Gas Exchange In Humans.

18 Questions | By Kimcheecolin | Last updated: Jun 29, 2015 | Total Attempts: 35

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This is a quiz to help you assess your understanding of the mechanisms involved in ventilation / gas exchange.

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Questions and Answers

1.

Inspiration involves...
- A.
  
  Involves an increase in thoracic volume and a decrease in thoracic pressure
- B.
  
  Involves an increase in thoracic volume and a decrease in thoracic pressure
- C.
  
  Involves a decrease in thoracic volume and an increase in pressure
- D.
  
  Involves an increase in thoracic volume and an increase in thoracic pressure
2.

Expiration
- A.
  
  Involves a decrease in thoracic volume and a decrease in thoracic pressure
- B.
  
  Involves an increase in thoracic volume and a decrease in thoracic pressure
- C.
  
  Involves a decrease in thoracic volume and an increase in pressure
- D.
  
  Involves a decrease in thoracic volume and an increase in thoracic pressure
3.

Breathing in is passive - no muscle contraction involved.
- A.
  
  True
- B.
  
  False
4.

Breathing in is active - muscle contraction is involved.
- A.
  
  True
- B.
  
  False
5.

During inspiration
- A.
  
  The diaphragm relaxes and flattens
- B.
  
  The diaphragm relaxes and assumes a dome shape
- C.
  
  The diaphragm contracts and flattens
- D.
  
  The diaphragm contracts and assumes a dome shape
6.

During inspiration
- A.
  
  The diaphragm relaxes and flattens decreasing thoracic volume
- B.
  
  The diaphragm contracts and assumes a dome shape increasing thoracic volume
- C.
  
  The diaphragm contracts and flattens increasing thoracic volume
- D.
  
  The diaphragm relaxes and assumes a dome shape decreasing thoracic volume
7.

During expiration
- A.
  
  The diaphragm relaxes and flattens decreasing thoracic volume
- B.
  
  The diaphragm contracts and assumes a dome shape increasing thoracic volume
- C.
  
  The diaphragm contracts and flattens increasing thoracic volume
- D.
  
  The diaphragm relaxes and assumes a dome shape decreasing thoracic volume
8.

During inspiration
- A.
  
  The intercostal muscles contract pulling the rib cage up and out - the diaphragm contracts increasing thoracic volume
- B.
  
  The intercostal muscles relax pulling the rib cage down and in - the diaphragm relaxes decreasing thoracic volume
- C.
  
  The intercostal muscles contract pulling the rib cage up and out - the diaphragm relaxes increasing thoracic volume
- D.
  
  The intercostal muscles contract pulling the rib cage up and out - the diaphragm contracts decreasing thoracic volume
9.

During expiration
- A.
  
  The intercostal muscles contract pulling the rib cage up and out - the diaphragm contracts increasing thoracic volume
- B.
  
  The intercostal muscles relax pulling the rib cage down and in - the diaphragm relaxes decreasing thoracic volume
- C.
  
  The intercostal muscles contract pulling the rib cage up and out - the diaphragm relaxes increasing thoracic volume
- D.
  
  The intercostal muscles contract pulling the rib cage up and out - the diaphragm contracts decreasing thoracic volume
10.

What is structure g?
- A.
  
  Right lung
- B.
  
  Diaphragm
- C.
  
  Rib
- D.
  
  Bronchiole
- E.
  
  Abdominal Cavity
- F.
  
  Intercostal Muscle
- G.
  
  Thorax
- H.
  
  Trachea
- I.
  
  Primary Bronchus
11.

What is structure C?
- A.
  
  Right lung
- B.
  
  Diaphragm
- C.
  
  Rib
- D.
  
  Bronchiole
- E.
  
  Abdominal Cavity
- F.
  
  Intercostal Muscle
- G.
  
  Thorax
- H.
  
  Trachea
- I.
  
  Primary Bronchus
12.

What is structure f?
- A.
  
  Right lung
- B.
  
  Diaphragm
- C.
  
  Rib
- D.
  
  Bronchiole
- E.
  
  Abdominal Cavity
- F.
  
  Intercostal Muscle
- G.
  
  Thorax
- H.
  
  Trachea
- I.
  
  Primary Bronchus
13.

What is structure j?
- A.
  
  Right lung
- B.
  
  Diaphragm
- C.
  
  Rib
- D.
  
  Bronchiole
- E.
  
  Abdominal Cavity
- F.
  
  Intercostal Muscle
- G.
  
  Thorax
- H.
  
  Trachea
- I.
  
  Primary Bronchus
14.

What is structure a?
- A.
  
  Right lung
- B.
  
  Diaphragm
- C.
  
  Rib
- D.
  
  Bronchiole
- E.
  
  Abdominal Cavity
- F.
  
  Intercostal Muscle
- G.
  
  Thorax
- H.
  
  Trachea
- I.
  
  Primary Bronchus
15.

What is structure i?
- A.
  
  Thorax
- B.
  
  Trachea
- C.
  
  Primary Bronchus
- D.
  
  Right lung
- E.
  
  Diaphragm
- F.
  
  Rib
- G.
  
  Bronchiole
- H.
  
  Abdominal Cavity
- I.
  
  Intercostal Muscle
16.

What is structure b?
- A.
  
  Thorax
- B.
  
  Trachea
- C.
  
  Primary Bronchus
- D.
  
  Right lung
- E.
  
  Diaphragm
- F.
  
  Rib
- G.
  
  Bronchiole
- H.
  
  Abdominal Cavity
- I.
  
  Intercostal Muscle
17.

What is structure h?
- A.
  
  Thorax
- B.
  
  Trachea
- C.
  
  Primary Bronchus
- D.
  
  Right lung
- E.
  
  Diaphragm
- F.
  
  Rib
- G.
  
  Bronchiole
- H.
  
  Abdominal Cavity
- I.
  
  Intercostal Muscle
18.

What is structure e?
- A.
  
  Thorax
- B.
  
  Trachea
- C.
  
  Primary Bronchus
- D.
  
  Right lung
- E.
  
  Diaphragm
- F.
  
  Rib
- G.
  
  Bronchiole
- H.
  
  Abdominal Cavity
- I.
  
  Intercostal Muscle
- J.
  
  Alveoli

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