Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Physiology > Top Hat > Flashcards

Top Hat Flashcards

1
Q

Which of the following statements is incorrect:
A. the epidermis is avascular
B. think skin lacks lucidum
C. the hypodermis is a layer of skin visceral to the dermis
stratum spinosum is parietal to stratum basale
Meissner’s and pacinian corpuscles are tactile organs

A

C. the hypodermis is a layer of skin visceral to the dermis

the hypodermis is not a layer of skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q 
All of the following are components of a junctional complex except:
A. desmosome
B. gap junction
C. tight junction
D. adhering junction
A

gap junction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

which of the following correlation is incorrect:
A. internal lining of the viscera - endoderm
B. sensory neurons - ectoderm
C. arrector pili muscle - mesoderm
dermis of the skin - ectoderm

A

dermis of the skin - ectoderm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which of the following statements is NOT true regarding ion gradients:
A. there is a higher concentration of K+ in the ECF than ICF
B. the Na+/K+ ATPase pumps 3 Na+ to the ECF for every 2 K+ to the ICF
C. there is a lower concentration of Na+ in the ICF than ECF
D. there is a lower concentration of Cl- in the ICF than ECF

A

A. there is a higher concentration of K+ in the ECF than ICF

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q 
Which of the following is most responsible for establishing a cell's resting membrane potential (RMP):
A. Na+/K+ pump
B. nucleic acids and cytosolic proteins
C. K+ leak channels
D. voltage-gated Na+ channels
A

C. K+ leak channels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which of the following statements is correct?
A. benign tumors are not cancerous
B. skin color is primarily the result of quantity, rate of synthesis and rate of degradation of melanin in keratinocytes
C. UVA penetrates deeper in skin and therefore is responsible for direct DNA damage
D. a “beauty mark” is clinically known as a verruca

A

A. benign tumors are not cancerous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q 
Which of the following is the most metastatic variety of skin cancer?
A. basal cell carcinoma
B. squamous cell carcinoma
C. astrocytoma
D. melanoma
A

D. melanoma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

which of the following sequences is in the proper order?
A. cholecalciferol -> calcidiol -> active vitamin D
B. calcidiol -> calcitriol -> active vitamin D
C. cholecalciferol -> calcidol -> calcitriol
D. calcitriol -> cholesterol -> cholecalciferol

A

A. cholecalciferol -> calcidiol -> active vitamin D

C. cholecalciferol -> calcidiol -> calcitriol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

which of the following associations is incorrect:
A. yellow sclera (white of the eye): jaundice
B. redness of skin due to inflammation: dermatitis
C. cyanosis: blue skin hue due to poor oxygenation of blood
D. chronic (long-term) skin redness: erythema

A

D. chronic (long-term) skin redness: erythema

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q 
the glial cells of the CNS responsible for the formation of the blood brain barrier are:
A. ependymal cells
B. astrocytes
C. oligodendrocytes
D. schwann cells
E. satellite cells
A

B. astrocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which of the following associations is incorrect:
A. ependymal cells; ventricles
B. oligodendrocytes; pedicels
C. schwann cells; PNS myelin
D. astrocytes; most abundant cell in the brain
microglial cells; phagocytosis

A

B. oligodendrocytes; pedicels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q 
All of the following are properties of neurons except?
A. excitability
B. conductivity
C. mobility
D. secretion
A

C. mobility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q 
Graded potentials occur in all the following regions except:
A. initial segment of the axon
B. dendrites
C. terminal knobs
D. soma
E. a and c
F. c and d
A

A. initial segment of the axon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q 
All of the following are components of a chemical synapse except:
A. ligand-gated channels
B. nexus
C. presynaptic knob
D. synaptic cleft
A

B. nexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q 
Which of the following is the most abundant cell in the brain?
A. neuron
B. glial cell (support cell)
C. fibroblast
D. epithelial cell
A

B. glial cell (support cell)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q 
The stoichiometry of the Na+/K+ ATPase is:
A. 2 Na+ out: 3 K+ in
B. 3 Na+ out : 2 K+ in
C. 3 Na + out : 3 K+ in
D. 2 Na+ out : 2 K+ in
A

B. 3 Na+ out : 2 K+ in

17
Q

Which of the following would cause a depolarization?
A. an efflux of calcium out of the cell
B. an efflux of potassium out of the cell
C. an influx of sodium into the cell
D. an influx of chloride into the cell

A

C. an influx of sodium into the cell

18
Q 
What are the ions being pushed to cause an action potential?
A. Na+
B. K+
C. Ca++
D. Cl-
A

B. K+

19
Q 
what ion is the "current" flowing in your axons?
A. Na+
B. K+
C. Ca++
D. Cl-
A

B. K+

20
Q 
The NMDA receptor is a:
A. ligand-gated Ca++ channel
B. a voltage-gated Ca++ channel
C. a mechanically gated Ca++ channel
D. a and b
E. b and c
A

D. a and b

21
Q 
What kind of neurons transmit signals to the brain for your special senses?
A. unipolar
B. bipolar
C. multipolar
D. interneurons
A

B. bipolar

22
Q 
What's the name of the cells that line the ventricles of the brain and the central canal of the spinal cord.
A. astrocytes
B. microglial cells
C. ependymal cells
D. satellite cells
A

C. ependymal cells

23
Q 
When do you consider someone to be officially dead?
A. no brain activity
B. no heart beat
C. not breathing
D. not smiling
A

A. no brain activity

24
Q 
Aggregation of nerve cell bodies in he PNS are called?
A. nuclei
B. ganglia
C. white matter
D. arachnoid mater
A

B. ganglia

25
Q 
Which of the following are examples of epidermal tactile receptors?
A. pacinian corpuscles
B. Meissner's corpuscles
C. merkel cells
D. a and b
E. a, b and c
A

C. merkel cells

Physiology (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions