Multiple Choice
The ________ contains the vocal cords.
a. larynx
b. trachea
c. pharynx
a. larynx
The trachea branches off into two tubes called __________.
bronchi
Our breathing system is called the ____________ system.
respiratory
Compare and contrast involuntary breathing with voluntary breathing.
Involuntary breathing is automatic. It occurs when you are not thinking about breathing. Voluntary breathing takes place when you think about and control your breathing.
What affects the pitch coming from the vocal cords?
the thickness and length of the vocal cords
The bronchi branch into smaller tubes called _________.
a. cilia
b. alveoli
c. branchioles
c. branchioles
The trachea and bronchi have C-shaped rings of _______________ on the outside that keep them from collapsing and allow them to move.
cartilage
The ________________ and the diaphragm change the space and pressure inside your body to allow you to breathe.
chest muscles
Name three reasons why your body needs oxygen.
to live, to have energy, to think, to digest food, to pump blood, to move
(other answers may be valid)
When does snoring happen?
when air cannot flow freely through the back of the mouth and nose
The two tubes that connect to the lungs are the __________.
a. bronchi
b. trachea
c. alveoli
a. bronchi
Like the lining of the nasal passages, the lining inside the trachea and bronchi has mucus and ___________.
cilia
Exhaling is the __________ process of inhaling.
reversed
Explain how oxygen gets to every cell in your body.
Oxygen is in the air. It enters your body when you inhale. In the lungs the capillaries pick up the oxygen and add it to the blood. The blood carries the oxygen to every cell in your body.
What are some of the causes of snoring?
allergies, colds, the wall of cartilage in the nose being crooked, being overweight, sleeping on the back, swollen tonsils
The windpipe tube that connects to the lungs is the _______.
a. esophagus
b. diaphragm
c. trachea
c. trachea
Since the lungs do not have their own muscles, the _______________ and chest muscles control the movement of the lungs.
diaphragm
The exchange of gas is called breathing, or _____________.
respiration
How are speech sound waves created?
When air is exhaled, it goes upward from the lungs, goes into the trachea, pushes through closed vocal cords, and makes them vibrate.
Why is it important for Christians to take care of their bodies?
A Christian's body was made by God and is important to Him. Taking care of our bodies is our responsibility and brings glory to God.
Automatic breathing is called __________.
a. voluntary breathing
b. involuntary breathing
c. reflex breathing
b. involuntary breathing
_____________ passes through the walls of the alveoli into the blood in the capillaries.
Oxygen
_____________ passes from the blood in the capillaries into the alveoli.
Explain why coughs and sneezes occur. How does your respiratory system react?
They often occur whenever something irritates the lining of the airways. The diaphragm relaxes, other muscles contract, and air is forced violently out through the mouth and nose.
Why is smoking harmful?
Cigarette smoke contains poisonous chemicals that harm the lungs and other parts of the body. As smoke particles get in the lungs and cool, they form a sticky tar that keeps the cilia from working properly. The smoke can also keep the alveoli from working properly.