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

Which of the following is false?

Heart receives 10% of the resting CO.

2

True or False:

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

True

3

CO2 in blood not quanititively important.

Carbonate

4

Resistance in venous:

Veins

5

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

Kidneys

6

True in normal pulmonary circulation except:

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

D. NOTA

7

First korotkoff sound is:

Systolic pressure

8

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

Respiratory acidosis

9

Brain lacks lymphatic vessels.

True

10

Transport of oxygen and CO2 in the blood.

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

11

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

Shift to the left

12

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

Planar, downward

13

Ventilation and perfusion in the lungs

Ventilated but not perfused, physiologic dead space

14

Most rostral part of VRG

Botzinger complex

15

Has pneumotaxic center that prevents apneusis

Rostral Pons

16

Contains both inspiratory and expiratory RRNs

VRG

17

Maximal, brief inspiratory efforts separated by long periods of expiration

gasping

18

Breathe properly when awake, respiratory failure when asleep

Ondine’s curse

19

Coordination with complex non ventilatory behaviors

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

20

Does not cause hypertension

Hypoaldosteronism

21

False about hypertension:

primary hypertension has one definite identifiable cause

22

True or False: Extracellular increased in hydrogen causes intracellular hypokalemia

True

23

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

rise in pH by 0.3

24

Fraction of inspired oxygen:

21%

25

Which can decrease cardiac output?

increased end systolic volume

26

AV delay

0.12sec

27

Acid extruders

NBCN1 and NHE1

28

Acid loader:

AE2