Chapter 15 Part 1 Flashcards Preview

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Flashcards in Chapter 15 Part 1 Deck (29):
1

Deals with functions and disorders of nervous system

Neurology

2

Brain and spinal cord

Central nervous system (CNS)

3

Connects CNS to effectors cranial and spinal nerves

Peripheral nervous system (PNS)

4

Bands of axons in PNS

Nerves

5

Nerves emerge from brain and spinal cord

Cranial and spinal

6

Groups of cell body in PNS

Ganglia

7

Sensory receptors

Monitor simuli

8

Processes sensory information

Integrative function

9

Carries information from CNS to effectors

Motor function

10

Sensory CNS carries information from CNS- motor portion carries information to skeletal muscles from CNS

Somatic nervous system (voluntary)

11

Sensory portion carries information from smooth cardiac muscles and glands to CNS
-motor portion carries information to smooth cardiac muscle and glands from CNS and consists of sympathetic and parasympathetic portion

Accotomic nervous system (involuntary)

12

Reduces emotional stress and quiet sympathetic division

Massage

13

Input portion

Dendrites

14

Contains nucleus and organelles such ribosomes,lysosomes and rough ER

Cell body

15

Output portion conducts nerve impulses

Axon

16

Moves materials in one direction; from cell body to axon

Axon transports slow

17

Moves materials in both directions to and from cell body

Axons transports fast

18

Structurally classified by number of processes and inclue -multipolar ; greater then 2 processes -bipolar- 2 processes -unipolar 1 process

Neuron types

19

Regulate homeostasis

Nervous and endocrine systems

20

Myelin sheath insulates axon increasing energy effiency and conduction speed

Mylenation

21

Myelin sheath gaps

Nodes of ranvier

22

Progressive automune disease that destroy myelin sheath of neurons -short circuits nerve impulses causing muscle weakness

Multiple scolorosis

23

Smaller and more numerous then neurons

Neurgolia

24

Produce myelin sheath around axons of PNS

Schwann cells (neuralgia PNS )

25

Supportive cells

Staelite cells

26

Form blood brain barrier

Astrocytes (neurlogia CNS)

27

Phagocytic cells

Merligia ( neurlogia CNS)

28

Produce myelin sheath around axons of CNS

Oligodendrocytes

29

Form cerobrospinal fluid (CSF)

Ependymal cells (neurlogia CNS)