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Gross Anatomy > Brachium (Outline 15) > Flashcards

Brachium (Outline 15) Flashcards

1
Q

Tip on left or right arm?

A

Whatever the side of radius on is that side of the arm (radius is outside of the ulna)

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2
Q

Distinguish betwee radius and ulna?

A

The proximal end of ulna is larger than the radius

The distal end of ulna is smaller than the radius

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2
Q

Name for brown color part? Function

A

Trochlear notch

articulate with the trochlea of hummerus

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3
Q

Name for Blue Color. FunctioN?

A

Coronoid process of ulna

Fit with coronoid fossa of humerus when elbow flexed

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4
Q

Name for the pink color. Function?

A

Head of the radius

articulate surface with capitulum of humerus

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5
Q

Name for Green COlor. Function?

A

Radial Tuberosity of Ulna

Insertion of bicep tendons

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6
Q

Name for yellow color. Function?

A

Sytloid process

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7
Q

Name for #13 (black pen). Function?

A

Tuberosity of ulna

Brachialis

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8
Q

Name for the pencil color (right corner). Function?

A

Radial notch

articulation surface between head of radius and ulna

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9
Q

Name for #8 lower right corner. Function?

A

dorsal tubercle of radius

pully for extensor pollicis longus

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10
Q

How is brachium muscle divided? By what?

A

Anterior/Posterior Compartment

Deep fascia

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11
Q

What action does anterior brachium do? Posterior?

A

Flexion

Extension

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12
Q

What muscles are in anterior compartment?

A

Biceps

Brachialis

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13
Q

Muscles in posterior department?

A

3 head of triceps

anconeus

articularis cubiti

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14
Q

Blood supply for anterior brachium? What is it equivalent in leg?

A

Brachial A

femoral A

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15
Q

BS for post brachium? Equivalent to Leg?

A

brachial profunda A

femoral profunda A

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16
Q

NS for anterior brachium?Posterior brachium

A

musculocutaneous

Radial N

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17
Q

What division is musculocutaneous N in? radial N?

A

Anterior

Posterior

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18
Q

Origin of bicep brachii

A

Short head: coracoid process of scapula

Long head: Supraglenoid of scapula

19
Q

Insertion of bicep brachiii

A

Tendons: radial tuberosity of radius

Bicep aponeurosis: deep fascia on ulna

20
Q

Action of bicep brachii

A

Both: Supination of forearm/ flexion of elbow

Short head: flexion of shoulder

Long head: abduction of externally rotated arm

21
Q

BS for bicep brachii? NS?

A

brachial artery

Musculocutaneous

22
Q

OIANB of coracobrachialis

A

Tip of coracoid process of scapula

middle 1/3 of medial humerus

flexion/ adduction of shoulder

Musculocutaneous

Brachial

23
Q

OIANB of brachilis

A

Lower half of anterior humerus

Ulnar Tuberosity/ Coranoid Process of Ulna

Flexion of Elbow

Musculocutaneous

Brachial

24
Q

Origin of tricep brachii

A

Long head: infraglenoid tubercle of scapula

Lateral head: posterior humerus above spiral groove

Medial: below spiral groove

25
Q

IANB of triceps brachii

A

Olecranon process of ulna

Extension of elbow/ Extension of shoulder (long head)

radial N

brachial profunda

26
Q

What ligament that hold tendon of long head bicep? What part of joint it is in?

A

transverse ligament

glenohumeral joint

27
Q

Why brachialis cant supine/propine the forearm?

A

because it insert on ulnar, which is fixed

28
Q

When the arm is in propination and you do bicep curl, what happen?

A

the forearm will automatically supine

29
Q

What is the workhorse in anterior brachium? Post brachium?

A

Brachialis

Medial head of triceps brachii

30
Q

articularis cubiti function?

A

pull the elbow joint capsule out of the way for medial head of triceps brachii

31
Q

What are branches of brachial a?

A

Brachial profunda

superior ulnar collateral

inferior ulnar collateral

Nutrient A

32
Q

Contents of brachil profunda?

A

anterior or radial collateral

posterior or middle collateral

33
Q

Where does the brachial profunda terminate?

A

at the elbow

34
Q

Where does superior ulnar collateral travel? inferior ulnar collateral

A

posterior of elbow

anterior of elbow

35
Q

What is the order of muscle of anterior brachii that musculocutaneous innervate?

A

Coracobrachial/ Biceps/ Brachialis

36
Q

Lateral antebrachial cut

A

the merge nerves of biceps brachiii and brachialis

37
Q

Where does the lateral antebrachial cutaneous turn into?

A

laterl cutaneous nerve of forearm

38
Q

How does the median N travel relative to brachial artery?

A

Upper part of brachium it travel laterally and lower part of brachium it travel medially

39
Q

Does median N travel post or anterior compartment?

A

anterior compartment

40
Q

How does ulnar N travel relatively to brachial a?

A

upper brachium it travel in anterior brachium then posterior brachium as it pass by the brachial a

41
Q

Does ulnar N travel medial or lateral relative to brachial artery?

A

medially

42
Q

Where does the radial n travel? and with what artery? Pathway of its travel?

A

in spiral groove with brachial profunda artery

posterior(before elbow) -> lateral epicondyle(anterior) -> posterior(deep branch) and anterbrachial (superficial branch)

43
Q

what are cutaneous branches of radial in brachium?

A

lower lateral cut

post brachial

post antebrachia

44
Q

Where does the radial N travel anterior compartment? What does it innervate?

A

lateral epicondyle

brachioradialis/ ECRL (extensor carpi radialis longus)

45
Q

What cutaneous nerve of radial N travel antebrachial?

A

superficial branch

46
Q

What cutaneous N of radial N that travel posteriorly after elbow?

A

deep branch

Gross Anatomy (28 decks)

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