Chapter 5 Human Body Systems

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

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

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

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

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

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

Excretory System Removes cellular wastes skin, lungs, kidney

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

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

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

Immune System system of defense against foreign invaders