The endocrine gland secretes hormones. Main function: Coordinates body activities with the nervous system
Respiratory system
Trachea, nose, lungs and diaphragm. Main function: Exchange of oxygen and carbon dioxide gases between the body and the external environment
Muscular system
Skeletal muscles, smooth muscles and cardiac muscles. Main function: Contracts and relaxes to produce movements in different parts of the body
Male reproductive system
Testes, prostate gland and penis. Main function: Produces sperm and male sex hormones
Female reproductive system
Ovary, uterus, Fallopian tube, vagina and cervix. Main function: Produces ovum and female sex hormones
Lymphatic system
Spleen, lymph nodes and lymph vessels. Main function: Maintains balance of bodily fluids and prevents infectious diseases
Nervous system
Brain, spinal cord and peripheral nerves. Main function: Detects and send information in the body, as well as coordinates body activities
Blood circulatory system
Heart, artery, vein and blood capillary. Main function: Transports nutrients, respiratory gases and waste products
Digestive system
Mouth, oesophagus, stomach, liver, pancreas, small intestine and large intestine. Main function: Digests food into a simpler form for easy absorption
Urinary system
Kidney, ureter, urethra and bladder. Main function: Eliminates waste products such as urea and uric acid from the body
Skeletal system
Bone, cartilage, ligament and tendon. Main function: Supports the body, protects the internal organs and provides a base for muscle adhesion
Integumentary system
Skin. Main function: Protects the body from physical injury, infection and dehydration
Main plant systems
Shoot system
Root system
Shoot system
Consists of stems, leaves, shoots, flowers and fruits. Stems and twigs are support systems that support the leaves at the vertical position to allow maximum absorption of sunlight during photosynthesis. Flowers are involved in the pollination process
Root system
Consists of all roots in a plant that function in absorbing water and mineral salts as well as providing support for plants