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Gross Anatomy > Lab 9: Posterior Antebrachium; hand > Flashcards

Lab 9: Posterior Antebrachium; hand Flashcards

1
Q

What are the bones in hand?

A

Carpal

Metacarpals

Phalanges

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2
Q

What are the bones in phalanges of hand?

A

distal phalanges (DP)

middle phlanges (MP)

Proximal phalnges (PP)

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3
Q

What phalanges that the thumb doesnt have?

A

middle phalages

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4
Q

What are the joints in hand?

A

interphalangeal joint (IP) - distal and proximal

metacarpalphalangeal joint (MP)

carpal metacarpal joint (CMC)

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5
Q

Mnemonic Snuff box of hand

A

Some Lovers Try Position that they can’t handle

scaphoid, lunate, trapezium, pisiform, trapezoid, triquetrum, capitate, hamate

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6
Q

Bones from #3 to #10?

A

8 scaphoid

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7
Q

What is the joint that ED control?

What are the joints that lumbricals and interosseous control?

A

MCP

PIP and DIP

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8
Q

What does ulnar A give off?

what does radial A give off?

A

superficial palmar arch

Deep palmar arch

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9
Q

OIANB of Brachioradialis?

A

Proximal Lateral Supracondylar rydge of humerus

Styloid Process and adjacent radius

Flexion of elbow with forearm in neutral position (handshake)

Radial N

Radial A

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10
Q

OIANB of ECRL

A
  • Distal lateral supracondylar rydge of humerus
  • Lateral epicondyle of humerus

Dorsal aspec of base of 2nd metacarpal

Extension of wrist/ Radial deviation of wrist

Radial N

Radial A

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11
Q

OIANB of ECRB

A

Lateral epicondyle of humerus

Dorsal aspect of base of 3rd metacarpal

Extension of wrist

Deep branch of radial N

Radial A

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12
Q

OIANB of extensor digitorum

A

Lateral epicondyle of humerus

Extensor expansion of 2-5 digits

Extension of digits 2-5 at MCP joints/ Extension of wrist

Deep branch of N

Radial A

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13
Q

OIANB of Extensor Digiti Minimi

A

Lateral Epicondyle of humerus

Extensor expansion of digit 5

Extension of digit 5 at MCP joint / Extension of wrist

Deep branch of radial N

Radial A

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14
Q

OIANB of extensor carpi ulnaris

A

lateral epicondyle of humerus

posterior proximal of ulna

Base of 5th metacarpal

Extension of wrist/ Ulnar deviation of wrist

Deep branch of Radial N

Radial A

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15
Q

OIANB of supinator

A

Lateral epicondyle of humerus

Annular and radial collateral ligament

Supinator crest of ulna

Lateral surface of proximal of 1/3 radius

Supinator of forearm

Deep branch of radial N

Post Interosseous A

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16
Q

OIANB of extensor indicis

A

Posterior Ulna

Adjacent interosseous membrane

Extensor expansion of digit 2/ Extension of wrist

deep branch of radial N

Post Interosseous A

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16
Q

OIANB of abductor pollucis longus

A

Posterior surface of ulna and radius

interosseous Membrane

Lateral aspect of base of 1st metacarpal

Abduction of 1st metacarpal of thumb at CMC joint

Radial deviation of wrist

Deep branch of radial N

Post Interosseous Membrane

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17
Q

Muscles that attach on thumb? what does these muscle have action in common?

A

AbPL

EPB
EPL

Radial deviation of wrist

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18
Q

OIANB of extensor pollicis brevis

A

Posterior Radius/ Interosseous

Base of proximal phalanx of thumb

Extension of thumb at MCP joint/ Radial deviation of wrist

Deep branch of radial N

Post Interosseous membrane

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19
Q

OIANB of extensor pollucis longus

A

Middle 1/3 of posterior ulna and interosseous membrane

Base of distal phalanx of thumb

Extension of thumb at IP joint/ radial deviation of wrist

Deep branch of radial N

Post Interosseous A

20
Q

Muscles in the thenar of hand?

A

AbPB

FPB

OP

AdP

21
Q

OIANB of AbPB

A

Flexor retinaculum/ trapezium/ scaphoid

radial side of base of proximal phalanx of thumb

abduction of thumb at cmc joint

median N

SF branch of radial A

22
Q

OIANB of Flexor pollicis brevis

A

SF head: trapezium/ flexor retinaculum

Deep head: trapezoid/ capiate

Radial side of proximal phalanx of thumb

Flexion of thumb at MCP joint

Median N for SF head

Ulnar N for deep

SF branch of radial A

23
Q

OIANB of Opponen Pollucis

A

Flexor retinaculum/ Trapezium

Lateral shaft of 1st metacarpal

Opposition of thumb at CMC joint

Median N

SF branch of radial A

24
Q

OIANB of Adductor Pollicis

A

Transverse head: Anterior surface of 3rd metacarpal

Oblique headL Base of 2nd and 3rd metacarpal. capitate. trapezium/ trapezoid

Medial side of base of proximal phalanx of thumb

Adduction of 1st metacarpal at CMC joint

Ulnar N

SF branch of radial A

25
Q

OIANB of Abductor DM

A

Pisiform

Ulnar side of base of proximal phalnx of digit 5

Abduction of proximal phalanx of digit 5 at MCP joint

Ulnar N

Ulnar A

25
Q

OIANB of Flexor Digiti Minimi

A

Flexor retinaculum

Hook of hammate

Base of proximal phalanx of digit 5

flexion of digit 5 at MCP joint

Ulnar N/ A

26
Q

What are muscles that have same insertion radial side of base of proximal phalanx of thumb?

