heart

the organ that pumps blood through your body

muscle that pumps blood received from veins into arteries throughout the body. The heart is positioned in the chest behind the sternum (breastbone); in front of the trachea (windpipe), esophagus (tube connecting throat to stomach) and aorta (main artery in the body); and above the diaphragm (main muscle of breathing).

heart murmur

an unusual sound heard between heartbeats

extra swishing sound made by the heart when blood goes through it. Some cause no problems and others need to be treated medically or surgically.

heart rate

number of times your heart beats in a minute

 

hemangioma

an abnormal buildup of blood vessels on or under the surface of the skin

commonly called a "strawberry" or strawberry hemangioma by parents. It is a type of vascular birthmark that typically appear in the first few weeks after a baby is born, can grow rapidly during an infant's first year of life, and then typically goes away by the time the child is 5 to 8 years old.

hemoglobin

red blood cells that carry oxygen to body cells

hernia

when a part of the body (from the inside) pushes through a weak spot in the muscle or surrounding tissue

protrusion of an organ through a tissue that normally contains the organ

hind milk

breast milk produced at the end of a feeding. High in calories and fat.