Body Systems
Skin
Forms the external body covering
Protects from injury
Regulates body temperature
Synthesizes vitamin D
Sweat and oil glands
Location of cutaneous nerve receptors
Cutaneous refers to the surface of the body
and sensory nerves (pain pressure etc..)
Skeletal System
Bones, joints and cartilage(3 types)
Protects and supports body organs
Provides muscle attachment for movement
Site of blood cell formation
Red bone marrow produces blood cells
Stores minerals
Bones act as banks or reserves to supplement
for changes within the body
Muscular System
Muscles (skeletal, smooth, cardiac)
Produces movement
Maintains posture
Produces heat
Nervous System
Brain, spinal cord, nerves
Fast-acting control system
Responds to internal and external change
Activates muscles and glands
Endocrine System
Hormones, glands
Secretes regulatory hormones
Responsible for growth, reproduction, metabolism
Hormones produce in one part of the body and affect another.
Circulate through the body through the cardiovascular system.
Cardiovascular System
Heart, blood vessels
Transports materials in the body via blood pumped by heart
Oxygen
Carbon dioxide
Nutrients
Wastes
Lymphatic/Immune System
Lymph nodes, lymphatic vessels, tonsils, thoracic duct
Responsible for fighting off infections or diseases
Cleanses blood
Involved in immunity
Returns fluids to blood vessels
Edema refers to swelling. Edema signifies problem with lymphatic system
Spleen is the mass producer of WBC.
Respiratory System
Lymph nodes, lymphatic vessels, tonsils, thoracic duct
Keeps the blood supplied with oxygen
Removes carbon dioxide
Digestive System
Stomach, intestines
Breaks down food
Allows for nutrient absorption into blood
Eliminates indigestible materials as feces
Urinary System
Kidney, ureter, bladder, urethra
Eliminates nitrogenous wastes
Maintains acid-base balance (pH)
Regulates water and electrolytes
Reproductive System
Glands, genitalia
Produces offspring
Testes produce sperm and male hormone
Ovaries produce eggs and female hormones