7A REVIEWRespiratory & Excretory

Systems

1. Which is the correct sequence for the path of oxygen through the respiratory system?

Nasal cavityPharynxLarynxTracheaBronchiBronchiolesAlveoli

2. The tubes that branch from the trachea are the

3. The dome shaped muscle below the chest cavity is called the

4. During swallowing, the air passage of the pharynx is covered by the

5. Alveoli in the lungs are connected to the bronchi by a network of tiny tubes called

bronchi

diaphragm

epiglottis

bronchioles

6. Explain what happens to gases during gas exchange in the alveoli.

Oxygen in alveoli diffuses into capillaries (blood).

Carbon dioxide in capillaries (blood) diffuses into alveoli.

7. Where are the vocal cords located in the body?

8.What prevents the trachea from collapsing?

9. Where does the actual exchange of gases occur?

10. During gas exchange where does the oxygen and carbon dioxide go?

larynx

rings of cartilage

alveoli

O2 diffuses into capillaries. CO2 diffuses out of capillaries and into alveoli.

11. The ______ is a long straight tube that carries air from the back of the throat to the lungs.

trachea

12. What structures trap foreign particles and bacteria in the nose and trachea?

a)pharynx       b)epiglottis      c)cilia        d)trachea

c

13. The order of air movement with in the lungs is best described as

a) bronchioles to bronchi to alveoli      

b) bronchi to bronchioles to alveoli c) trachea to bronchi to alveoli       d) bronchi to alveoli to bronchioles c

14. Where are the vocal cords located in the body?

Larynx

15. During swallowing, the air passage of the pharynx is covered by the

epiglottis

16. The FIRST branches off the trachea are called

bronchi     

17. What prevents the trachea from collapsing?

rings of cartilage   

18. Alveoli in the lungs are connected to the bronchi by a network of tiny tubes called

a) arterioles         b) venules       c) capillaries          d) bronchioles

d

19. Inside the alveoli, carbon dioxide and oxygen

a) are transported along microscopic tubules

b) are exchanged between air and blood  

c) are produced inside cells       d) are exchanged for other gases b

20. Humans breathe more rapidly during exercise than before it because during exercise the blood contains

1.an increased level of oxygen2.a decreased number of red blood

cells3.an increased level of carbon

dioxide4.a decreased amount of

hemoglobin

3

21. What happens to each of the following during inhalation?

a. Diaphragm

b. Rib cage

c. Pressure in chest cavity

contracts (pulls down)

expands

decreases

22. What happens to each of the following during exhalation?

a. Diaphragm

b. Rib cage

c. Pressure in chest cavity

relaxes (moves up)

relaxes

increases

23. Identify the structures labeled in the diagram.

A – nasal cavityB – pharynxC – larynxD – tracheaE – bronchiF – bronchiolesG – lungH - diaphragm

A

BC

D

EF

G

H

24. Explain the function of the respiratory system.

To carry out gas exchange between the external and internal environment

A

BC

D

EF

G

H

25. Identify the structure described.

a. Contain a ciliated mucus membrane

b. Voice box

c. Aids in breathing

d. Throat

e. Windpipe

A

BC

D

EF

G

H

Nasal cavity and trachea

larynx

diaphragm

pharynx

trachea

26.

4

27.

4

28.

4

29.

30.

1

3

circulatory

It came from the lungs.

31.

32.

Oxygen moves from the alveoli (respiratory system) into the capillaries (circulatory) while carbon dioxide moves from the capillaries into the alveoli.

33.

34.Identify A, B, and D.

lung

liver

kidney

35. Which organ produces urea?

36. What is the function of D?

B - liver

•Filter wastes from blood•Regulate water concentration of blood.•Produce urine

37. What does organ A excrete?

38. Which organ detoxifies the blood?

•CO2 and H2O vapor

•B - Liver

39. What are metabolic wastes? Examples?

•Wastes from your cells.

•CO2, H2O, salts, urea

40. Identify structures A, B, C, and D.

Kidney

Ureter

Urinary bladderUrethra

41. Which structure produces urine?

42. What is the path of urine?

A - Kidneys

Kidneys ureters urinary bladder urethra

43. What stores urine?

44. What is the function of D?

C - Urinary bladder

Releases urine from the body.

45. Which human excretory structure aids in the maintenance of normal body temperature?

46. Why is the skin also an excretory organ?

Skin

It excretes water, salts and small amounts of urea in the form of perspiration.