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Human physiology > Random Q's > Flashcards

Random Q's Flashcards

1
Q

Write down Fick’s law of diffusion

A

V gas = A/T x D x (P1 - P2)

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2
Q 
What is not a component of blood?
Plasma 
Hematocrit 
Mitochondria 
Buffy coat
A

Mitochondria

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3
Q

What variable does not effect the oxyhaemoglobin dissociation curve?

Temperature
Ph
PCO2
Nitrogen

A

Nitrogen

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4
Q

What is the average internal body temperature?

A

36.5 - 37.5

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5
Q

Where is the thermoregulatory centre in the brain?

A

Hypothalamus

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6
Q

What is the term for when the internal body temperature goes below 35 degrees?

A

Hypothermia

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7
Q 
What is not involved in the conducting zone?
Trachea 
Alveolar sacs 
Bronchial tree 
Terminal bronchioles
A

Alveolar sacs

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8
Q

What happens to the diaphragm during inhalation?

A

Flattens and elevates dome when relaxed

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9
Q 
Which of these is not a sensory neuron?
A. Baroreceptor 
B. Chemoreceptor 
C. Proprioceptor 
D. Efferentreceptor
A

Efferentreceptor

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10
Q

What happens when the voltage gated Na+ open (-55mV) and sodium floods in?

A

Depolarisation

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11
Q

Where is the golgi apparatus located?

A

In the cytoplasm

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12
Q

What is the golgi apparatus?

A

The Golgi apparatus receives proteins and lipids (fats) from the rough endoplasmic reticulum. It modifies some of them and sorts, concentrates and packs them into sealed droplets called vesicles.

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13
Q

Approximately how many nuclear pores does the nucleus contain?

A

Roughly 3000

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14
Q

What type of cell does NOT have a membrane bound nucleus?

A. Erythrocyte

B. Eukaryotic

C. Monocyte

D. Prokaryote

A

Prokaryote

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15
Q

How many genes do humans have?

A

25,000

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16
Q

What is the role of the smooth endoplasmic reticulum?

A

Synthesis of lipids and steroids

17
Q

What is convection?

A

Heat transfer form air to water

18
Q

What pH do lysosomes work best at?

A

5

19
Q

What are the three kinds of cytoskeleton filaments?

A

Microfilaments
Intermediate filaments
Microtubules

20
Q

What does simple diffusion allow passage of?

A

Only non polar molecules down the conc gradient

21
Q

What is the resting potential of skeletal muscle?

A

-70mV

22
Q

Which of these is not a nerve fibre group?
a) A-Beta

b) D- Delta
c) C-Nerve fibres
d) A-Delta

A

D-Delta

23
Q

Which is not a membrane ion channel?
a) Leakage Channels

b) Membrane Gate Channels
c) Voltage-gated Channels
d) Ligand-Gated Channels

A

Membrane gate channels

24
Q

What is the action potential progation speed of A fibres?

A

130 m/s

25
Q

What is the formula for partial pressure?

A

PP = % Concentration x total pressure of

mixture

26
Q

What is the percentrage of protein in blood plasma?

A

7%

27
Q

What is the percentage of bicarbonate ions transported in the blood?

A

70%

28
Q

Which factor does not affect haemoglobin O2 affinity?

a) Acidity
b) Blood flow
c) Temperature
d) 2,3, BPG

A

Blood flow

Human physiology (11 decks)

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