chapter 37 connect Flashcards Preview

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

Flashcards in chapter 37 connect Deck (27)
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1
Q

dentrite

A

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

2
Q

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

A

saltatory

3
Q

3 main parts of a neuron

A

axon, cell body, and dentrite

4
Q

learning

A

the usage of memories demonstrates that this has happened

5
Q

most drugs available to Alzheimer disease (AD) work by

A

increasing acetylcholine

6
Q

components of the peripheral nervous system

A

ganglia and nerves

7
Q

axon

A

the elongated portion of the neuron that conducts nerve impulses

8
Q

describe an ischemic stroke

A

blood supply to the brain that is disrupted

9
Q

nervous system includes which main parts

A

the brain and the spinal cord

10
Q

components of autonomic sytme divisions

A

sympathetic and parasympathetic

11
Q

frontal

A

motor control and reasoning

12
Q

parietal

A

sensory reception

13
Q

temporal

A

auditory input

14
Q

occipital

A

visual information

15
Q

repolarization

A

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

16
Q

synapse

A

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

17
Q

motor (efferent) neuron

A

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

18
Q

ependymal cells

A

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

19
Q

what is surrounded by meninges

A

brain and spinal cord

20
Q

norepinephrine

A

dreaming and mood

21
Q

dopamine

A

emotions and learning

22
Q

serotonin

A

thermoreguialtion and sleeping

23
Q

acetylcholine

A

excites skeletal muscle

24
Q

refractory period

A

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

25
Q

nodes of Ranvier

A

gaps in the myelin sheath

26
Q

components of invertebrates nervous system

A

ganglia, ventral nerve cord, brain

27
Q

dorsal root ganglion

A

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