Chapter 9 Nervous System

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

31

Which of the following are under control of the medulla?

Adjustment of heart rate Regulation of blood pressure Regulation of breathing Vomiting

Which of the following is NOT a lobe of the cerebrum?

Cerebellum

Which of the following is NOT an example of reflexes?

Chewing

What is the band of white fibers that connects the cerebral hemispheres?

Corpus callosum

The peripheral nervous system is made up of

Cranial nerves and spinal nerves

The spinal cord extends from the base of the skull to the

First lumbar vertebra

The cerebral cortex consists of

Gray matter

Which of the following is NOT a characteristic of the sympathetic division of the autonomic nervous system?

Increases activity in the digestive tract

Which of the following is NOT a function of the hypothalamus?

Involved with the onset of puberty

Which of the following is NOT a characteristic of the autonomic nervous system?

It is responsible for conscious body movements.

Which of the following divides the cerebrum into two hemispheres?

Longitudinal fissure

What are the meninges?

Membranes that surround the brain and spinal cord

Gray matter is made up of

Neuron cell bodies and unmyelinated fibers

What is the name given to a chemical that transmits a nerve impulse across a synaptic cleft from one neuron to another?

Neurotransmitter

A myelin sheath is formed around axons within the central nervous system by

Oligodendrocytes

What is the function of the peripheral nervous system?

Provides a communication network between the central nervous system and the body

What is the name of the region of communication between two neurons?

Synapse

The function of a neuron is to

Transmit nerve impulses

What is the name of the interconnected fluid-filled cavities in the brain?

Ventricles