Prefinals examination (2019) by Keim Flashcards Preview

PHYSIOLOGY - 1st Year 1st Sem Comprehensive Exam > Prefinals examination (2019) by Keim > Flashcards

Flashcards in Prefinals examination (2019) by Keim Deck (28)
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1
Q

Which of the following is false?

A

Heart receives 10% of the resting CO.

2
Q

True or False:

Dissociation curve has sigmoidal shape because of the binding of 4 O2 molecules.

A

True

3
Q

CO2 in blood not quanititively important.

A

Carbonate

4
Q

Resistance in venous:

A

Veins

5
Q

In hemorrhage, sympathetic constriction of blood vessels is most pronounced in the ff. except:

A

Kidneys

6
Q

True in normal pulmonary circulation except:

A. High compliance
B. Low pressure
C. Low resistance
D. NOTA

A

D. NOTA

7
Q

First korotkoff sound is:

A

Systolic pressure

8
Q

Bohr effects shifts the Hb-O2 dissociation curve to the right.

A

Respiratory acidosis

9
Q

Brain lacks lymphatic vessels.

A

True

10
Q

Transport of oxygen and CO2 in the blood.

A

100-fold higher affinity for 2,3-DPG deoxygenated blood.

11
Q

Dissociation curve of fetal Hb binding with 2,3-DPG compared to adult Hb

A

Shift to the left

12
Q

Binding of O2 to Fe2+, heme changes from dome shaped to

A

Planar, downward

13
Q

Ventilation and perfusion in the lungs

A

Ventilated but not perfused, physiologic dead space

14
Q

Most rostral part of VRG

A

Botzinger complex

15
Q

Has pneumotaxic center that prevents apneusis

A

Rostral Pons

16
Q

Contains both inspiratory and expiratory RRNs

A

VRG

17
Q

Maximal, brief inspiratory efforts separated by long periods of expiration

A

gasping

18
Q

Breathe properly when awake, respiratory failure when asleep

A

Ondine’s curse

19
Q

Coordination with complex non ventilatory behaviors

A

Vomiting, yawning, chewing, swallowing, sucking, defecating, grunting

20
Q

Does not cause hypertension

A

Hypoaldosteronism

21
Q

False about hypertension:

A

primary hypertension has one definite identifiable cause

22
Q

True or False: Extracellular increased in hydrogen causes intracellular hypokalemia

A

True

23
Q

In the absence of other buffers, doubling the bicarbonate will result to :

A

rise in pH by 0.3

24
Q

Fraction of inspired oxygen:

A

21%

25
Q

Which can decrease cardiac output?

A

increased end systolic volume

26
Q

AV delay

A

0.12sec

27
Q

Acid extruders

A

NBCN1 and NHE1

28
Q

Acid loader:

A

AE2