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Gross Anatomy > Lab 8: Cubital Fossa; Anterior Antebrachium > Flashcards

Lab 8: Cubital Fossa; Anterior Antebrachium Flashcards

1
Q

How is the antebrachium divided?

A

Anterior/Posterior , SUperficial/Deep

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2
Q

BS of Anterior Antebrachium? NS?

A

Superficial: Ulnar A

Deep: Interosseous A

Median N

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3
Q

What is the exception for anterior anterbrachium NS?

A

Ulnar N innervates FCU and half of FDP

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4
Q

BS/ NS for posterior antebrachium?

A

Superficial: Radial A

Deep: Post Interosseous A

Radial N

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5
Q

Superficial Anterior Antebrachium Mucles?

A

FCU/FCR

PL/PT

FDS

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6
Q

Deep Anterior Antebrachium Muscles?

A

PQ

FDP

FPL

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7
Q

Musculatenous Pathway?

A

Passes through cubital fossa and continue down the antebrachium as LAC

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8
Q

Median N pathway in antebrachium

A

Passes through cubital fossa and travels between two heads of pronator teres and between FDP and FDS. Then emerge anteriorly just proximal to wrist and enter hands betweed FDP and flexor retinaculum

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9
Q

Pathway of Ulnar N?

A

Goes around the medial epicondyle and travels between 2 heads of FCU to supply it and half of FDP

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10
Q

Pathway of Radial N Proper?

A

Split at cubital fossa into deep and superficial. Deep pierces supinator and innervate post antebrachium. Superficial travels under brachioradialis and innervate skin only

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11
Q

What nerves travel around medial epicondyle between two heads of FCU?

A

ulnar N

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12
Q

Action of Ant/Post Antebrachium

A

Flexor/Pronator

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13
Q

Where does the common interosseous A branches off? What does this artery supply?

A

Ulnar A

Anterior Superficial Antebrachium

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14
Q

Where does radial A supply? radial N supply?

A

Posterior Superficial Anterbrachium

Post Antebrachium

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15
Q

OIANB of Pronator Teres?

A

Humeral Head: medial epcondyle of humerus

Ulnar headL coronoid process of scapula

Middle of Lateral Radius

Flexor of elbow

Pronator of Forearm

Median N

Ulnar A

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16
Q

OIANB of FCU (flexor carpi ulnaris)

A

Humeral head: medial epicondyle of humerus

Ulnar head: olecranon process of humerus and proximal posterior of ulna

Pisiform/ Hook of Hammate

Base of 5th metacarpal

Flexion of wrist

Ulnar diviation of wrist

Ulnar N +A

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17
Q

OIANB of palmaris longus

A

medial epicondyle of humerus

Flexor Retinaculum

Palmar aponeurosis

Bases of proximal phalanges

Flexion of wrist

Median N

Ulnar A

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18
Q

OIANB of Flexor Carpi Radialis

A

Medial Epicondyle of humerus

Base 2nd and 3rd of metacarpal

Flexion of wrist/ Radial Deviation of Wrist

Median N

Ulnar A

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19
Q

OIANB of Flexor Digitorum Superficialis (FDS)

A

Medial Epicondyle of Humerus/ Coronoid Process of Humerus/ Anterior Oblique Line of Radius

Slip onto both sides of bases of middle phalanges of digits 2-5

Flexion of digits 2-5 at MCP joints

Flexion of digits 2-5 at PIP joints

Flexion of wrist

Median N

Ulnar A

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20
Q

OIANB of Pronator Quadratus

A

Distal 1/4 of anteromedial of Ulna

Distal 1/4 of anteromedial of radius

Pronation of forearm

Median

Anterior Interosseous A

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21
Q

OIANB of Flexor Pollucis Longus

A

Middle of anterior surface of radius

palmar surface of base of distal phalanx of thumb

Flexion of thumb at IP joint

Median N

Anterior Interosseous A

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22
Q

OIANB of flexor digotrum profundus

A

Proximal 3/4 of anterior ulna and adjacent interosseous membrane

Bases of distal phalanges of digits 2-5

Flexion of digits 2-5 at PIP/MCP/DIP joints

Flexion of wrist

Median N: 2-3 digits

Ulnar N: 4-5 digits

Anterior Interosseous A

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23
Q

OIANB of Pronator Quadratus

A

Distal 1/4 of anteromedial ulna

____________________ radius

Pronation of Forearm

Median N

Ant Interosseous Membrane

24
Q

OIANB of Flexor Pollucis Longus

A

Middle of anterior surface of radius

Palmar surface of bases of middle phalanges of thumb

Flexion fo thumb at IP joint

Median N

Ant Interosseous A

25
Q

OIANB of Flexor Digitorum Profundus

A

Proximal 3/4 of anterior ulna and adjacent interosseous membrane

Bases of distal phalanges digits 2-5

Flexion of digits 2-5 at MCP/PIP/DIP joints

Median N

Ant Interosseous A

26
Q

Border of Cubital Fossa? What are the contents of cubital fossa in order of lateral to medial?

A

Medial: Pronator teres

Lateral: Brachioradialis/ Brachialis

Floor: Supinator

Bicep Tendons, Brachial A, Median N

27
Q

What is this part of humerus?

A

anatomical neck of humerus

28
Q

What is this part of humerus #3? What does travel around it?

A

posterior humerus circumflex artery

axillary N

29
Q

What is the part of humerus for puprle arrow? Muscle attach to this?

