Question

1. The function of the chordae tendae is to

A. Aide in the contration of the atriums

B. Aide in the action potentials of the atrial contractions

C. Regulate the opening and closing of the semi-lunar values

D. Regulate opening and closing of the tricuspid and bicuspid valves

2. De-oxygenated blood flows to the lungs from the right ventricle past this valve ______ and through these blood vessels _________

A. Mitral valve/ Pulmonary veins

B. Tricuspid valve/ Inveferior vena cava

  C. Pulmonary semi-lunar/ Pulmonary veins

D. Pulmonary semi-lunar valve/ Pulmonary arteries

3. This hormone is released when blood pressure becomes too HIGH, it functions to override all other hormones that function to raise blood pressure

A. Aldosterone

B. EPO

C. ANP

D. ADH

Answer 1

Question No.1

Answer :- C.Regulate opening and closing of the tricuspid and bicuspid valves.

Explanation :The chordinae tendineae connect to the papillary muscles and Regulate the opening and closing of the tricuspid and bicuspid valves ( Atrioventricular valve ).Cordinae tendinaea is also responsible for pulling the walls of the ventricles inward during contraction.

Question No.2

Answer :- D.Pulmonary semi-lunar valve/ Pulmonary arteries

Explanation : Inferior and superior Venacava transfer deoxygenated blood in the Right atrium. Pulmonary arteries transfer deoxygenated blood from right ventricle to the lungs through the pulmonary arteries where blood gets oxygenated and then transfer into left atria through the pulmonary vein .

Question No.3

Answer :- ANP

Explanation : ANP refers to Atrial Natriuretic Peptide hormone secreted by the cardiac muscle particularly by the atria that act as powerful vasodilaters , promotes salt & water excretion result is lower blood pressure...Thanks dear student