MRCP UK EXAMINATIONS

CARDIOLOGY

MITRAL STENOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When the right ventricle is full, the tricuspid valve closes and keeps blood flow from going ____ ?
A
going sideways into right atrium
B
going backward into right atrium
C
going forward into right atrium
D
going backward into left atrium
Explanation: 

Detailed explanation-1: -Your tricuspid valve opens to let blood travel from your right atrium to your right ventricle. When your right ventricle is full it squeezes, which closes your tricuspid valve and opens your pulmonary valve. Blood flows through your pulmonary artery to your lungs, where it gets oxygen.

Detailed explanation-2: -Blood flows from the right atrium into the right ventricle through the tricuspid valve. When the ventricle is full, the tricuspid valve shuts to prevent blood flowing backwards into the atrium. Blood leaves the heart through the pulmonic valve into the pulmonary artery and flows to the lungs.

Detailed explanation-3: -When the left ventricle contracts, the right ventricle also contracts. This causes the pulmonary valve to open and the tricuspid valve to close. Blood flows out from the right ventricle to the lungs before it is returned to the left atrium as fresh, oxygenated blood.

Detailed explanation-4: -The tricuspid valve separates the right upper chamber (the right atrium) and the right lower chamber (the right ventricle) of the heart. In a normal heart, the tricuspid valve closes completely when the right ventricle squeezes to push blood to the lungs, to prevent blood from going backward.

There is 1 question to complete.