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anatomy and physiology semester 1 > shoulder muscles (origin, insertion, function) > Flashcards

shoulder muscles (origin, insertion, function) Flashcards

1
Q

what is the origin and insertion of the trapezius

A

origin: vertebrae, occipital
insertion: clavicle, scapula

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2
Q

what is the function of the trapezius

A

stabilizes the scapula medially and extends head

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3
Q

what is the origin and insertion of the deltoid

A

origin: scapula, clavicle
insertion: humerus

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4
Q

what is the function of the deltoid

A

abduct and rotate the arm

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5
Q

what is the origin and insertion of the pectoralis major

A

origin: clavicle, sternum
insertion: humerus

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6
Q

what is the function of the pectoralis major

A

adduction and flexion of the arm

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7
Q

what is the origin and insertion of the latissimus dorsi

A

origin: vertebrae
insertion: humerus

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8
Q

what is the function of the latissimus dorsi

A

adducts and extends the arm

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9
Q

what is the origin and insertion of the pectoralis minor

A

origin: ribs
insertion: scapula

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10
Q

what is the function of the pectoralis minor

A

depress the scapula

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11
Q

what is the origin and insertion of the subscapularis

A

origin: scapula
insertion: humerus

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12
Q

what is the function of the subscapularis

A

rotates the arm medially and support the shoulder anteriorly

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13
Q

what is the origin and insertion of the serratus anterior

A

origin: ribs
insertion: scapula

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14
Q

what is the function of the serratus anterior

A

protects and stabilizes the scapula

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15
Q

what is the origin and insertion of the supraspinatus

A

origin: scapula
insertion: humerus

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16
Q

what is the function of the supraspinatus

A

abducts the arm and protects the shoulder superiorly

17
Q

what is the origin and insertion of the infraspinatus

A

origin: scapula
insertion: humerus

18
Q

what is the function of the infraspinatus

A

rotates the arm laterally, stabilizes the shoulder posteriorly

19
Q

what is the origin and insertion of the teres minor

A

origin: scapula
insertion: humerus

20
Q

what is the function of the teres minor

A

adduct and extend the arm

21
Q

what is the function of teres major

A

rotates the arm laterally, stabilizes the shoulder posteriorly

anatomy and physiology semester 1 (13 decks)

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