Week 5 Stuff

Question 1

List the muscles of the thenar eminence and the general location in the hand.

Answer 1

Abductor pollicis brevis, flexor pollicis brevis, opponens pollicis, adductor pollicis. Radial side of palm

Question 2

List the muscles of the hypothenar eminence and the general location in the hand.

Answer 2

Abductor digiti minimi, flexor digiti minimi brevis, opponens digiti minimi. Ulnar side of palm

Question 3

How many palmar interossei muscles are there?

Answer 3

3

Question 4

How may dorsal interossei muscles are there?

Answer 4

4

Question 5

The median nerve innervates all the thenar eminence muscles except which?

Answer 5

Adductor pollicis

Question 6

The ulnar nerve innervates all the _______________________eminence muscles.

Answer 6

hypothenar

Question 7

The palmar interossei muscles perform [3] ____________ at the ___________________joints of digits________________.

Answer 7

adduction, metacarpophalangeal, 2, 4 and 5

Question 8

The dorsal interossei muscles perform [3] __________________ at the____________________joints of digits______________.

Answer 8

abduction, metacarpophalangeal, 2, 3 and 4

Question 9

What is the innervation of the lumbricals?

Answer 9

Median nerve to lumbricals 1 and 2. Ulnar nerve to lumbricals 3 and 4

Question 10

What is the primary action of the lumbricals at which digits?

Answer 10

Flexion at metacarpophalangeal joint of digits 2-5. Extension at proximal and distal interphalangeal joints of digits 2-5

Question 11

Name the movements at the elbow joint.

Answer 11

Flexion and extension

Question 12

Name the articulations that make up the traditional elbow joint.

Answer 12

• Trochlea of humerus articulates with trochlear notch of the ulna.
• Capitulum of humerus articulates with the head of the radius

Question 13

Name the movements of the radioulnar joint.

Answer 13

Supination, pronation

Question 14

Name the articulation that makes up the proximal radioulnar joint.

Answer 14

Head of the radius articulates with the radial notch of the ulna

Question 15

Which bones form the proximal row of carpals?

Answer 15

Scaphoid, lunate, triquetrum, pisiform

Question 16

Which bones form the distal row of carpals?

Answer 16

Trapezium, trapezoid, capitate, hamate

Question 17

Which muscle attaches to the olecranon process?

Answer 17

Triceps brachii, flexor carpi ulnaris

Question 18

The head of the ulna is on the proximal or distal end of the ulna?

Answer 18

distal

Question 19

What is the distal attachment of brachioradialis?

Answer 19

Lateral side of the distal end of the radius

Question 20

Which carpal bone articulates with the 1st metacarpal?

Answer 20

trapezium

Question 21

What is the anatomical term for the knuckle joint?

Answer 21

Metacarpophalangeal joint

Question 22

Which muscle flexes the elbow and is deep to the biceps brachii?

Answer 22

Brachialis

Question 23

Which muscle flexes the elbow in radioulnar joint neutral?

Answer 23

Brachioradialis

Question 24

What is the distal attachment of abductor pollicis longus?

Answer 24

Base of metacarpal 1

Question 25

What is the distal attachment of flexor carpi radialis?

Answer 25

Base of metacarpal 2

Question 26

What is the distal attachment of flexor carpi ulnaris?

Answer 26

Base of metacarpal 5, pisiform, and hook of hamate

Question 27

What is the distal attachment of extensor carpi radialis longus?

Answer 27

Base of metacarpal 2, dorsal surface

Question 28

What is the distal attachment of extensor carpi radialis brevis?

Answer 28

Base of metacarpal 3, dorsal surface

Question 29

What is the distal attachment of extensor carpi ulnaris?

Answer 29

Base of metacarpal 5, dorsal surface

Question 30

Name the superficial muscles of the anterior forearm.

Answer 30

Flexor carpi radialis, palmaris longus, flexor digitorum superficialis, flexor carpi ulnaris

Question 31

Name the deep muscles of the anterior forearm.

Answer 31

Flexor pollicis longus, flexor digitorum profundus

Question 32

Which tendons form the anatomical snuffbox?

Answer 32

Abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus

Question 33

The tendon of which muscle courses around the dorsal tubercle?

Answer 33

Extensor pollicis longus

Question 34

The tendons of which muscle split to attach to the sides of the middle phalanges of digits 2-5?

Answer 34

Flexor digitorum superficialis

Question 35

Which muscles extend digit 1 at the CMC joint?

Answer 35

Extensor pollicis longus, extensor pollicis brevis, abductor pollicis longus