Chapter 10

Artery

Blood vessel that carries blood away from heart

Capillary

Very tiny blood cell; nutrients, oxygen, and other substances pass from capillaries into the cells

Cell

Basic unit of body structure

CNS

Central nervous system

Co2

Carbon dioxide

Digestion

Process that breaks down food physically and chemically so it can be absorbed for use by the cells

GI

Gastro-intestinal

Hemoglobin

Substance in RBC that carries O2 and gives blood its red color

Hormone

Chemical substance secreted by endocrine glands into the bloodstream

Immunity

Protection against disease or condition; person will not get or be affected by the disease

Joint

Point at which 2 or more bones meet to allow movement

Menstruation

Process where lining of uterus (endometrium) breaks up and is discharged from body through vagina

Metabolism

How body uses nutrients to provide energy and maintain body functions

mL

MilliLiter

O2

Oxygen

Organ

Groups of tissue that function together

Persistalsis

Alternating contraction and relaxation of muscles that food move through the digestive system

PNS

Peripheral nervous system

RBC

Red blood cells

Reflex

Body's response to stimulus that doesn't require conscious thought

Respiration

Process of supplying cells with oxygen and removing CO2 from them

Stimulus

Anything that causes body part to respond

System

Organs that work together to preform certain functions

Tissue

Group of cells with similar functions

Vein

Blood vessel that returns blood to heart

WBC

White blood cells