Muscular System- Action, Origin, Inserton Flashcards Preview

Anatomy > Muscular System- Action, Origin, Inserton > Flashcards

Flashcards in Muscular System- Action, Origin, Inserton Deck (22)
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1
Q

Masseter

A

Action: elevates mandible

2
Q

Temporalis

A

Action: elevates mandible

3
Q

Sternocleidomastoid

A

Action: flexes and laterally rotates head
Origin: manubrium of sternum and medial clavicle
Insertion: mastoid process

4
Q

Scalenes

A

Action: elevates first two ribs for inspiration

5
Q

Levator scapulae

A

Action: elevates scapula

6
Q

Splenius capitis

A

Action: extends/hyperextends neck

7
Q

Trapezius

A

Action: extends and laterally flexes head

8
Q

Latissimus dorsi

A

Action: arm extension, arm adductor, medially rotates arm

9
Q

Rhomboideus major/ Rhomboideus minor

A

Action: minor and major combine to retract and fixate scapula

10
Q

Erector spinae

A

Action: extends vertebrae. Posture

11
Q

Pectorales major

A

Action: flexes and medically rotates arm

12
Q

Rectus abdominis

A

Action: flexes vertebrae and compresses abdomen

13
Q

Four parts of the Rotator Cuff

A

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

14
Q

Supraspinatus

A

Action: abducts arm
Origin: supraspinous fossa of scapula
Insertion: greatest tubercle of humerus

15
Q

Infraspinatus

A

Action: laterally rotates arm
Origin: infraspinous fossa of scapula
Insertion: greater tubercle of humerus

16
Q

Teres minor

A

Action: laterally rotates arm
Origin: lateral border of scapula
Insertion: greater tubercle of numerous

17
Q

Subscapularis

A

Action: medically rotates arm
Origin: subscapular fossa of scapula
Insertion: lesser tubercle of humerus

18
Q

Triceps brachii

A

Action: extends forearm
Origin: scapula and humerus
Insertion: olecranon process

19
Q

Biceps brachii

A

Action: flexes and supinate forearm
Origin: Coracoid process of scapula and humerus
Insertion: radial tuberosity

20
Q

Brachialis

A

Action: flexes forearm

21
Q

Coracobracjialis

A

Action: flexes and adducts the arm
Origin: coracoid process of scapula
Insertion: shaft of humerus

22
Q

Pronator teres

A

Action: pronates forearm
Origin: medial epicondyle of humerus
Insertion: radius shaft