11 terms

11 Systems of the Human Body

Integumentary System
Forms external body covering and protects deeper tissue from injury e.g. hair, skin & nails.
Nervous System
Fast acting control system of the body, it responds to internal and external changes by activating appropriate muscles and glands. Brain, nerves & spinal cord.
Skeletal System
Protects and supports body organs, and provides a framework the muscles use to cause movement. Blood cells are formed within bones.
Endocrine System
Glands secrete hormones that regulate processes such as growth, reproduction, and nutrient use by body cells. Glands e.g. adrenal gland, pineal gland, ovary.
Muscular System
Allows manipulation of the environment, locomotion, and facial expression. Maintains posture & produces heat.
Cardiovascular System
Blood vessels transport blood, which carries oxygen, carbon dioxide, nutrients, wastes, etc. The heart pumps blood.
Lymphatic System
Picks up fluid leaked from blood vessels and returns it to blood. Disposes of debris in the lymphatic stream. Houses white blood cells involved in immunity.
Respiratory System
Keeps blood constantly supplied with oxygen and removes carbon dioxide.
Urinary System
Eliminates nitrogenous wastes from the body.
Reproductive System
Overall function is the production of offspring.
Digestive System
Breaks down food into absorbable units that enter the blood for distribution to blood cells.