Spinal Nerves & Peripheral Nerves And Autonomic Nervous System (ANS)

Question 1

Please explain where the median nerve lies and what it does

Answer 1

Runs along the forearm (anteromedial) and controls muscles in the hand that allow for wrist and finger flexion.

Question 2

Please explain where the radial nerve lies and what it does

Answer 2

Runs along the back (posterior) of the arm and controls the muscles responsible for extending the wrist and fingers.

Question 3

Please explain where the ulnar nerve lies and what it does

Answer 3

Runs along the inner side of the arm and controls fine motor functions of the hand.

Question 4

Please explain where the femoral nerve lies and what it does

Answer 4

Innervates the anterior thigh muscles responsible for hip flexion and knee extension.

Question 5

Please explain where the sciatic nerve lies and what it does

Answer 5

The largest nerve in the body, running from the lower back down the leg. It controls the hamstring muscles and lower leg muscles.

Question 6

Please explain where the Common Fibular Nerve nerve lies and what it does

Answer 6

Innervates muscles responsible for dorsiflexion and foot eversion.

Question 7

Please explain where the parasympathetic division is found and what it does

Answer 7

Originated in the brain stem and Promotes “rest and digest” functions, such as slowing the heart rate and stimulating digestion.

Question 8

Please explain where the sympathetic division is found and what it does

Answer 8

Originate in the thoracic and lumbar regions and Prepares the body for action by increasing energy and alertness.