1. Chapter 5
Human Body Systems

2. Digestive System Takes in food Breaks down food
Removes undigested food
mouth, esophagus, stomach, L. intestine, S. intestine, rectum, anus
Calorie - energy of food

3. Circulatory System Moves materials around the body
RBC, WBC, platelets, plasma, veins, arteries, heart, capillaries

4. Respiratory System Takes in Oxygen Removes Carbon Dioxide
lungs, trachea, bronchi, bronchioles, alveoli

5. Respiratory and Circulatory
The Respiratory System works with the circulatory system to maintain homeostasis.
The Respiratory System brings in oxygen which transports throughout the body via the Circulatory System.
The Circulatory System picks up Carbon Dioxide from the body and brings it to the lungs for removal from the body

6. Skeletal System Provides structure Provides support
Provides attachment area for muscles
Provides protection

7. Muscular System Provides movement There are three types:
1. Skeletal -skeleton muscle
2. Smooth -intestinal muscle, veins
3. Cardiac -heart muscle

8. Excretory System
Removes cellular wastes
skin, lungs, kidney

9. Reproductive System Produces male and female gametes
Male gamete - sperm
Female gamete - egg
fallopian tubes, uterus, cervix, penis, vagina

10. Nervous System
Controls and coordinates all activities with electrical and chemical messages
Neuron, dendrite, axon, cell body, sensory, CNS, PNS

11. Endocrine System
Controls and coordinates the body with chemical messengers called hormones
hypothalamus, pituitary gland, thyroid, ovaries, testis

12. Immune System
system of defense against foreign invaders