Basic Neuro Flashcards Preview

Neuro > Basic Neuro > Flashcards

Flashcards in Basic Neuro Deck (33)
Loading flashcards...
1

sensory/afferent neurons are what?

sensors that are sensitive to light, sound, touch, temperature, smell, and chemical input

Afferent neurons= receive incoming info

2

motor/efferent neurons are what?

actors that receive from other cells, giving rise to muscle impulses and secretion of hormones

Efferent neuron= sending info out

3

interneurons are what?

connect one neuron to another and can notify motor neurons to move part of body that has detected dangerous sensory info

4

how many cells does human brain contain?

1.1 trillion

5

more than how many are neurons?

100 billion

6

neurotransmitters do what?

are released in the axon terminal at the synapse
assist in the regulation of brain's ability to control speech/language, motivation, pain, stress, personality, mood, attention, memory

7

what are 3 layers of meninges?

dura mater
arachnoid membrane
(subarachnoid space is between AM and PM)
pia mater

8

what are ventricles?

fluid filled cavities in the brain

9

name 4 ventricles

2 lateral
3rd
4th

10

where is CSF found?

within each ventricle, the choroid plexus produces CSF

11

what lobe is anterior to central sulcus?

frontal

12

what lobe is inferior to sylvian fissure?

temporal

13

what lobe is located between occipital and central sulcus?

parietal

14

what lobe is located at posterior part of brain?

occipital

15

what lobe is affected if you experience: loss of simple movement, loss of ability to spontaneously interact?

frontal

16

what lobe is affected if you experience: mood changes, inability to speak, perseveration

frontal

17

what lobe is affected if you experience: have prosopagnosia and logorrhea

temporal

18

what lobe is affected if you experience: diff. understanding spoken words, short term memory loss, increased aggressive behavior

temporal

19

what lobe is affected if you experience: an inability to attend to more than 1 object at a time, diff. drawing objects, and diff. knowing left from right?

parietal

20

what lobe is affected if you experience: unilateral neglect, diff. hand-eye coordination, and impaired perception of touch

parietal

21

what lobe is affected if you experience: visual field cuts, diff. identifying colors, word blindness

occipital

22

what lobe is affected if you experience: diff. reading and writing, diff. locating objects in environment

occipital

23

alexia, agraphia, word blindness, and dyscalculia are associated with what lobe?

parietal

24

Name and be able to label the parts of a neuron

dendrites, nucleus, cell body, myelin sheath, Node of Ranvier, Schwann cell, axon, axon terminal

25

how do neurons communicate?

neurons communicate via axons and dendrites...
dendrites receive stimuli from other neurons, axons send stimuli to other neurons, glands, and muscles

26

agnosia?

inability to imitate, copy, or recognize the significance of incoming sensory information in the absence of sensory deficit in the affected sensory modality

27

anosagnosia?

denial of deficits

28

What does the pyramidal system do?

directly activates and facilitates voluntary motor movement

29

what are the two nerve fiber tracts within the pyramidal system?

corticobulbar and corticospinal

30

corticobulbar tracts do what?

control voluntary speech movements