Nerve

Question 1

Epineurium

Answer 1

Outer coar

dense irregular to loose connective tissue

Question 2

Perineurium

Answer 2

Most prominent and visible coat

-Forms longitudinal bundle of axons– fascicle

Question 3

Endoneurium

Answer 3

Schwann cell-ensheathed axons surrounded by delicate layer of reticular fibers

Question 4

Ganglia

Answer 4

Peripheral clusters of the cell bodies of neurons that are surrounded by satellite cells

Question 5

Sensory ganglia

Answer 5

Contain cell bodies of pseudo unipolar neurons
numerous myelinated fibers
Neurons have a central nucleus and a regular ring of satellite cells

Question 6

Autonomic ganglia

Answer 6

Contain cell bodies of multipolar neurons
synapses in ganglion
numerous unmyelinated fibers

Question 7

Free endings

Answer 7

Bare axons
important for
-hot and cold
-itching
-touch
-pain

Question 8

Meissner’s corpuscles

Answer 8

Dermal papillae of hairless skin

touch responsive to low freq stimuli

Question 9

Pacinian corpuscles

Answer 9

Hypodermis and deeper dermis of skin

Mechanoreceptors that respond to pressure and vibration

Question 10

Muscle spindles

Answer 10

Encapsulated receptors in skeletal muscle

important proprioreceptors

Question 11

Sensory nerve fibers of muscle spindles

Answer 11

send signals about the extrafusal muscle fiber length

• relay info to spinal cord
• play are role in reflexes involved in maintaining posture and coordinating walking