Prefinals examination (2019) by Keim

Question 1

Which of the following is false?

Answer 1

Heart receives 10% of the resting CO.

Question 2

True or False:

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

Answer 2

True

Question 3

CO2 in blood not quanititively important.

Answer 3

Carbonate

Question 4

Resistance in venous:

Answer 4

Veins

Question 5

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

Answer 5

Kidneys

Question 6

True in normal pulmonary circulation except:

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

Answer 6

D. NOTA

Question 7

First korotkoff sound is:

Answer 7

Systolic pressure

Question 8

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

Answer 8

Respiratory acidosis

Question 9

Brain lacks lymphatic vessels.

Answer 9

True

Question 10

Transport of oxygen and CO2 in the blood.

Answer 10

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

Question 11

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

Answer 11

Shift to the left

Question 12

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

Answer 12

Planar, downward

Question 13

Ventilation and perfusion in the lungs

Answer 13

Ventilated but not perfused, physiologic dead space

Question 14

Most rostral part of VRG

Answer 14

Botzinger complex

Question 15

Has pneumotaxic center that prevents apneusis

Answer 15

Rostral Pons

Question 16

Contains both inspiratory and expiratory RRNs

Answer 16

VRG

Question 17

Maximal, brief inspiratory efforts separated by long periods of expiration

Answer 17

gasping

Question 18

Breathe properly when awake, respiratory failure when asleep

Answer 18

Ondine’s curse

Question 19

Coordination with complex non ventilatory behaviors

Answer 19

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

Question 20

Does not cause hypertension

Answer 20

Hypoaldosteronism

Question 21

False about hypertension:

Answer 21

primary hypertension has one definite identifiable cause

Question 22

True or False: Extracellular increased in hydrogen causes intracellular hypokalemia

Answer 22

True

Question 23

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

Answer 23

rise in pH by 0.3

Question 24

Fraction of inspired oxygen:

Answer 24

21%

Question 25

Which can decrease cardiac output?

Answer 25

increased end systolic volume

Question 26

AV delay

Answer 26

0.12sec

Question 27

Acid extruders

Answer 27

NBCN1 and NHE1

Question 28

Acid loader:

Answer 28

AE2