Biology

small part of a cell with a particular job to do e.g nucleus

smallest part of a living organism e.g nerve cell, muscle cell

a group of specialised cells that carry out a particular job

a group of different tissues that work together to carry out a job in a system e.g brain, heart, skin

a group of different organs which work together to carry out a specific life process in an organism e.g respiratory

muscles that work in pairs to control the movement of joints

where bones come together and they allow for controlled movement

flexible tissue that covers the end of the bone at a joint and connects bone together

fibres that hold bone to bone to a joint. It prevents movement that may damage a joint.

fibres that attach muscle to bone

the process of taking air in (inhalation) and out of the lungs (exhalation)

process in a cell that converts glucose and oxygen to create energy (cO2 is also given off)

the ribbed tube that carries air from the throat to the lungs

the small airways that air passes through to the small alveoli

the small air sacs where gas exchange occurs in the lungs

a blood vessel that carries blood away from the heart

a blood vessel that carries blood towards the lungs

very thin blood vessel that allows for passage of water, oxygen, nutrients and waste products

a cell in the blood that carries oxygen and carbon dioxide throughout the body

cells found in blood that help defend it from infection such as bacteria and viruses

the lower chambers of the heart that pump blood, the left to the body and the right to the lungs

the upper chambers of the heart that receive blood, the left from the lungs and the right from the body

the largest artery in the body that leaves the left ventricle and takes oxygenated blood to the body

two large blood vessels that return deoxygenated blood from the body to the heart