chapter 37 connect Flashcards Preview

Biology 1201: Organisms and Diversity > chapter 37 connect > Flashcards

Flashcards in chapter 37 connect Deck (27):
1

dentrite

the part of the neuron that sends signals toward the cell body

2

in myelinated axons, gated channels only open at nodes of Ranvier resulting in what conduction?

saltatory

3

3 main parts of a neuron

axon, cell body, and dentrite

4

learning

the usage of memories demonstrates that this has happened

5

most drugs available to Alzheimer disease (AD) work by

increasing acetylcholine

6

components of the peripheral nervous system

ganglia and nerves

7

axon

the elongated portion of the neuron that conducts nerve impulses

8

describe an ischemic stroke

blood supply to the brain that is disrupted

9

nervous system includes which main parts

the brain and the spinal cord

10

components of autonomic sytme divisions

sympathetic and parasympathetic

11

frontal

motor control and reasoning

12

parietal

sensory reception

13

temporal

auditory input

14

occipital

visual information

15

repolarization

happens after an action potential occurs, the membrane potential across a neuron cell membrane returns to -70 mV.

16

synapse

the area where a presynaptic neuron comes into close proximity with a photosynthetic neuron

17

motor (efferent) neuron

a nerve cell that carries impulses away from the central nervous system

18

ependymal cells

a type of neuroglia that surrounds the ventricles of the brain, where they produce cerebrospinal fluid

19

what is surrounded by meninges

brain and spinal cord

20

norepinephrine

dreaming and mood

21

dopamine

emotions and learning

22

serotonin

thermoreguialtion and sleeping

23

acetylcholine

excites skeletal muscle

24

refractory period

a nerve impulse travels one way down and axon due to the sodium channels being open during this period

25

nodes of Ranvier

gaps in the myelin sheath

26

components of invertebrates nervous system

ganglia, ventral nerve cord, brain

27

dorsal root ganglion

the mass of sensory neuron cell bodies located in the dorsal root of a spinal nerve