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Flashcards in 10 - Nervous System Deck (148)
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1

The nervous system includes which two separate systems?

The CNS and the PNS

2

The autonomic nervous system is part of the _____

Peripheral nervous system

3

The study of the nervous system is called ______

Neurology

4

Neurotransmitters are ______

Chemical messengers

5

The two ends of a neuron are called the _____

Axon and the dendrite

6

The space between two cells is called the ______

Synapse

7

What is both a neurotransmitter and a hormone?

Dopamine

8

The myelin sheath is a layer of ____ surrounding the neuron.

Insulation

9

The two main types of cells in the nervous tissue are ______

Neurons and glial cells

10

___ is a natural opiate produced by the brain to diminish pain.

Endorphin

11

The only cells that send signals away from the cerebellum are _____

Purkinje cells

12

____ is damage to or destruction of a cell due to exhaustion or injury.

Chromatolysis

13

Paralysis affecting only one side of the body is referred to as ______

Hemiplegia

14

Transient ischemic attack is another term for _____

Mini-stroke

15

______ provide information about movement and position.

Proprioceptors

16

The functional unit of the nervous system.

Neurons

17

A component of a neuron that receives incoming nerve impulses.

Dendrite

18

A component of a neuron that carries nerve signals away from the body of the neuron.

Axon

19

Supporting cells that produce electrical insulation as well as other support functions.

Glial cells

20

Messages in the neurons are carried along with the help of chemicals called _________

Neurotransmitters

21

A neurotransmitter that propagates electrical impulses from one nerve cell to one another in the PNS.

Acetylcholine

22

A neurotransmitter involved in the regulation of sleep, body temperature and sensory perception but is also thought to have something to do with our moods.

Serotonin

23

Neurons that usually have a long dendrite and a short axon, and carry messages from sensory receptors to the CNS.

Afferent neurons

24

Neurons that have short dendrites and long axons and carry messages from the CNS to the muscles or glands.

Efferent neurons

25

Another term for afferent neuron.

Sensory neuron

26

Another term for efferent neuron.

Motor neuron

27

Specialized cells that react to chemical substances and relay information throughout the CNS.

Chemoreceptors

28

Specialized cells that respond to light on the retina of the eye.

Photoreceptors

29

Free nerve endings that respond to pain.

Nociceptors

30

Specialized cells that detect heat or cold.

Thermoceptors