A

Abductor Pollicis Brevis and Flexor Pollicis Brevis

26
Q

What are the muscles that have same origin: Flexor retinaculum and hook of hamate?

A

Flexor Digiti Minimi and Opponen Digiti Minimi

27
Q

OIANB of Opponen Digiti Minimi

A

Hook of Hamate/ Flexor retinaculum

Medial border of 5th metacarpal

Opposition of digit 5 at CMC joint

Ulnar N

Ulnar A

28
Q

Lumbricals OIANB

A

FDP tendons

extension expansion of digit 2-5 on radial side of proximal

Flexion of digit 2-5 at MCP joint

Extension of digits 2-5 at PIP/ DIP joint

Digit 2-3: median N

Ulnar N: digit 4-5

Deep palmar arch

29
Q

Origin and insertion of dorsal interossei

A

two heads from adjacent dorsal surface of metacarpals

Base of proximal phalanges and extensor expansion of digits 2-4

Digit 2: radial side

Digit 3: radial and ulnar side

Digit 4: ulnar side

30
Q

ANB of dorsal interossei

A

Abduction of digits 2-4 at MCP joints

Flexion of digits 2-4 at MCP joints

Extension of digits 2-4 at DIP/PIP

Ulnar N

Deep palmar arch

31
Q

What nerve and artery do the digiti minimi muscles have in common?

What nerve and artery do the thenar muscles have in common?

What nerve and artery do the additional intrinsic hand have?

A

Ulnar N/ Ulnar A

Median N or Ulnar N with SF branch of radial A

Ulnar N and Deep palmar arch A

32
Q

What muscle has insertion is medial side of proximal phalanx of thumb?

What muscle has insertion is ulnar side of proximal phalanx of digit 5?

A

Adductor Pollicis

Abductor Digiti Minimi

33
Q

All AbPL. AbPB, opponen pollicis and adductor pollicis have what control of joint in common?

A

actions of CMC joint

34
Q

OIANB of palmar interossei

A

Palmar surfaces of shafts of 2nd, 4th and 5th metacarpals

Base of proximal phalanges and extensor expansion of digits 2,4,5

Digit 2: ulnar side

Digit 4,5: radial sides

Flexion/Adduction of digits 2,4,5 at MCP joint

Extension of digits 2,4,5 at PIP/DIP joint

Ulnar N

Deep palmar arch

35
Q

What part is this of ulna? What muscle does it attach to I or O?

A

Olecranon process of ulna

Triceps (I) and Flexor Carpi Ulnaris (O)

36
Q

What part is this of ulna? What does it attach to?

A

trochlea notch of ulna

trochlea of humerus

37
Q

What is this part of ulna? What muscle atttaach to it? OIANB of that muscle

A

coronoid process of ulna

brachialis

Lower half of anterior humerus

Ulnar tuberosity/ Coronoid process of ulna

Brachial A/ Musculocutaneous N

Pronator teres

Middle of lateral radius

Pronation of forearm/ Flexion of elbow

Median N

Ulnar A

38
Q

What is this part of ulna? What does it attach with? How do you distinguish between this and coronoid process of ulna

A

radial notch of ulna

head of the radius

the coronoid process of ulna is higher

39
Q

What is this part of ulna for #6? Muscle(s) attachment to this I or O? OIANB

A

Ulnar tuberosity

Brachialis

lower half of anterior humerus

ulnar tuberosity/ coronoid process of ulna

Flexion of elbow

Musculocutaneous

Brachial A

40
Q

What is this part of ulna #8? How do you recognize it?

A

styloid process of ulna

It is located in the end of ulna (protruding bone)

41
Q

What is this part of ulna? What does it attach to?

A

head of ulna

ulnar notch of radius

42
Q

What is this part of radius? #10 How do you know? What does it attach to?

A

head of radius

it has articulating surface

capitulum and radial notch of ulnar

43
Q

What is this part of radius? #11

A

neck of radius

44
Q

What is this part of radius? #13

A

Styloid process of radius

45
Q

What is this part of radius? Muscle(s) attachemtn to this? O or I?

A

Radial tuberosity

bicep brachii

Short head: coracoid process of scapula

Long head: Supraglenoid tubercle of scapula

Flexion of elbow

long head: abduction of externally rotated arm

flexion of elbow/ supination of forearm

short head: flexion of shouilder

46
Q
A

Gross Anatomy (28 decks)

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