1 Organ Systems Teamwork

2 Nervous Digestive Integumentary Respiratory Skeletal Muscular Excretory Circulatory Endocrine Reproductive Lymphatic 11 Systems in the Human Body…

3

4 Nervous System Structures: Brain, spinal cord, and peripheral nerves Function: Coordinates the body’s response to changes in its internal and external environments

5 Skeletal System Structures: Bones, cartilage, ligaments, and tendons Function: Supports the body; protects internal organs; allows movement; stores mineral reserves; and provides a site for blood cell formation

6 Muscular System Structures: Skeletal muscle, smooth muscle, and cardiac muscle Function: Works with skeletal system to produce voluntary movement; helps to circulate blood and move food through the digestive system

7 Muscles and bones work together to produce movement.

8 Integumentary System Structure: Skin, sweat and oil glands, hair, and nails Function: Serves as a barrier against infection and injury; helps to regulate body temperature; and provides protection against ultraviolet radiation from the sun

9 Cardiovascular (Circulatory) System Structure: Heart, blood vessels, and blood Function: Brings oxygen, nutrients, and hormones to cells; fights infections; and regulates body temperature

10 The circulatory system depends on the pulmonary system (lungs) to deliver oxygen to muscles and other organs.

11 Immune/Lymphatic System Structures: White blood cells, thymus, spleen, lymph nodes, and lymph vessels Function: Help protect the body from disease; collects fluid lost from blood vessels and returns the fluid to the circulatory system

12 Getting rid of waste is another necessary function of the body: Lungs get rid of carbon dioxide. Lymphatic vessels recycle extra fluids that build-up next to cells and tissues. Kidneys filter the blood of toxins. Skin releases excess salts through sweat.

13 Respiratory System Structures: Nose, pharynx, larynx, trachea, bronchi, bronchioles, and lungs Function: Provides oxygen needed for cellular respiration and removes excess carbon dioxide from the body

14 Digestive System Structures: Mouth, pharynx, esophagus, stomach, small intestines and large intestines Function: Converts foods into simpler molecules that can be used by the cells of the body; absorbs food

15 The digestive system does not work without the help of other organ systems. The digestive system needs the cardiovascular system to deliver the nutrients to other organs in the body such as the muscles and the brain.

16 Excretory System Structures: Skin, lungs, kidneys, ureters, urinary bladder, and urethra Function: Eliminates waste products of metabolism from the body and maintains homeostasis

17 Endocrine System Structures: Hypothalamus, pituitary gland, thyroid, parathyroid, adrenals, pancreas, ovaries (female), and testes (male) Function: Controls growth, development, metabolism and reproduction

18 Reproduction, growth and development are critical functions of all living things. The endocrine system provides the chemical messages for growth, development, and proper functioning of the reproductive system.

Reproductive System Structures: Testes, epididymis, vas deferens, urethra, and penis (males); ovaries, Fallopian tubes, uterus, and vagina (females) Function: Produces reproductive cells, in females, nurtures and protects developing embryo

20 Pancreas releases insulin Blood sugar is too low Sugar level goes to… Homeostasis Pancreas releases glucogen Sugar level goes to… Homeostasis Blood sugar is too high

21