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Somatic Nervous System

Provide voluntary control of skeletal muscles

Schwann Cell

Glial cell of the PNS (peripheral NS)

Directing activities that continue for extended periods such as growth and pregnancy

Each of the following is a function of the nervous system except for one. Identify the EXEPTION
•Providing Sensation of the internal and external environments
•Integrating voluntary and involuntary processing
•Coordination voluntary and involuntary activities

•Regulation or controlling peripheral structure and systems

Information processing

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

•Secretion of cerebrospinal fluid
•Isolation of neurons


Small phagocytes cells that are especially obvious in damaged tissue in the CNS


Cells responsible for information processing and transfer

Axon Terminals /Knobs

Neurotransmitters are released from here


The Glial cells are responsible for maintaining the blood-brain barrier

Saltatory Conduction

Action potential occurs at successive nodes along the length of the stimulated axon

Precentral Gyrus

Location of primary motor cortex


The region the brain that is involved in conscious thoughts and intellectual functions as well as processing somatic sensory and motor information

Corpus Callosum

The major communication between cerebral hemispheres occur though


Oversees the postural muscles of the body and making rapid adjustments to maintain balance and equilibrium (coordination)

Right Parietal Lobe

After suffering a stroke, Cindy finds that she cannot feel her left arm. This would be a suggestion that the stroke damage is in the area of the__________

Sensory neurons from each body region synapse in specific brain regions

We can distinguish between sensations that originate in different areas of the body because

Number of sensory receptors in the area of the body

The area of sensory cortex devoted to a body region is relative to ______

Brain and Spinal Cord

The term CENTRAL NERVOUS SYSTEM refers to the:

Association Neuron

A neuron with a cell body located in the CNS whose primary function is connection other neurons is called____________


Receive incoming stimuli


The point at which an impulse from one nerve cell is communicated to another nerve cell is called:


In a reflex arc, muscles and glands are:


The shallow groove located on the surface of the cerebral cortex is called:

Longitudinal Fissure

the single, deep grove located on the surface of the cerebral cortex is called:

Medulla Oblongata

The vital center for the control of visceral activities such as heart rate, breathing, blood pressure, swallowing, and vomiting are located in the :

Automatic Nervous System

The sympathetic and parasympathetic nervous systems are subdivisions of the:

Sympathetic Nervous System

Preparing the body for the "fight-to-fight" response during threatening situations is the role of the:

Arbor Vitae

White matter in the cerebellum


Schwann Cells are functionally similar to _________

Sodium-Potassium pump

Pumps 3 sodium ions outside the cell and 2 potassium ions inside


Is considered a motor speech area


Divisions of the central hemisphere that are named after the overlying skull bones

Reduction in brain size and weight

Changes in the CNS that accompany aging include


Problems in balance of hearing may follow trauma in which nerve?

Ependymal Cells

Ciliated CNS neuroglia that line the cavities of the brain and spinal cord and play an active role in moving the cerebrospinal fluid


Control of temperature, endocrine activity, metabolism, and thirst are functions associated wit the :

Metabolic waste such as urea

The blood-brain barrier is effective against the passage of

Sensory Nerves

Afferent nerves are called___________

Efferent nerves

Motor nerves are called_____________

Skeletal Muscle

Which effectors is NOT directly controlled by the autonomic nervous system:


Mildest consequence of traumatic brain injury

Reticular Formation

The brain are that regulates activities that control the state of wakefulness or alertness of the cerebral cortex is the

Dura mater

The outer most meninges covering the brain or spinal cord is the______


The cranial nerve that has three branches

A Cerbrovascular accident ( CVA)

The prefrontal lobes is damaged during

All sodium gates are closed

A second nerve impulse CANNOT be generated until_____________

Receptor, Afferent Neuron, Neuron, Integration Center ( Interneuron), efferent neuron, effecter

Correct Sequence in a typical reflex?

Myelinated Nerve Fiber

Gray, and composes the gray matter of the brain and spinal cord

Unmyelinated Nerve Fiber

White, composes the gray matter of the brain and spinal cord


The concentration of sodium ions is higher on the outside of its membrane and potassium is higher of the membrane when the nerve fiber is_________

Nodes of Ranvier

The gaps between Schwann Cells are found at regular intervals in peripheral system neurons called______


The brain dysfunction where blood supply to a region ( or regions) of the brain is blocked and vital brain tissue dies, as by a blood clot of rupture blood vessel is called


A traumatic injury that destroys brain tissue is called


A slight and transient brain injury is called _____


One of the last CNS areas to mature, which contains the temperature regulating center and accounts for why premature infants have difficulty controlling body heat loss


What is the correct sequence of events that follow a threshold potential:
1. The membrane becomes depolarized
2.Sodium channels open and sodium ions diffuse inward
3. The membrane becomes Repolorized
4.Active transports move sodium ions out of the cell and potassium ions into the cell
5. Potassium channels open and the potassium ions diffuse outward

The heart rate when sympathetic neurons are stimulated

Which of the following would be greater?
-The heart rate when parasympathetic neurons are stimulated
-The heart rate when sympathetic neurons are stimulated

Myelinated Fiber

In which of the following would the rate of impulse conduction be greater?
-Myelinated Fiber
-A nonmyelinated Fiber

continuous conduction

Local currents depolarize adjacent areas of the membrane so that action potentials continue to form along membrane

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