13a-13c

Front

What is the name of the plexus associated with innervation in the arm and hand?

Back

Brachial plexus

Front

What type of nerve fibers are responsible for carrying sensory information to the central nervous system?

Back

Afferent fibers (Sensory fibers)

Front

What reflex is activated in response to a painful stimulus on the ipsilateral side?

Back

Flexor reflex

Front

What are dermatomes?

Back

Specific skin regions innervated by cutaneous branches of spinal nerves.

Front

Where does the spinal cord begin?

Back

Foramen magnum

Front

What is the function of the brachial plexus?

Back

To provide motor and sensory innervation to the upper limb.

Front

What are the two main types of nerve fibers?

Back

Afferent (sensory) and efferent (motor) fibers.

Front

What is the role of cutaneous branches of spinal nerves?

Back

To innervate specific skin regions (dermatomes).

Front

What is the significance of the flexor reflex in the body?

Back

It allows for a quick withdrawal from painful stimuli.

Front

How many pairs of spinal nerves are there in the human body?

Back

31 pairs of spinal nerves.