Name: KEY Period:_________

Body Systems Mid-Unit Test Review (Due Thursday 1/8/15) 1. Complete your foldable that you received in class you must show this completed on Thursday 1/8/15 to receive credit. 2. Describe the path of food through the digestive system. Be specific to the organs used in this process and what their functions are in relation to the overall system Mouth

- to start the break down process of food, teeth-mechanical digestion, saliva- to begin the breakdown of food by chemical enzymes

Esophagus

-transportation from the mouth to the stomach, the process of peristalsis begins in the esophagus when a bolus of food is swallowed.

Stomach

-break down of food through chemical digestion

Small intestine

-villi absorb nutrients and waste keeps going to the large intestine

Large intestine

Rectum

-absorbs the rest of the liquid

-where the feces is stored -how feces leaves the body

Anus 3.

Define homeostasis and give two examples of your body changing to maintain homeostasis. Homeostasis- the process that maintains the stability of the human body’s internal environment in response to changes in external conditions Examples- sweating due to fever and vomiting due to ingesting something bad

4. What is the main function of the circulatory system? What are the major organs? What does it interact with?

Name: KEY Function: to transport materials to and from your cells Main Organs: heart, blood, blood vessels Interacts with: all systems 5. Describe chemical vs. mechanical digestion Chemical digestion- chemical break down food

Mechanical digestion- physical break down of food

6. List the levels of organization Cell  Tissue  Organ  Organ System  Organism 7. Describe the relationship between work and muscles and then describe the relationship between muscles and simple machines. Muscles allow you to use force to do work Simple machines allow you to not use as much force to do the same amount of work 8. Identify the wastes that organs can produce Sweat Urine Carbon dioxide Feces 9. Explain the difference between voluntary and involuntary muscles. Give 2 examples of each type. Voluntary muscles- the ability to control muscle movement EX 1: picking up a book EX 2: swinging a baseball bat Involuntary muscles- muscles moving without control EX 1: Heart EX 2: Stomach