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The muscles of the hand can be subdivided into two groups: the extrinsic and intrinsic muscle groups. The extrinsic muscle groups are the long flexors and extensors. They are called extrinsic because the muscle belly is located on the forearm. The intrinsic group are the smaller muscles located within the hand itself. The muscles of the hand ...
The muscles acting on the thumb can be divided into two groups: The extrinsic hand muscles, with their muscle bellies located in the forearm, and the intrinsic hand muscles, with their muscles bellies located in the hand proper. [1] The muscles can be compared to guy-wires supporting a flagpole; tension from these muscular guy-wires must be ...
Gross anatomy has become a key part of visual arts. Basic concepts of how muscles and bones function and deform with movement is key to drawing, painting or animating a human figure. Many books such as "Human Anatomy for Artists: The Elements of Form", are written as a guide to drawing the human body anatomically correctly. [4]
1 opponens digiti minimi (hand) Upper limb, Hand, Medial volar, hypothenar: hook of hamate, flexor retinaculum: medial border of 5th metacarpal: ulnar artery: deep branch of ulnar nerve (C8 and T1) draws 5th metacarpal anteriorly and rotates it, bringing little finger (5th digit) into opposition with thumb 2 1 lumbricals of the hand 1-4
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It is considered an extrinsic hand muscle because it acts on the hand while its muscle belly is located in the forearm. Together the flexor pollicis longus, pronator quadratus, and flexor digitorum profundus form the deep layer of ventral forearm muscles. [2] The muscle is named from Latin 'deep bender of the fingers'.
1.2 Hand and wrist. 2 Lower limb. 3 Other. ... Download as PDF; Printable version; In other projects ... Outline of human anatomy;
The thenar eminence is the mound formed at the base of the thumb on the palm of the hand by the intrinsic group of muscles of the thumb. [1] The skin overlying this region is the area stimulated when trying to elicit a palmomental reflex. The word thenar comes from Ancient Greek θέναρ (thenar) 'palm of the hand'. [2]