... To understand how a person is able to manipulate the hands, you need to study the different hand muscles
responsible for the movements. Extrinsic Hand Muscles The extrinsic hand muscles are in the forearm
, but the tendons extend to the hands. They acquired the name extrinsic because the muscle belly is outside the hand. Whenever you move your hands, fibrous connective tissue, known as the ...
Brachial Nerve Plexus
... minor its sensory capabilities. The posterior cord is the one responsible for yielding the radial nerve. The radial nerve, in turn, is responsible for the innervations in the radial portion of the forearm
. The skin in the posterior receives the sensory impulses, while the motor fibres innervate the extensor muscles of the elbow’s joint. It is also the one responsible for the ability of ...