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Anatomy > muscles of pectoral gridle and arm > Flashcards

muscles of pectoral gridle and arm Flashcards

1
Q

what is the function of the trapezius?

A

elevated and retracts scapula

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2
Q

what is the function of the levator scapulae and its attachments?

A

elevates scapula and attaches to vertebrae

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2
Q

what is the function of the rhomboids and its attachments?

A

elevates and retracts scapula, attaches from medial border of scapula to vertebrae

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3
Q

what is the function of the pectoralis minor?

A

protracts and depresses scapula

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4
Q

what is the function of the serratus anterior?

A

same as pectoralis minor

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5
Q

what is the function of the pectoralis major?

A

flexes and adducts arm at the glenohumeral joint

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6
Q

why can the deltoid do so many movements?

A

not all muscles are contracting, anterior muscles flex and posterior muscles extend

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6
Q

what is the function of latissimus dorsi and its attachment?

A

extends and adducts arm, attaches to the humerus

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6
Q

what is the function of the deltoid?

A

abducts, flexes and extends arm

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7
Q

what is the function of the teres major?

A

extends and adducts arm

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8
Q

what is the function of the coracobrachialis?

A

flexes and adducts arm

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9
Q

what is the function of the rotator cuff?

A

provides support to the glenohumeral joint, stabalization

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10
Q

what is the function of the supraspinatus?

A

abducts arm

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10
Q

what is the function of the subscapularis?

A

medially rotates arm

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11
Q

what is the function of the infraspinatus?

A

laterally rotates arm

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12
Q

what is the function of the teres minor?

A

laterally rotates arm

13
Q

what is the function of the anterior muscles of arm?

A

flexors

14
Q

what is the function of the biceps brachii and its attachments?

A

supinates forearm and flexes arm, stabilizes shoulder and attaches to radial tuberosity, also short and long heads

15
Q

what is the function of brachialis?

A

strong flexor of the forearm and its deep

16
Q

what is the function of the brachioradialis and its attachments?

A

flexes the arm and attaches to styloid process of radius

17
Q

what is the function of the posterior muscles of the arm?

A

extensors

18
Q

what is the function of the triceps brachii and it attachments?

A

extension of the forearm, has 3 heads and attaches to the olecranon fossa

Anatomy (23 decks)

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