Key Terms Flashcards Preview

Nervous System key terms > Key Terms > Flashcards

Flashcards in Key Terms Deck (21):
0

Afferent nerves. Must know

Sensory nerves that responsible for detecting sensory info from environment and inside body and brining it to the CNS for interpretation

1

Autonomic nervous system. Must know

Carries mess to brain and spinal cord. Sensory nerve. Controls involuntary body function of muscles glands and internal organs

2

central nervous system ( CNS)

Consist of brain and spinal cord

3

Cerebrospinal fluid (CSF)

Fluid in the subarachnoid space of the meninges and central canal of spinal cord

4

Efferent nerves. Must know

Motor nerves. Carries message away from the brain and spinal cord

5

Meninges. Must know

Membranes that protect the brain and spinal cord

6

Neurotransmitter

A chemical within the vesicles of synaptic knob that is released into the post synaptic structure when nerve impulses reaches the synaptic knob

7

Parethesias

Abnormal sensation burning and tingling

8

Peripheral nervous system (PNS) Must know

Consist of nerves that branches off the central nervous system. (CNS). Cranial spinal and autonomic nerves

9

Plexus. Must know

Large interlacing network of nerves. Includes cervical brachial lumbosacral

10

Sympathetic division

Division of autonomic nerve system (ANS) prepares organs for fight or flight. Stressful situations

11

Parasympathetic division

Division of the (ANS) prepares body for rest and digestion

12

Cell body. Must know

Part of a nerve that contains the nucleus

13

Ganglion. Must know

Collection of nerve cell bodies in the PNS

14

Hypothalamus. Must know

Portion of the brain beneath the thalamus. Controls sleep appetite body temp. And secretions from pituitary gland

15

Motor nerve. Must know

Efferent nerve

16

Myelin sheath. Must know

Covering of white fatty tissues that surrounds and insulate the axon of a nerve cell. Myelin speeds impulse conduction along axons

17

Neuron. Must know

Nerve cell that carries impulses throughout the body. Parenchyma of the nervous system

18

Parasympathetic nerves. Must know

Involuntary autonomic nerves that regulate normal body function such as heart rate breathing and muscles of gastrointestinal tract

19

Receptor. Must know

Organ that receives a nervous stimulus and passes it on to affrent nerves. Skin ears eyes and taste buds are receptors

20

Vagus nerve. Must know

10th cranial nerve. Its branches reach to the larynx trachea bronchi lungs aorta esophagus and stomach