Heart Index – P

A B C D E F H I L M N O P R S T V
Palpitations

Sensation of an irregular heartbeat; it may be felt as a skipped heartbeat or a momentary cessation.

Pericardium

A membranous sac which encloses the heart.

Platelets

Minute particles present in the blood of vertebrates and involved in the clotting of blood.

Polyunsaturated fat

A type of animal and vegetable fat usually found in foods from plants and fish, which helps decrease LDL (bad) cholesterol. It is also less likely to be converted into cholesterol in the body.

Progestin

A group of steroid hormones with progesterone-like activity to prepare and maintain the uterus in females for pregnancy.

Pulmonary arteries

The arteries that carry deoxygenated blood from the right side of the heart to the lungs for oxygenation.

Pulmonary stenosis

Abnormal narrowing of the pulmonary valve. It may arise as a congenital heart defect.

Pulmonary valve

The valve between the pulmonary artery and the right ventricle.

Pulmonary veins

The veins that carry oxygen-rich blood from the lungs back to the left side of the heart.