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