PATHOLOGY

PATHOLOGY MCQ

BLOOD VESSELS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
During systole the heart is
A
stopped
B
resting
C
pumping
D
defibrillating
Explanation: 

Detailed explanation-1: -Systole is when the heart muscle contracts. When the heart contracts, it pushes the blood out of the heart and into the large blood vessels of the circulatory system. From here, the blood goes to all of the organs and tissues of the body. During systole, a person’s blood pressure increases.

Detailed explanation-2: -Each cardiac cycle has a diastolic phase (also called diastole) where the heart chamber is in a state of relaxation and fills with blood that receives from the veins and a systolic phase (also called systole) where the heart chambers are contracting and pumps the blood towards the periphery via the arteries.

Detailed explanation-3: -Heartbeat Phases Systole is the contraction phase of the heartbeat. During this phase, the right and left ventricles contract to pump blood to the lungs and body. Blood pressure measures pressure during both ventricular contraction (systolic pressure) and during relaxation (diastolic pressure).

Detailed explanation-4: -In most tissues, blood flow peaks during ventricular systole due to increased pressure in the aorta and its distal branches. Bloodflow through the coronary vessels, however, is seemingly paradoxical and peaks during ventricular diastole.

There is 1 question to complete.