Ch. 11: Nervous Tissue

Question 1

TRACT

Answer 1

Tract: a bundle of axons inside the CNS

Question 2

NUCLEI

Answer 2

Nuclei: collection of neuron cell bodies

Question 3

NERVE

Answer 3

Nerve: a bundle of axons outside the brain and spinal cord.

Cranial nerves: originate from the brain; 12 pairs.
• Spinal nerves: originate from spinal cord; 31 pairs.

Question 4

GANGLION

Answer 4

Collection of neuron cell bodies

Question 5

PLEXUS

Answer 5

Plexus: extensive network of axons, and sometimes neuron cell bodies, located outside CNS.