Science18.1 Respiration

18.2 Digestion

STUDY GUIDE

When you breathe, your respiratory system is bringing your body

• Oxygen and removing carbon dioxide

What order does air come into your body?

• 1. mouth• 2. throat• 3. bronchial tubes• 4. lungs

What body system makes speech (your voice)

• Respiratory

Which muscle contracts (squeezes)to make your chest expand (get bigger)?

•diaphragm

When the digestive system breaks down food, your body gets

• Energy and materials

When you chew your food, that is what kind of digestion?

• Mechanical (you move your mouth…mechanical means to move)

When your saliva (spit) softens your food that is what type of action?

• Chemical (your saliva has chemicals in it that breaks down your food)

Peristalsis is what type of digestion?

• mechanical

If a cell does not get enough oxygen it will

• die

To release energy, your body uses oxygen and what during cellular respiration?

• glucose

What is another word for the voice box?

• larynx

Movement of food through the esophagus due to muscular action

is called

• peristalsis

Chemical and mechanical digestion occur in what two places?

•Mouth• Stomach

What is produced in the liver?

•bile

What type of cell transports (carries) oxygen through the body?

•Red blood cells

What do we do to get air into our bodies?

• breathe

What is the esophagus?

•A tube that carries food from the mouth to the stomach

Where does digestion begin?

•Mouth (When you chew it begins the digestion

process)

What absorbs water during digestion?

• Large intestine

What tube is located between the larynx and the bronchi

• trachea

What are the tiny air sacs where gas is exchanged (swapped) called?

• alveoli

What is the substance (stuff) that traps dirt and pollen called?

•mucus

Which muscle pushes the air out of the lungs?

• diaphragm

• You can get asthma even if you don’t smoke.

• 20% of the air we breathe in is oxygen

What do scuba divers carry in their air tanks?

• oxygen

Is water a nutrient (something good for your body)?

• Yes

Salivary Glands are part of which system?

• digestive

• Don’t forget to study the drawing of the

• 1. Respiratory system• 2. Digestive system

You will have to label the Respiratory System!

alveoli

You will label the Digestive System

appendix

mouth

rectum