Pathophysiology Quiz
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, Chapter 7 Principles of Pathophysiology Quiz
Study online at https://quizlet.com/_ecas4c
1. 1) In Type 1 diabetes, which gland Answer: C
does not secret enough of the hor- Explanation: A) INCORRECT. The thyroid gland does not
mone insulin? secrete insulin.
A) Thyroid B) INCORRECT. The adrenal glands do not secrete in-
B) Adrenal glands sulin.
C) Pancreas C) CORRECT. In Type 1 diabetes, the pancreas does not
D) Pituitary secrete enough of the hormone insulin.
D) INCORRECT. The pituitary gland does not secrete in-
sulin.
Page Ref: 180
Objective: 7.6
2. 2) The volume of air that is moved Answer: B
in and out of the chest in a normal Explanation: A) INCORRECT. Air volume moved during the
breath cycle is called: breathing cycle is not called vital
A) vital capacity. capacity.
B) tidal volume. B) CORRECT. The volume of air moved in one in-and-out
C) expiration. cycle of breathing is called the tidal
D) inspiration. volume.
C) INCORRECT. Expiration is another term for exhalation,
which is the air breathed out at the
end of the breathing cycle.
D) INCORRECT. Only the first part of the breathing cycle
is called inspiration, when air is
drawn into the body.
Page Ref: 164
Objective: 7.2
3. 3) Not all inspired air reaches the Answer: D
alveoli; 150 mL is stopped in the Explanation: A) INCORRECT. The air in the airway that
airway leading to the alveoli. never reaches the alveoli is not known
This is called: as vital capacity.
, Chapter 7 Principles of Pathophysiology Quiz
Study online at https://quizlet.com/_ecas4c
A) vital capacity. B) INCORRECT. Because the inspired air that doesn't
B) bronchial air. reach the alveoli is found throughout the
C) tidal volume. lower and upper airways, it is not referred to as just
D) dead air space. bronchial air.
C) INCORRECT. The total volume of air moved in one
in-and-out cycle of breathing is called
the tidal volume.
D) CORRECT. Air that occupies the space between the
mouth and alveoli but that does not
actually reach the area of gas exchange is call dead air
space.
Page Ref: 164
Objective: 7.2
4. 4) In normal exhalation, the di- Answer: C
aphragm and intercostal muscles Explanation: A) INCORRECT. Inspiration is another term
relax to contract the chest, which for inhaling, which occurs when the
creates a positive pressure. This is diaphragm contracts and the intercostal muscles ex-
what type of process? pand.
A) Inspiration B) INCORRECT. An active process requires effort; relax-
B) Active ation of muscles is not active.
C) Passive C) CORRECT. Exhalation is normally a passive process. To
D) Respiration exhale, the diaphragm and
intercostal muscles relax to make the chest contract, cre-
ating a positive pressure that pushes air
out.
D) INCORRECT. The term respiration refers to the entire
breathing cycle, not just to the
exhalation process.
Page Ref: 165
Objective: 7.2
, Chapter 7 Principles of Pathophysiology Quiz
Study online at https://quizlet.com/_ecas4c
5. 5) Carbon dioxide is transported Answer: D
back to the lungs via: Explanation: A) INCORRECT. White blood cells do not
A) white blood cells. carry carbon dioxide.
B) oncotic pressure. B) INCORRECT. Oncotic pressure is related to proteins in
C) hydrostatic pressure. plasma, not carbon dioxide
D) plasma. transportation.
C) INCORRECT. When the heart beats, the pressure cre-
ated tends to push fluid back out of the
blood vessels toward the cells and is called hydrostatic
pressure.
D) CORRECT. Carbon dioxide is dissolved in the blood
plasma and transported back to the
lungs.
Page Ref: 168
Objective: 7.2
6. 6) The pressure that is created Answer: D
within the blood vessels when the Explanation: A) INCORRECT. The term hyperstatic pres-
heart beats is called: sure is not generally used in reference
A) hyperstatic pressure. to circulation.
B) osmotic pressure. B) INCORRECT. Osmotic pressure relates to the fluid lev-
C) oncotic pressure. els of the cells, not to circulatory
D) hydrostatic pressure. pressure.
C) INCORRECT. When large proteins attract water from
the spaces between the cells and back
into the bloodstream it is known as oncotic pressure.
D) CORRECT. When the heart beats, it creates hydrostatic
pressure which pushes fluid back out
of the blood vessels toward the cells.
Page Ref: 169
Objective: 7.2