UL 3- The Anterior Forearm and Wrist.

Question 1

What are the two bones of the forearm and what are they connected by

Answer 1

radius
ulnar
interosseous membrane.

Question 2

at the proximal ends of the radius and ulnar attach to the distal end of the humorous forming the ____

Answer 2

elbow

Question 3

how many bones are in the carpus

Answer 3

8

Question 4

The distal radius articulates with which 2 distal bones of the carpus, what joint do they also form

Answer 4

scaphoid and lunate
radiocarpal

Question 5

describe the proximal row of carpal bones comprised from lateral to medial

Answer 5

scaphoid, lunate, triquetral and the pisiform

Question 6

describe the distal row of carpal bones comprised from lateral to medial

Answer 6

Tapezium, trapezoid, capitate and the hamate.

Question 7

which carpel provides anteriorly a hook like processes palpable upon examination

Answer 7

Hamate

Question 8

The most commonly fractured carpal bone is the _______

Answer 8

scaphoid

Question 9

The metacarpals lie distal to the _____.

Answer 9

carpus

Question 10

how many phalanges for each finger

Answer 10

2 for all except thumb = 1

Question 11

how many muscles are un the anterior muscle compartment of the forearm

Answer 11

8

Question 12

name the 3 layers of muscle on the anterior compartment

Answer 12

superficial middle deep

Question 13

how many superior anterior compatemtns muscles are there and name them

Answer 13

4
-Pronator teres
-Flexor carpi radialis
-Palmaris longus
-Flexor carpi ulnaris

Question 14

These superficial muscles are attached proximally to the ______ _______ of the humorous

Answer 14

medial epicondyle

Question 15

describe the function of the superficial anterior compartment muscle: Flexor carpi radialis

Answer 15

flexes and abducts the wrist

Question 16

how many muscles are there in middle layer of the anterior compartment, and name them

Answer 16

1
flexor digitorum superficialis

Question 17

how many muscles are in the deep layer of the anterior compartments and name them

Answer 17

3
* Flexor digitorum profundus
* Flexor pollicis longus
* Pronator quadratus

Question 18

list important structures found in the cubital fossa:

Answer 18

• Biceps tendon
• Median nerve
• Brachial artery which bifurcates into the radial and ulnar arteries
• Superficial veins lie in the subcutaneous tissue over the cubital fossa = key sites for IV access

Question 19

The brachial artery bifurcates in the cubital fossa into which two terminal branches

Answer 19

radial and ulnar

Question 20

The radial artery travels along the _____ aspect of the forearm and it can usually be easily palpated at the wrist.

a)medial
b)lateral

Answer 20

lateral

Question 21

The radial artery travels along the _____ aspect of the forearm and it can usually be easily palpated at the wrist

a)medial
b)lateral

Answer 21

medial

Question 22

The radial and ulnar arteries enter the hand. They anastomose in the palm of the hand to form the ____ _____

Answer 22

palmar arches

Question 23

The cephalic vein courses _______ in the forearm and the basilic vein courses _______.

Answer 23

laterally
medially