pyerygoid

A

Action: Depresses and protracts mandible

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25
Sternocleidomastoid
Origin: Anterior surface of sternum Insertion: Mastoid process of temporal bone Action: elevates sternum
26
Splenius capitis
Origin: Spinous processes of lower cervical vertebrae Insertion: Occipital bone Action: Extends neck
27
Semispinalis capitis
Origin: Processes of lower cervical vertebrae Insertion: Occipital bone Action: Rotates head
28
External Oblique
Origin: Outer surfaces of lower ribs Insertion: linea alba Action: Tenses abdominal wall
29
Internal Oblique
Origin: Crest of Ilium Insertion: Linea alba Action: Tenses abdominal wall
30
Transversus Abdominis
Origin: Processes of lumbar vertebrae Insertion: Linea alba Action: tenses abdominal wall
31
Rectus Abdominis
Origin: Symphysis Pubis Insertion: Xiphoid Process of Sternum Action: Tenses abdominal wall
32
Epicranius
Origin: Occipital bone Insertion: Skin and muscles around eye Action: Raises eyebrows as when suprised
33
Levator Ani
Origin: Pubic bone Insertion: Coccyx Action: Supports pelvic viscera
34
Coccygeus
Origin: Ischial spine Insertion: Sacrum Action: Supports pelvic viscera
35
Bilbospongiosus
Origin: Centeral tendon Insertion: (male) fascia of penis (female) clitoris Action: (male) Assists emptying of urethra (female) Constricts vagina`
36
Ischiocavernosus
Origin: Ischial tuberosity Insertion: Pubic arch Action: Assists function of bulbospongiosus
37
Sphincter urethrae
Opens and closes urethra
38
Psoas major
Origin: Lumbar intervertebral discs Insertion: Lesser trochanter of femur Action: Flexes thigh
39
Iliacus
Origin: Iliac fossa of Ilium Insertion: Lesser trochanter of femur Action: Flexes Thigh
40
Gluteus Maximus
Origin: Sacrum Insertion: Posterior surface of femur Action: Extends thigh at hip
41
Gluteus Medius
Origin: Lateral surface of ilium Insertion: Greater trochanter of femur Action: Rotates thigh medially
42
Gluteus Minimus
Origin: Lateral surface of ilium Insertion: Greater trochanter of femur Action: rotates thigh medially
43
Tensor fasciae latae
Origin: Anterior Illiac Crest Insertion: Iliotibial Band Action: Rotates thigh medially
44
Adductor longus
Action: Flexes thigh
45
Adductor Magnus
Action: Extends thigh
46
Gracilis
Origin: Lower edge of pubic symphasis Insertion: Medial surface of tibia Action: Flexes leg at the knee
47
Biceps femoris
Origin: Ischial tuberosity Insertion: Head of fibula Action: Extends thigh
48
Semitendinosus
Origin: Ischial tuberosity Insertion: Medial surface of tibia Action: Extends thigh
49
Semimembranosus
Origin: Ischial tuberosity Insertion: Medial condyle of tibia Action: Rotates thigh laterally
50
Sartorius
Origin: Anterior superior illiac spine Insertion: Medial surface of tibia Action: Rotates thigh laterally
51
Rectus femoris
Origin: Spine of Ilium Insertion: Patella Action: Extends leg at knee
52
Vastus Lateralis
Origin: Posterior surface of femur Insertion: Patella Action: Extends leg at knee
53
Vastas Medialis
Origin: Medial surface of femur Insertion: Patella Action: Extends leg at knee
54
Vastus Intermedius
Origin: Anterior surface of femur Insertion: Patella Action: Extends leg at knee
55
Tibialis Anterior
Origin: Lateral surface of tibia Insertion: first metatarsal Action: Dorsiflexion
56
Extensor Digitorum Longus
Action: Extension of toes
57
Gastroscnemuis
Origin: Lateral and medial condyles of femur Insertion: Posterior surface of calcaneus Action: Flexion of leg at knee
58
Soleus
Origin: Head and shaft of fibula Insertion: Posterior surface of calcaneus Action: Plantar flexion of foot
59
Flexor Digitorum Longus
Action: Flexion of four lateral toes
60
Fibularis Longus
Origin: Lateral condyle of tibia Insertion: Tarsal and metatarsal bones Action: Eversion of foot

BIO 141 Lab (10 decks)

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