Science STS Jan. Flashcards
A message that travels across a neutron and from one neuron to another
Impulse
An organ in the endocrine system that produces a chemical change
Gland
An organ that releases hormones directly into the blood
Endocrine gland
A substance released by an endocrine gland that controls some of the body functions
Hormone
A chemical that helps break down food into nutrients during digestion
Enzyme
Tiny sacs in the lungs at the end of bronchioles
Alveoli
An organism that causes disease
Pathhogan
Chemicals produced by white blood cells that kills specific pathogens
Antibody
Transports oxygen, nutrients, and cell wastes
Organ-heart
Circulatory system
Breaks down foods into a form the body use
Digestive system
Controls internal conditions, growth, development, and reproduction
Endocrine system
Removes wastes from blood
Excretory system
Defends the body against pathgoens
Immune Systems
Allows body movement and movement of substance within the body
Muscular system
Controls body movement , thought , and behavior
Nervous system
