Body Systems Flashcards
Organelles
Small structure in cell which has its own function
Cells
The building block of all living things.
Tissue
Groups of cells performing the same function.
System
Groups of organs working together.
Blood cells
the red liquid that circulates around the body. It is made up of plasma, blood cells and platelets.
Blood vessels
the veins, arteries and capillaries through which the blood flows around the body
Heart
muscular organ that pumps blood through the circulatory system so that oxygen and nutrients can be transported to the body’s cells and wastes can be transported away
Arteries
hollow tubes (vessels) with thick walls carrying blood pumped from the heart to other body parts
Capillaries
minute tubes carrying blood to body cells. Every cell of the body is supplied with blood through capillaries.
Veins
blood vessels that carry blood back to the heart. They have valves and thinner walls than arteries.
Cellular respiration
Pthe chemical reaction involving oxygen that moves the energy in glucose into the compound ATP. The body is able to use the energy contained in ATP.x
Respiratory system
the body system involving the lungs and associated structures, which take in air and supply the blood with oxygen to deliver to the body’s cells so they can carry out their essential functions; it also performs gas exchange to remove the waste gas carbon dioxide
Digestive system
complex series of organs and glands that processes food to supply the body with the nutrients it needs to function effectively
Excretory system
the body system that removes waste substances from the body
Mechanical digestion
Digestion that uses physical factors such as chewing with teeth.
