Ch. 7.6 Nervous System Key Terms
the section below the back of the cerebrum
Cerebellum
clear colorless fluid that fills the ventricles
cerebrospinal fluid
consists of the brain and spinal cord
Central nervous system
the lowest part of the brainstem
medulla oblongata
basic structural unit of the nervous system
Neuron
the largest and highest section of the brain
Cerebrum
hollow spaces that connect
Ventricles
carries messages between the CNS and body
somatic nervous system
consists of the nerves and has two divisions
peripheral nervous system
part of the sympathetic autonomic nervous system
parasympathetic
responsible for many reflex actions
spinal cord
three membranes that cover and protect the brain and spinal cord
Meninges
regulates and controls the autonomic nervous system
Hypothalamus
acts as a relay center and directs sensory impulses to the cerebrum
Thalamus
a combination of many nerve fibers located outside the brain and spinal cord
Nerves
a mass of nerve tissue well protected by membranes and the cranium
Brain
the section located below the cerebrum at the top of the brainstem
Midbrain
contains the sympathetic and parasympathetic nervous systems
autonomic nervous system
the section located below the midbrain and in the brainstem
Pons
part of the sympathetic autonomic nervous system
Sympathetic
a complex, highly organized system that coordinates all the activities of the body
nervous system
The section located between the cerebrum and the midbrain
Diencephalon