Chapter 8 Flashcards
artery
A blood vessel that carries blood away from the heart
capillary
A tiny blood vessel; food, oxygen, and other sub stances pass from the capillaries into the cells
cell
The basic unit of body structure
digestion
The process of physically and chemically breaking down food so it can be absorbed for use by the cells
hemoglobin
The substance in red blood cells that carries oxygen and gives blood its color
hormone
A chemical substance secreted by the endocrine glands into the bloodstream
immunity
Protection against a disease or condition; the person will not get or be affected by the disease
menstruation
The process in which the lining of the uterus breaks up and is discharged from the body through the vagina
metabolism
The burning of food for heat and energy by the cells
organ
Groups of tissues with the same function
peristalsis
Involuntary muscle contractions in the digestive system that move food down the esophagus through the alimentary canal
respiration
The process of supplying the cells with oxygen and removing carbon dioxide from them
system
Organs that work together to perform special functions
tissue
A group of cells with similar functions
vein
A blood vessel that returns blood to the heart
