MulCho 1st exam

Question 1

Type of coronary artery disease involving only partial obstruction

Answer 1

ANGINA PECTORIS

Question 2

Transports ferric ions in the blood

Answer 2

TRANSFERRIN

Question 3

Measure of homogeneity of RBC population size

Answer 3

RED BLOOD CELL DISTRIBUTION WIDTH (RDW)

Question 4

Hemolytic disease of the newborn

Answer 4

ERYTHROBLASTOSIS FETALIS

Question 5

Abnormal type of Hb in alpha thalassemia if 3 genes are defective

Answer 5

Hb H

Question 6

Inhibits platelet adhesion & release

Answer 6

PROSTACYCLIN

Question 7

Most common inherited bleeding disorder

Answer 7

von WILLEBRAND DISEASE

Question 8

R atrium receives blood from how many veins

Answer 8

3

Question 9

Blood from R atrium to R ventricle

Answer 9

TRICUSPID VALVE

Question 10

Raised bundles of cardiac muscles

Answer 10

TRABECULAE CARNAE

Question 11

Blood from R ventricle to lungs

Answer 11

PULMONARY VALVE

Question 12

Which is true regarding coronary arteries

Answer 12

A. Anterior interventricular branch - supplies to walls of both ventricles
B. Circumflex artery - supplies to walls of L atrium & ventricle
C. Posterior interventricular branch - supplies walls of both ventricles
D. Marginal artery - supplies to myocardium of R ventricle

ANO SAGOT DITO

Question 13

Heart sound during heart cycle due to blood turbulence

Answer 13

S4

Question 14

Average stroke volume

Answer 14

70 mL/ beat

Question 15

True regarding factors affecting stroke volume

Preload: degree of stretch on the heart before it contracts
Myocardial contractility: forcefulness of contraction of individual muscle fibers
Afterload: pressure that must be exceeded before ejection of blood from ventricles can occur

Answer 15

AOTA

Question 16

Not an example of negative inotropic

A. digitalis
B. ↓ contractility
C. anoxia
D. ↑K+ in ECF
E. acidosis

Answer 16

A. digitalis

Question 17

Type of capillary, plasma membrane of endothelial cells; forms a tube interrupted by intercellular clefts

Answer 17

CONTINUOUS CAPILLARIES

Question 18

For large insoluble molecules that cannot cross capillary walls

Answer 18

TRANSCYTOSIS

Question 19

Velocity of blood flow from arteries to capillaries

Answer 19

DECREASES HAPPINESS

Question 20

increase Na and water reabsorption

Answer 20

ALDOSTERONE

Question 21

2 most impt baroreceptor reflexes

Answer 21

AORTIC & CAROTID SINUS REFLEXES

Question 22

Vasodilating substances

Answer 22

K+, H+, Lactic acid, Adenosine, NO, Kinins, Histamines

Question 23

Transfer oxygenated blood from vertebral arteries to circle of Willis of brain

Answer 23

BASILAR ARTERY

Question 24

Transfer oxygenated blood from common carotid arteries to circle of Willis

Answer 24

INTERNAL CAROTID ARTERIES

Question 25

Transfer oxygenated blood from incoming arteries to deep internal arteries of brain

Answer 25

CIRCLE OF WILLIS

Question 26

External boundary between atria and ventricles

Answer 26

Coronary sulcus

Question 27

Which of the following would not increase stroke volume ``` A. ↑ Ca in interstitial fluid B. Epinephrine C. ↑ K in interstitial fluid D. ↑ in venous return E. slow resting heart rate ```

Answer 27

C. ↑ K in interstitial fluid