multiple choice
1. the ____ is a flap that covers the ______
a. pharynx - larynx b. epiglottis - pharynx
c. epiglottis- larynx d. pharynx - epiglottis
2. which statement is true?
a. the bronchus is also called the windpipe
b. the pharynx lies above the larynx in the throat
c. the trachea is covered by alveoli
d. oxygen gas diffuses from the blood to the lungs
3. the diaphragm:
a. is a muscle whose movement causes air to enter the lungs
b. is a layer of tissue in the lungs that contains the alveoli
c. is a large tube that enters each lung
d. is a thin membrane that lines each lung
4. the windpipe is called the:
a. trachea b. bronchus c. pharynx d. esophagus
5. the vocal cords are found in the:
a. esophagus b. bronchi
c. pharynx d. larynx
6. carbon dioxide diffuses from _____ into ______.
a. pulmonary vein, capillaries b. capillaries, alveoli
c. alveoli, capillaries d. bronchi, capillaries
7. both food and air travel through the:
a. pharynx b. larynx c. bronchi d. trachea
8. the vocal cords are found in the:
a. esophagus b. bronchi
c. larynx d. pharynx
9. which is the smallest part of the respiratory system?
a. alveoli b. bronchi
c. larynx d. epiglottis
10. the main tubes that enter the lungs are called:
a. trachea b. esophagus
c. pharynx d. bronchi
© dr. dave’s science

Question

multiple choice
1. the ____ is a flap that covers the ______
   a. pharynx - larynx   b. epiglottis - pharynx
   c. epiglottis- larynx  d. pharynx - epiglottis
2. which statement is true?
   a. the bronchus is also called the windpipe
   b. the pharynx lies above the larynx in the throat
   c. the trachea is covered by alveoli
   d. oxygen gas diffuses from the blood to the lungs
3. the diaphragm:
   a. is a muscle whose movement causes air to enter the lungs
   b. is a layer of tissue in the lungs that contains the alveoli
   c. is a large tube that enters each lung
   d. is a thin membrane that lines each lung
4. the windpipe is called the:
   a. trachea   b. bronchus   c. pharynx   d. esophagus
5. the vocal cords are found in the:
   a. esophagus   b. bronchi
   c. pharynx     d. larynx
6. carbon dioxide diffuses from _____ into ______.
   a. pulmonary vein, capillaries   b. capillaries, alveoli
   c. alveoli, capillaries           d. bronchi, capillaries
7. both food and air travel through the:
   a. pharynx   b. larynx   c. bronchi   d. trachea
8. the vocal cords are found in the:
   a. esophagus   b. bronchi
   c. larynx       d. pharynx
9. which is the smallest part of the respiratory system?
   a. alveoli   b. bronchi
   c. larynx     d. epiglottis
10. the main tubes that enter the lungs are called:
    a. trachea   b. esophagus
    c. pharynx    d. bronchi
© dr. dave’s science

Accepted Answer

### Question 1
# Brief Explanations:
The epiglottis is a flap that covers the larynx (voice box) to prevent food from entering the respiratory tract during swallowing. The pharynx is the throat, not a flap. So the correct pair is epiglottis - larynx.
# Answer:
C. epiglottis - larynx

### Question 2
# Brief Explanations:
- Option A: The windpipe is the trachea, not the bronchus.
- Option B: The pharynx (throat) is above the larynx in the throat region, this is correct.
- Option C: Alveoli are in the lungs, the trachea is a tube leading to the lungs, not covered by alveoli.
- Option D: Oxygen diffuses from the lungs (alveoli) to the blood, not the other way.
# Answer:
B. the pharynx lies above the larynx in the throat

### Question 3
# Brief Explanations:
- Option A: The diaphragm is a muscle; when it contracts (moves down), it increases chest volume, causing air to enter the lungs (inspiration). This is correct.
- Option B: The diaphragm is not in the lungs, alveoli are in the lungs.
- Option C: The large tubes entering the lungs are bronchi, not the diaphragm.
- Option D: The pleural membrane lines the lungs, not the diaphragm.
# Answer:
A. is a muscle whose movement causes air to enter the lungs

### Question 4
# Brief Explanations:
The windpipe is the common name for the trachea. The bronchus is a branch of the trachea, the pharynx is the throat, and the esophagus is for food.
# Answer:
A. trachea

### Question 5
# Brief Explanations:
The vocal cords are located in the larynx (voice box). The esophagus is for food, bronchi are in the lungs, and the pharynx is the throat.
# Answer:
D. larynx

### Question 6
# Brief Explanations:
Carbon dioxide is a waste product in the blood (in capillaries around alveoli). It diffuses from the capillaries (higher concentration) into the alveoli (lower concentration) to be exhaled.
# Answer:
B. capillaries, alveoli

### Question 7
# Brief Explanations:
The pharynx is a common passageway for both food (to the esophagus) and air (to the larynx/trachea). The larynx, bronchi, and trachea are only for air.
# Answer:
A. pharynx

### Question 8
# Brief Explanations:
As in question 5, the vocal cords are in the larynx. The esophagus is for food, bronchi are in the lungs, and the pharynx is the throat.
# Answer:
C. larynx

### Question 9
# Brief Explanations:
Alveoli are tiny air sacs in the lungs, the smallest part of the respiratory system for gas exchange. Bronchi are larger tubes, the larynx is the voice box, and the epiglottis is a flap.
# Answer:
A. alveoli

### Question 10
# Brief Explanations:
The main tubes that enter each lung from the trachea are the bronchi. The trachea is the windpipe, the esophagus is for food, and the pharynx is the throat.
# Answer:
D. bronchi

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

Question 1

Answer:

Question 2