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Anatomical Science Exam 3 > Scapular region, superficial chest, intrinsic shoulder muscles, shoulder joint > Flashcards

Scapular region, superficial chest, intrinsic shoulder muscles, shoulder joint Flashcards

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Biology 101 flashcards
1
Q

which skeleton is the pelvis girdle a part of?

A

appendicular

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2
Q

What bones make up the shoulder complex?

A

humorous
scapula
clavicle
posterior thoracic wall

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3
Q

what is the function of the clavicle?

A

-supports anterior shoulder
-only bone attaching upper limb to axial skeleton

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4
Q

Why is the clavicle susceptible to injury?

A

little protection
S shape

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5
Q

the glenohumeral joint allows which motions?

A

flexion/extension
abduction/adduction
medial/lateral
circumduction

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6
Q

What is one thing that acts to help stabilize the glenohumeral joint?

A

the rotator cuff muscles

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7
Q

what kind of movement occurs with the scapulothoracic joint?

A

elevation/depression
protraction/retraction
up/down rotation

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8
Q

what are the extrinsic shoulder joint muscles?

A

trapezius
levator scapulae
rhomboids
latissimus dorsi
pec maj + min
serratus anterior

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9
Q

what are the intrinsic muscles of the shoulder?

A

deltoid
teres major
rotator cuff muscles

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10
Q

Where does the trapezius attach?

A

C and T spines
Scapular spine and clavicle

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11
Q

what is the action of the trapezius?

A

scapular retraction and rotation

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12
Q

what is the action of the rhomboids?

A

scapular retraction

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13
Q

what is the action of the levator scapulae?

A

scapular elevation

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14
Q

What is the attachment of pec major?

A

clavicle and sternum
bicipital groove

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15
Q

what is the action of pec major?

A

humeral adduction
humeral internal rotation

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16
Q

where does the pec minor attach?

A

coracoid process

17
Q

where does the serratus anterior attach?

A

medial boarder of scapula and ribs

18
Q

what is the action of serratus anterior?

A

scapular protraction

19
Q

what is the innervation of serratus anterior?

A

Long thoracic nerve

20
Q

what can happen if there is serratus anterior paralysis?

A

scapular winging
long thoracic nerve damage?

21
Q

what is the action of the deltoid?

A

abduction, flexion/extension

21
Q

where does the deltoid attach?

A

scapular spine, clavicle
deltoid tuberosity

22
Q

what are the rotator cuff muscles?

A

supraspinatus
infraspinatus
teres MINOR
subscapularis

23
Q

how can you spot a glenohumeral dislocation?

A

-loss of deltoid contour
-injured arm appears longer
-humeral head dislocates inferiorly but presents anteriorly due to pec major pulling it

Anatomical Science Exam 3 (12 decks)

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