Introduction Part I (Exam 1) Flashcards Preview

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Flashcards in Introduction Part I (Exam 1) Deck (35):
1

Components of the central nervous system

Brain, Cerebellum, Brain Stem, Spinal Cord

2

Components of the peripheral nervous system.

All the components outside the cranium and spinal cord.

3

PNS is divided into which two systems?

Somatic and Autonomic

4

Somatic Nervous System is _______.

Voluntary

5

Autonomic Nervous System is _______.

Involuntary

6

Rest

Parasympathetic

7

Fight or Flight

Sympathetic

8

Nerve cells which make up brain, brain stem, and spinal cord?

Neurons

9

Non-neuronal supporting cells that provide services for neurons.

Neuroglia

10

Three some types of neurons?

Afferent, Interneurons, and Efferent.

11

Sensory input from the periphery of the body and transporting it into the CNS.

Afferent

12

Connect neurons to other neurons. Function is to organize information received.

Interneurons

13

Transmit information to the extremities to signal muscles to produce movement.

Efferent

14

Stores K+ and neurotransmitters. Stores metabolites and forms scar or plaques after injury to neural tissue.

Astrocytes

15

Form myelin in CNS.

Oligodendrocytes

16

Remove cellular debris when injury or infection is present.

Microglia

17

Most basic functional unit of a nerve (also called a nerve cell).

Neuron

18

Receives impulses.

Dendrite

19

Impulses passed from dendrite to ____.

Cell Body

20

Special areas on cell bodies, which give rise to axons.

Axon Hillocks

21

Substance composed of Schwann cells which are wrapped concentrically around the axon in a jelly roll fashion.

Myelin

22

Outermost layer is connective tissue called _____.

Epineurium

23

In both CNS and PNS high area of myelinated axons make up the areas of ______.

White Matter

24

What is neurorehabilitation?

Impairments and functional limitations that have developed from a combination of the pathology or disease of the nervous system.

25

The myelin is interrupted at regular intervals.

Nodes of Ranvier

26

Is the jumping of the action potential from node to node.

Saltatory Conduction

27

Space between the axon of one neuron and the dendrite of the next neuron is called ________.

Synapses

28

Connection between neurons that allow different parts of the nervous system to communicate with and influence each other.

Synapse

29

Chemicals that transmit information across the synapse.

Neurotransmitters

30

Common Neurotransmitters

Acetylcholine (muscles), Glutamine, Dopamine, Norepinephrine

31

High concentration of myelinated fibers.

White Matter

32

______ matter is found in the brain and spinal cord.

White Matter

33

High concentration of unmyelinated structures.

Gray Matter

34

_____ matter composes the periphery of cerebral hemispheres and central portion of spinal cord.

Gray Matter

35

Covers entire surface of the cerebrum and is called the?

Cerebral Cortex