BN507 FINAL EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED

BN507 FINAL EXAM QUESTIONS AND ANSWERS WITH

COMPLETE SOLUTIONS VERIFIED


function of haemoglobin

transport oxygen in the body

breakdown of red blood cells

1. globin chain and heme pigment separate

2. iron atom removed from heme

3. heme converted to bilirubin

epicardium

outermost layer of the heart wall

cardiac development and regeneration

myocaridum

middle layer of the heart wall

composed of cardiac muscle tissue

facilitates contraction and relaxation of the heart

endocardium

innermost layer of the heart wall

ensures blood flow throughout the heart

cardiac muscle cells

striated

branched

, contain many mitochondria

under involuntary control

pulmonary circuit

carries deoxygenated blood to the lungs then back to the heart

systemic circuit

carries oxygenated blood from aorta to the tissues of the body

AV node

delays the passage of electrical impulses to the ventricles

Right and Left bundle branches

aids in the conduction of electrical impulses towards the apex of the heart

AV bundle

receives electrical signals from the AV node

SA node

initiates heart beat and determines heat rate

steps of cardiac cycle

1. atrial systole

2. early ventricular systole

3. late ventricular systole

4. early ventricular diastole

5. late ventricular diastole

cardiac output

CO = HR x SV

blood pressure