Enrichment

Home » Glossary of Heart-Related Terms

Glossary of Heart-Related Terms

aorta
the main artery that carries blood away from the heart
artery
one of the tubular vessels that carry blood away from the heart
atrium
one of the hollow cavities of the heart
blood
the liquid that circulates in the heart, arteries, and veins
blood type
classification of blood according to its chemical composition
caffeine
a stimulating chemical found especially in coffee and tea
calorie
a unit for measuring food's ability to produce heat and energy
capillary
any of the tiny, thin-walled tubes that carry blood between arteries and veins
carbohydrate
any of the various compounds of carbon, oxygen, and hydrogen including the sugars and starches
clotting of blood
formation of a sticky mass to stop the flow of blood
diabetes
an abnormal state of health marked by insulin deficiency and the urine and blood contain excess sugar
diet
the food and drink regularly consumed
digestion
the conversion of food into a form that can be absorbed by the body
drug
a substance used as or in medicine
excretion
separation and elimination of wastes from the body especially in urine
exercise
physical exertion made for the sake of health
fat
any of the chemical esters that occur naturally and are not soluble in water
fetus
an unborn vertebrate especially after its basic structure is formed
fibrin
a white, insoluble protein formed by the chemical fibrinogen to form blood clots
insulin
a hormone produced by the pancreas essential for bodily use of sugars
lymph
a pale liquid consisting chiefly of plasma and white blood cells
marrow
soft vascular tissue that fills the cavities of most bones
metabolism
the sum of the processes by which a substance is handled in the body
muscle
body tissue consisting of long cells that contract when stimulated
nutrition
the process by which an individual takes in and utilizes food material
plasma
the watery, straw-colored part of blood, lymph, or milk
platelet
a colorless disk-shaped body in blood that aids blood clotting
protein
any of the amino acids present in all living matter that are an essential food item
pulmonary circulation
circulation of blood between the heart and lungs
red blood cell
saucer-shaped cell in blood plasma that carries oxygen
respiration
the act or process of breathing
sphygmomanometer
an instrument used to measure blood pressure
starch
a complex carbohydrate that is stored in plants and used for food
stethoscope
an instrument used to listen to heart sounds
stomach
a sac-like digestive organ into which food goes
system
the body as a functioning whole
systemic circulation
circulation of blood throughout the entire body
tissue
a mass or layer of cells forming a basic structural element of an animal or plant body
urine
a liquid waste material from the kidneys
vein
one of the tubular branching vessels that carry blood from the capillaries toward the heart
ventricle
a chamber of the heart that receives blood from the atrium of the same side and pumps it into the arteries
vitamin
any of the various organic substances that are essential in small amounts for most animals and mostly obtained from foods
white blood cell
a blood cell that does not contain hemoglobin
What's This?

You are viewing a page in The Franklin Institute's online exploration of the human heart. It is one of many Resources for Science Learning which inspire scientific curiosity.

Change Views

Use these options to change colors and text