Well you can asses the function of ilioingunial nerve and genitofemoral nerve.
Cremasteric relfex can be demonstarted by lightly touching the skin of the upper medial thigh, resulting in a slight elevation of the testis.
The sensory fibers of the reflex are carried by the L1 fibers of the Ilioinguinal nerve and the motor response is a functional of the genital branch of the genitofemoral nerve that innervates the cremastric muscle.
It's called the stretch reflex and involves muscle spindles which are sensorimotor organs located in skeletal muscle.
This particular reflex is autonomic as the affected muscle, constrictor pupillae muscle, is a smooth muscle and not under conscious control. Typically if you can consciously contract the muscle, any reflex associated with that muscle is somatic in nature.
autonomic reflex
No, a somatic reflex are the reflexes of the skeletal muscle movements. The gag reflex is considered to be an autonomic reflex.
An effector is at the end of a reflex arc as it is the muscle or gland that 'does' the reflex. What the effector does is the outcome of the reflex arc.
knee jerk reflex
Somatic Reflex
The difference between a reflex and a voluntary muscle is simply that a reflex is autonomic response to a stimulus thus making it involuntary. This in direct contradiction to a voluntary muscle movement with is done by making the conscious decision to do so.
Effector
one
The reflex of the Golgi tendon.
The patellar reflex is inhibited