The Forearm Flashcards
Which bone of forearm is on medial side?
ulna
Which bone of forearm is on distal side?
Radius
The ___ of the humerus is the common flexor origin
medial epicondyle of humerus
The ___ of the humerus is the common extensor origin
lateral epicondyle of humerus
The ___ of the humerus articulates with the ulna
Trochlea
The ___ of the humerus articulates with the radius
capitulum
The ___ position of forearm is anatomical position
supinated
The ___ position is how we naturally tend to hold our forearm
pronated
______ surrounds and invests the forearm and is continuous with the brachial fascia of the arm.
Antebrachial fascia
What 3 nerves provides cutaneous innervation of forearm?
Musculocutaneous, medial antebrachial cutaneous, and radial n
Superior ulnar collateral artery anastomoses with _____ artery
posterior ulnar recurrent artery
Inferior ulnar collateral artery anastomoses with ___ artery
anterior ulnar recurrent artery
Radial collateral artery anastomoses with ___ artery
radial recurrent artery
Middle collateral artery anastomoses with ___ artery
interosseous recurrent artery
How many superficial muscles are there in the anterior forearm?
4
How many intermediate muscles are found in the anterior forearm?
1
How many deep muscles are found in the anterior forearm?
3
What are the superficial muscles of the anterior forearm?
Palmaris longus, pronator teres, and flexor carpi radialis
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
Palmaris longus
Proximal Attachment:-coronoid process of ulna
Distal Attachment:-middle of lateral surface of radius
Actions:-pronates and flexes forearm at elbow
Innervation:-median nerve
Pronator teres
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
Flexor carpi radialis
What nerve innervates the superficial muscles of the anterior forearm?
median
