Practical #1

Question 1

Describe the function of an Astrocyte

Answer 1

stimulate capilaries in the brain to form the blood-brain barrier

Question 2

Describe the function of an Ependymal Cell

Answer 2

line the ventricles of the brain and secrete CSF

Question 3

Describe the function of an Oligondendrocyte

Answer 3

increase the speed of neural transmission

Question 4

Describe the function of a Microglial Cell

Answer 4

Brains immunocompetent cells

Question 5

Describe the function of a Neurolemmocyte

Answer 5

inscrease transmission speed of the neuron

Question 6

The Nucleus is found in what specific part of the Neuron?

Answer 6

Cell body/soma

Question 7

What are the 3 main parts of a Neuron?

Answer 7

Axon

Dendrite

Neve Cell Body (neurosoma)

Question 8

What kind of Neuron has a soma with a dendrite on one side and an axon on the other?

Answer 8

Bipolar Neuron

Question 9

What kind of Neuron has multiple dendrites on one side, and an axon on the other?

Answer 9

Multipolar Neuron

Question 10

Myelin is made up of what?

Answer 10

lipoprotein

Question 11

What is the function of Neurons?

Answer 11

transmit signals

Question 12

What is the function of Neuroglia?

Answer 12

assist transmission

Question 13

Answer 13

1. Dendrite
2. Neuron Cell Body (soma)
3. Nucleus
4. Myelin Sheath (individual=Schwann Cells)

Question 14

What are the 3 types of Neurons?

Answer 14

Multipolar

Bipolar

Unipolar

Question 15

Pyramidal Cells

Answer 15

Cerebral cortex of the brain, amygdala, and hippocampus

extensive dendritic branches

cognition

Question 16

Purkinje Cells

Answer 16

Occure in grey matter of cerebellum

larger extensive dendrites (than pyramidal cells)

role: largley an inhibitor

Question 17

What “landmark” goes from the front of the brain, to the back, down the middle and seperates the two hemispheres?

Answer 17

Longitudinal Fissure

Question 18

what are the Two main classes of senses?

Answer 18

General Senses (somesthetic)

Special Senses

Question 19

What is Punctuate Distribution?

Answer 19

Uneven distribution of sense receptors throughout the body

Question 20

What are the types of Modalities?

Answer 20

light

heat

sound

pressure

specific chemicals

Question 21

What are photoreceptors?

Answer 21

detect light

Question 22

what are Thermoreceptors?

Answer 22

detect changes in temperature

Question 23

what are Proprioceptors?

Answer 23

detect changes in position of the body and in tension

Question 24

what are Mechanoreceptors?

Answer 24

receptors that are receptive to mechanical stimuli (touch, hearing)

Question 25

What are Baroreceptors?

Answer 25

respond the changes in blood pressure

Question 26

what are Chemoreceptors?

Answer 26

respond to changes in the chemical environment

Question 27

what types of receptor is responisve to extremely hot sensations?

Answer 27

Nocireceptors

Question 28

What responds to light touch sensations?

Answer 28

Meissner’s Corpuscles

Question 29

What is the sensation called when you have pain in one are of the body, but you feel it in another area?

Answer 29

Referred Pain

Question 30

What are the primary tastes?

Answer 30

Sweet

Sour

Salty

Bitter

Umami

Question 31

What region of the brain is receptive to smell stimuli?

Answer 31

Olfactory Epithelium