A

floor of bicipital groove

lattissimus dorsi

30
Q

What is the part of humerus for red arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

Medial lip of bicipital groove of humerus

Teres major (I)

Dorsal surface of inferior border of scapula

Inferior 1/3 of axillary border of scapula

Lower subscapular N

Circumflex Scapular A

31
Q

What is the part of humerus for orange arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

lateral lip of bicipital groove of humerus

pectoralis major (I)

Internal rotation/ Adduction/ horizontal adduction of shoulder

Flexion of humerus/ Extension of flexed humerus

Medial/ Laterl Pectoral N

Pectoral A

32
Q

What is the part of humerus for black arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

Middle 1/3 of medial humerus

Coracobrachialis (I)

Tip of coracoid fossa of scapula

Flexion of shoulder

Adduction of shoulder

Musculocutaneous

Brachial A

33
Q

What is the part of humerus for gray arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

Deltoid tuberosity of humerus

Deltoids (I)

Anterior Deltoids: Lateral third of clavicle

Middle: Lateral portion of acromion

Posterior Deltoid: Spine of Scapula

Ant: Internar otation/ Flexion/ horizontal adduction

Middle: abduction of shoulder

Posterior: Extension/ External rotation/ Horizontal abduction of shoulder

Axillary N

PHCA

34
Q

What is the part of humerus for brown arrow (below black arrow) ?What muscle attach to this (O or I)? OIANB of the muscle?

A

Lower half of anterior humerus

Brachialis (O)

Ulnar tuberosity/ Coronoid process of ulna

Flexion of elbow

Musculocutaneous

Brachial A

35
Q

What is the part of humerus for green arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

Proximal of lateral supracondylar ridge of humerus

brachioradialis (O)

Styloid Process and adjacent radius

Flexion of elbow with forearm in neutral position (handshake muscle)
Radial N

Radial A

36
Q

What is the part of humerus for blue arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

Distal lateral supracondylar rydge of humerus

ECRL (O)
Distal lateral supracondylar rydge of humerus

Lateral epicondyle of humerus

Dorsal surface of base 2nd of metacarpal

Extension of wrist

Radial Deviation of wirst

Radial N

Radial A

37
Q

What is the part of humerus for red arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

superior facet of greater tubercle of humerus

supraspinatus (I)

O: Supraspinous fossa of scapula

Abduction of shoulder

Stabilize glenohumeral joint of scapula

suprascapular N/A

38
Q

What is the part of humerus for yellow arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

Lesser tubercle of humerus

Subscapularis (I)

Subscapular fossa of scapula

Internal rotation of scapula

upper/lower subscapular

circumflex scapular A

39
Q

What is this part of humerus for #15? Muscle(s) to this #15 (O or I)?

A

medial epicondyle of humerus (O)

PT/ FCU/ PL/ FCR/ FDS

40
Q

What is the muscle has same action as ECRL?

A

FCR (flexor carpi radialis)

radial deviation of wrist

41
Q

What is the part of humerus for green arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

Middle facet of greater tubercle of humerus

Infraspinatus (I)

Infraspinous process of scapula

External rotation of shoulder

Stabilizer glenohumeral joint of shoulder

suprascapular N/A

42
Q

What is the part of humerus for blue arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

Inferior facet of greater tubercle of humerus

Teres Minor (I)

Upper 2/3 of axillary border of scapula

External rotation of shoulder

Stabilize glenohumeral joint of shoulder

Axillary N

PHCA

43
Q

What is the part of humerus for red arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

Post Humerus above spiral groove

Lateral head of triceps (O)

Olecranon process of ulna

Extension of elbow

Radial N

Brachial Profunda A

44
Q

Where does the spiral groove locate?

A

Posterior Humerus

45
Q

How do you which is the anterior surface of humerus or posterior surface?

A

By finding the greater tubercle and lesser tubercle

46
Q

What is the red box part of humerus? Where does it locate on humerus? OIANB of muscle attach to this?

A

Deltoid Tuberosity of humerus

Anterolateral of Middle of Humerus

Deltoids

Ant: Flexion/ Internal rotation/ Horizontal adduction of shoulder

Middle: Abduction

Post: Extension/ External/ Horizontal Abduction of Shoulder

Axillary N

PHCA

47
Q

What is the red box part of humerus? What side is it on the humerus? What does it articulate with?

A

Trochlea

Medial

Trochlea notch of ulna

48
Q

What is the part of humerus for yellow arrow?What muscle attach to this (O or I)? OIANB of the muscle?

A

Post humerus below spiral groove

Medial head of triceps (O)

Olecranon process of ulna

Extension of elbows

Radial N

Brachial Profunda A

49
Q

What is this part of humerus for #9? What travels around this? What does it innervate? OIANB of this muscle?

A

Spiral groove

Radinal N in Brachium

Triceps

Long head: Infraspinous process of scapula

Lateral: Post Humerus above spiral groove

Medial: Post Humerus below spiral groove

Ulnar Tuberosity/ Coronoid process of ulna

Extension of elbow/ Extension of shoulder (long head)

Brachial Profunda A

50
Q

What is the red box part of humerus? What side is it on the humerus? What does it articulate with?

A

Olecranon fossa of humerus

Posterior of humerus

olecranon process of ulna

51
Q

What is #16 part of humerus? Muscle(s) origin attachment to this?

A

Lateral epicondyle

ECRL/ECRB/ED/ EDM

Supinator

52
Q

What is the green part of humerus?

A

Medial Supracondylar Ridge of humerus

52
Q

What is the G part of humerus? Muscle(s) Origin?

A

Lateral supracondylar rydge of humerus

Brachioradialis/ ECRL/

53
Q

What is C part of humerus? What does it articulate with

A

Capitulum of Humerus

head of radius

54
Q

What is A part of humerus? What side of humerus you can only see it? What does it attach to?

A

Coronoid fossa of humerus

Anteromedial on top of trochlea

coronoid process of ulna

Gross Anatomy (28 decks)

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