Body Systems Flashcards
(42 cards)
Alveoli
Small air sacks in the lungs where gaseous exchange takes place
Cartilage
A tough form of tissue which covers and protects the ends of bones, and acts as a buffer where two bones meet at a joint.
Diastolic pressure
The pressure of the blood flow in the arteries when the left ventricle relaxes
Duodenum
Part of the small intestine
Exhale
To breathe out
Expiration
The action of the diaphragm and intercostal muscles which forces air out of the body
Fibrous
Where fibres link together such as a fibrous joint
Forced breathing
The increase of the breathing rate during physical activity.
Haemoglobin
The substance in the red blood cells which transports oxygen and carbon dioxide.
Heartbeat
One contraction and one relaxation of the heart.
Ileum
Lower part of the small intestine.
Inhale
To breathe in.
Inspiration
Air taken in when the diaphragm flattens and moves downwards.
Intercostal muscles
Muscles surrounding the ribs which assist breathing.
Joint
A place where two or more bones meet.
Lactic acid system
The breakdown of carbohydrates to provide energy, usually functioning during activities lasting between one and three minutes.
Ligaments
Strong fibrous bands which stabilize joints and control movement
Neurons
The basic cells of the nervous system
Nucleus
Main cell body of the nervous system.
Oesphagus
canal from mouth to stomach, along which food passes.
Oxyhaemaglobin
Substance which oxygen turns into after gaseous exchange.
Physiology
Study of the function and processes of the human body.
Platelet
Small blood cells which help to clot the blood.
Pleura
Membrane surrounding the lungs, which acts as a lubricant.
