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Fundamentals Block 2 > upper limb-scapular region > Flashcards

upper limb-scapular region Flashcards

1
Q

where do the nerves that supply the upper limb arise from?

A

anterior rami of spinal nerves from cord segments C5-T1

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2
Q

what artery crosses the first rib

A

subclavian artery

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3
Q

where does the axillary artery cross

A

the lower border of teres major muscle

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4
Q

what artery divides at the cubital fossa

A

brachial artery divides into radial and ulnar arteries

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5
Q

what are the upper limb pulse points

A

-axillary pulse (armpit)
-radial pulse in distal forearm
-ulnar pulse in distal forearm
-brachial pulse in cubital fossa
-brachial pulse in mid-arm
-radial pulse in anatomical snuff box

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6
Q

what sides are basilic and cephalic veins on?

A

basilic- medial
cephalic- lateral

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7
Q

what vein is the site of venipuncture?

A

median cubital vein

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8
Q

supraspinatus nerve and action?

A

suprascapular nerve
initiates abduction

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9
Q

infraspinatus nerve and action?

A

suprascapular nerve
laterally rotate humerus

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10
Q

subscapularis nerve and action?

A

upper and lower subscapular nerves
medially rotate humerus

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11
Q

teres minor nerve and action?

A

axillary nerve
laterally rotate humerus

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12
Q

teres major nerve and action?

A

lower subscapular nerve
medially rotate and extension

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13
Q

what muscles stabilize the shoulder joint in order to prevent dislocation of head of the humerus from the glenoid fossa?

A

supraspinatus
infraspinatus
subscapularis
teres minor

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14
Q

what nerve innervates the deltoid muscle?

A

axillary

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15
Q

what are the actions of the anterior, middle, and posterior fibers of the deltoid muscle?

A

anterior: flex/medial rotation
middle: abduction
posterior: extend/lateral rotation

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16
Q

what vessels are present in the deltoid region?

A

-thoracoacromial trunk
-circumflex scapular artery
-anterior and posterior humeral circumflex artery
-suprascapular artery
-deep brachial artery

17
Q

where does the axillary artery begin and end?

A

-begins at the lower border of 1st rib (continuation of subclavian artery)
-ends at the lower border of the teres major muscle and becomes the brachial artery

18
Q

what muscles divides the axillary artery into 3 parts

A

pectoralis minor

19
Q

what artery is the 1st division of the axillary artery?

A

superior thoracic artery

20
Q

what arteries make up the 2nd division of the axillary artery?

A

thoracoacromial trunk
lateral thoracic artery

21
Q

what arteries make up the 3rd division of the axillary artery?

A

subscapular artery
anterior humeral circumflex artery
posterior humeral circumflex artery

22
Q

where does the brachial artery begin and end?

A

-begins at the lower border of teres major (continuation of the axillary artery)
-ends in front of cubital fossa

23
Q

what are the branches of the brachial artery in the flexor compartment?

A

superior and inferior collateral arteries

24
Q

what are the branches of the brachial artery in the extensor compartment?

A

profunda brachii artery
middle collateral artery
radial collateral artery

25
Q

what are the terminal branches of the brachial artery?

A

radial artery
ulnar artery

26
Q

biceps brachii action

A

-flex at shoulder and elbow
-most powerful supinator at the elbow

27
Q

coracobrachialis muscle action

A

-flex at shoulder only
-adduct arm

28
Q

brachialis muscle action

A

most powerful flexor at the elbow

29
Q

lateral cord of the brachial plexus

A

musculocutaneous nerve

30
Q

what nerve innervates the triceps brachii

A

radial nerve

31
Q

posterior cord of the brachial plexus

A

radial nerve

32
Q

what artery supplies the triceps brachii

A

profunda brachii artery

33
Q

what are the boundaries of the quadrangular space?

A

medial-long head of the triceps brachii
lateral-humerus
superior- teres minor tendon
inferior-teres major tendon

34
Q

what artery and nerve run through the quadrangular space?

A

axillary nerve
posterior humeral circumflex artery

35
Q

what are the boundaries of the triangular space?

A

lateral- long head triceps brachii
superior- teres minor tendon
inferior- teres major tendon

36
Q

what artery runs through the triangular space?

A

circumflex scapular artery

37
Q

what are the boundaries of the triangular interval?

A

medial- long head of triceps brachii
lateral- lateral head of triceps brachii
superior- teres major tendon

38
Q

what nerve and artery run through the triangular interval?

A

radial nerve
profunda brachii artery

Fundamentals Block 2 (10 decks)

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