Sensory Nervous System

Question 1

What is the somatosensory pathway?

Answer 1

Activation of sensory receptor transmission to spinal cord by peripheral nerves  transmission via ascending pathway through thalamus to primary sensory cortex  processing and perceiving

Question 2

What is a ganglion?

Answer 2

A group of nerve cell bodies in the peripheral nervous system

Question 3

How many pairs of spinal nerves are there?

Answer 3

31

8 cervical, 12 thoracic, 5 lumbar and 6 sacral

Question 4

How is the spinal cord protected?

Answer 4

Spinal column surrounded by meninges and cerebrospinal fluid

Question 5

The sensory, afferent neurons are where in the spinal cord?

Answer 5

Dorsal roots

Question 6

The motor efferent neurons are where in the spinal cord?

Answer 6

Ventral roots

Question 7

Which receptors detect pain?

Answer 7

Nociceptors

Question 8

Encapsulated nerve endings…

Answer 8

Increases sensitivity or increase selectivity with respect to the modality it responds to

Question 9

What is a dermatome?

Answer 9

Area of skin innervated by the sensory branch of a single spinal nerve