Anatomy and Physiology

Lymphatic System Structure and Function Lymphatic system The lymphatic system drains away excess fluid that does not return to the blood capillaries; absorbs fats from the small intestine and protects against foreign invaders. Structure of the lymphatic system: Capillaries – function – allows for easy passage of soluble materials and water Lymphatic vessels – function … Read moreAnatomy and Physiology: The Lymphatic System

Urinary System Structure and Function Urinary system The urinary system removes waste products from the blood and eliminates them from the body. Other functions include regulation of the volume of body fluids and balance of the pH and electrolyte composition of these fluids. Structure of the urinary system: Kidneys – function – extract waste from … Read moreAnatomy and Physiology: The Urinary System

Digestive System Structure and Function Digestive system The digestive system serves to supply constant nutrients which provide energy and building blocks to every body cell. This is achieved by the breaking down of food into small enough particles to pass through the cell membrane, known as digestion; and transference of these small particles to the … Read moreAnatomy and Physiology: The Digestive System

Nervous System Structure and Function Nervous system The nervous system serves as the chief coordinating agency. Conditions within and outside the body are constantly changing; the nervous system responds to these changes causing the body to adapt itself to new conditions so that balance is maintained. Organisation of the nervous system: Structural divisions: Central Nervous … Read moreAnatomy and Physiology: The Nervous System

Endocrine System Structure and Function Endocrine system The endocrine system is a controlling and coordinating system in the body which functions by producing chemical messengers known as hormones. There are seven main structures: Hypothalamus Function – controls the functioning of the pituitary gland Pituitary Function – known as the master gland, it releases hormones that … Read moreAnatomy and Physiology: The Endocrine System

Circulatory and Respiratory Structure and Function Circulatory system Circulation is the one way movement of blood through the body which involves 4 main structures: Heart Function – a double pump containing 2 circuits The pulmonary circuit carries blood to and from the lungs The systemic circuit carries blood to and from all other parts of … Read moreAnatomy and Physiology: Circulation and Respiration