d. What occurs from the moment Melissa decides to swing to actually completing the act? Detail the steps needed for the thought to go from the first neuron to the second, and then from the last neuron to one of the muscles you identified in Part 1c above. [25 points possible]
e. Which nerve directly innervates the muscle you chose in Part 2d above?
part 1 i have completed but in case you need a list of the muscles from 1 c they are
Upper arm muscles are:
Pectoralis major which is responsible for flexes and adducts the upper arm and brings it anteriorly across the chest.
Deltoid which is responsible for assisting in flexing, extending, and adducting to the upper arm.
Lattissimus dorsi which extends and adducts the upper arm posteriorly.
Supraspinatrust which assists in abducting the arm.
Coracobrachialis which assists in rotating the arm medially. It also assists in flexing and adduction.
Teres minor which is responsible for rotating the arm outwardly.
Teres major assists in rotating the arm medially, adducting, and extending.
Subscapularist is responsible for rotating the arm medially.
Infraspinatrust is responsible for rotating the arm outwardly and laterally.
Forearm Muscles:
Supinator is responsible for supinates the forearm.
Pronator teres and pronator quadrates are responsible for pronating the forearm.
Triceps brachil is responsible for extending the lower arm at the elbow.
Brachioradialis and brachialis are responsible for flexing the forearm at the elbow.
Bicep brachi is also responsible for flexing the forearm at the elbow, it also rotates the hands laterally.
Wrist and Hand Muscles:
Flexor carpi radialis is responsible in flexing the hand and the forearm.
Palmaris longus flexes the hand.
Flexor carpi radialis longus is responsible for extending the wrist and hand. It is also responsible for abducting the hand.
Extensor carpi ulnaris is responsible for adducting and extending the hand and wrist.
Extensor carpi radialis brevis extends the hand.
Flexor digitorum superficialis is responsible for flexing the fingers.
Flexor digitorum is responsible for extending the fingers.
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