PSL Exam 2 Flashcards Preview

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Flashcards in PSL Exam 2 Deck (35)
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1
Q

Whhat is being sloughed off during desqamation?

A

Stratum corneum cells

2
Q

People with dark skin have

A

High tyrosinase activity and high melanin production

3
Q

Albinism is what type of disease?

A

Homozygous recessive

4
Q

What are freckles more visable with pure UV light?

A

Melanin reflecgs UV light

5
Q

What cell is most abundent in the brain?

A

Glial cell

6
Q

Depolarization is

A

When the transmembrane potential becomes more positive than the resting membrane potential

7
Q

Kinesib facilitates

A

Transport of vesicles to the positive end of the cell

8
Q

What would cause depolarization

A

Influx of sodium into the cell

9
Q

What is a node of reanvier

A

Axolemma

10
Q

What ion is the current in your axons?

A

K+

11
Q

What are gap junctions?

A

Comminicating channels connecting 2 cells cytoplasms

12
Q

The NMDA receptor is

A

Ligand-gaged calcium channel and a voltage gated calcium channel

13
Q

What kind of neuron trasmit signals to the brain for your special senses

A

Bipolar

14
Q

Whats the name of the cells that line the ventricles of the brain and the central canal of the spinal cord

A

Ependymal cells

15
Q

Which of the following is most responsible for establishing a cells resting membrane potential

A

K+ leak channels

16
Q

There is a higher concentration of K+ in ECF than in ICF

A

False

17
Q

The sodium potassium pump pumps 3 sodium out and 2 potassium in

A

True

18
Q

There is a lower consentration of sodium in the ICF than ECF

A

True

19
Q

There is a lower concentration of cloride in the ICF than in ECF

A

True

20
Q

Part of junctional complex

A

Demosomes, tight junction, adhering junction

21
Q

The epidermis is avascular

A

True

22
Q

Thin skin lacks lucidum

A

True

23
Q

The hypodermis is a layer of skin visceral to the dermis

A

False

24
Q

Stratum spinosum is parietal to basale

A

True

25
Q

Meissners and pacinian corpuscles are tactile organs

A

True

26
Q

Proper order of sequence

A

Cholecalciferol–calcidol–calcitriol (active Vit D)

27
Q

The glial cells of the CNS responsible for the formation of the blood brain barrier

A

Astrocytes

28
Q

Ependymal cells to venticles

A

Correct

29
Q

Olifodendrocytes to pedicels

A

Incorrect

30
Q

Schwann cells to PNS myelin

A

Correct

31
Q

Astrocyes to most abundent cell in the brain

A

Correct

32
Q

Microglial cells to phagocytosis

A

Correct

33
Q

Properties of neurons

A

Excitablility, conductivity, secretion

34
Q

Components of a chemical synapse

A

Ligand gated channels, presynaptix knob, synaptic cleft

35
Q

Where is thick skin found?

A

Palms of hands and soles of feet