Matching Arteries
Match the arteries below to their parent arteries . 1. Common Interosseus a. 2. Superior Ulnar Collateral a. 3. Radial Collateral a. 4. Deep Palmar a. A. Brachial a. B. Radial a. C. Ulnar a. D. Deep Brachial a. E. Axillary a. Answer. 1 - C. 2 – A. 3 – D. 4 –...
Read MoreHand
Short Intrinsics of the hand are Lumbricals and Interossei. There are four Lumbricals. (from Radial side I-IV) I and II Lumbricals have a single head and are innervated by the median nerve. III and IV Lumbricals have two heads and are innervated by the deep branch of the ulnar nerve. Lumbricals are able to flex the fingers at the MCP joint and extend the IP joint, but not at the same time. When the lumbricals flex the MCP joint, the Extensor Digitorum extend the IP...
Read MoreAxillary nerve injury
The surgical neck of humerus is most common place of fracture. Axillary nerve runs the surgical neck with the posterior circumflex humerus artery. The fracture can cause : ♣ Sever weakness in abduction of humerus. (Deltoid muscle) ♣ Weakness in latera rotaion of humerus. (Teres minor muscle) Also, axillary nerve innervate the superior and lateral arm sensory. Thus, injury to the axillary nerve can cause in parathesia in the area.
Read MoreThe Hand
The palmar muscles are innervated by either the median or the ulnar nerve, and can be divided as below. Thenar and Adductor Compartments Abductor Pollicis Brevis (APL): Abducts thumb at MCP and CMC jts Opponens Pollicis (OP): Opposes thumb at CMC jts Flexor Pollicis Brevis (FPB): Flexor thumbs at MCP and CMC jts Adductor Pollicis (AP): Adducts thumbs at MCP and CMC jts Hypothenar Compartment Palmaris Brevis (PB) : Tightens the palmar aponeurosis (protective function) Abductor...
Read MoreAnatomy study “Nerves”
From today, I write some tips or facts about anatomy study on my blog. I hope the site will not be so useless. The Median nerve pierces the Pronator Teres, travels with the Brachial artery in the arm, and travels between the Flexor Digitorum Superfisialis and the Flexor Digitorum Profundus. The Ulnar nerve pierces the Flexor Carpi Ulnaris, travels with the Superior Collateral Ulnar artery in the arm and the Ulnar artery in the forearm, then travels deep to the Flexor Capri Ulnaris. The...
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