organisation homeostasis

levels or organisation

1. atom

2. molecule

3. cell

4. tissue

5. organ

6. organ system

7. organism

circulatory

Heart, blood vessels and blood, blood transports oxygen, nutrients and removes waste materials.

Respiratory

upper and lower respiratory tract and lungs. movement or air into and out of the body

Nervous

Brain, spinal cord and nerves. voluntary and involuntary. receive, interpret and respond to stimuli.

Digestive

mouth, oesophagus, stomach, intestines and rectum. nutrients absorbed and waste products excreted.

integumentary

skin, sweat glands, and hair follicles. protects

Urinary

Kidneys, ureters, bladder, and urethra. filters blood and removes toxins and excess liquid

Lymphatic/immune

Bone marrow, thymus, spleen, adenoids, tonsils, lymph vessels and ducts that collect excess liquid (called lymph) from extracellular spaces in tissues and transport the fluid, immune response.

Reproductive

Different between males and females, penis, vagina etc

muscular

Muscles, ligaments and tendons. movement and control of the body

Endocrine

collection of glands that produce hormones

Skeletal

Bones offer protection and shape and movement

Anatomical position

the body is upright with feet parallel, and the arms hanging at the sides with palms facing forward.