The Forearm

Question 1

Which bone of forearm is on medial side?

Answer 1

ulna

Question 2

Which bone of forearm is on distal side?

Answer 2

Radius

Question 3

The ___ of the humerus is the common flexor origin

Answer 3

medial epicondyle of humerus

Question 4

The ___ of the humerus is the common extensor origin

Answer 4

lateral epicondyle of humerus

Question 5

The ___ of the humerus articulates with the ulna

Answer 5

Trochlea

Question 6

The ___ of the humerus articulates with the radius

Answer 6

capitulum

Question 7

The ___ position of forearm is anatomical position

Answer 7

supinated

Question 8

The ___ position is how we naturally tend to hold our forearm

Answer 8

pronated

Question 9

______ surrounds and invests the forearm and is continuous with the brachial fascia of the arm.

Answer 9

Antebrachial fascia

Question 10

What 3 nerves provides cutaneous innervation of forearm?

Answer 10

Musculocutaneous, medial antebrachial cutaneous, and radial n

Question 11

Superior ulnar collateral artery anastomoses with _____ artery

Answer 11

posterior ulnar recurrent artery

Question 12

Inferior ulnar collateral artery anastomoses with ___ artery

Answer 12

anterior ulnar recurrent artery

Question 13

Radial collateral artery anastomoses with ___ artery

Answer 13

radial recurrent artery

Question 14

Middle collateral artery anastomoses with ___ artery

Answer 14

interosseous recurrent artery

Question 15

How many superficial muscles are there in the anterior forearm?

Answer 15

4

Question 16

How many intermediate muscles are found in the anterior forearm?

Answer 16

1

Question 17

How many deep muscles are found in the anterior forearm?

Answer 17

3

Question 18

What are the superficial muscles of the anterior forearm?

Answer 18

Palmaris longus, pronator teres, and flexor carpi radialis

Question 19

Proximal Attachment:-medial epicondyle of humerus
Distal Attachment:-flexor retinaculum; continuous with palmar aponeurosis
Actions:-flexes hand at wrist, tenses palmar aponeurosis
Innervation:-median nerve

Answer 19

Palmaris longus

Question 20

Proximal Attachment:-coronoid process of ulna
Distal Attachment:-middle of lateral surface of radius
Actions:-pronates and flexes forearm at elbow
Innervation:-median nerve

Answer 20

Pronator teres

Question 21

Proximal Attachment:-medial epicondyle of humerus(“common flexor origin”)
Distal Attachment:-base of 2nd metacarpal
Actions:-flexes and abducts hand at wrist
Innervation:-median nerve

Answer 21

Flexor carpi radialis

Question 22

What nerve innervates the superficial muscles of the anterior forearm?

Answer 22

median