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RESPIRATORY CHAPTER #22 EXAM QUESTIONS WITH COMPLETE ANSWERS
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RESPIRATORY CHAPTER #22 EXAM QUESTIONS WITH COMPLETE ANSWERS
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RESPIRATORY CHAPTER #22 EXAMQUESTIONS WITH COMPLETE
ANSWERS
respiration - Answer-can mean ventilation of the lungs (breathing) or the use of oxygen
in cellular metabolism
respiratory system - Answer-is an organ system that rhythmically takes air and expels it
from the body, thereby supplying the body with oxygen and expelling the carbon dioxide
functions of the respiratory system - Answer-1. gas exchange
2. communication
3. olfaction
4. acid-base balance
5. blood pressure regulation
6. blood and lymph flow
7. blood filtration
8. expulsion of abdominal contents
9. platelet production
gas exchange - Answer-it provides for oxygen and carbon dioxide exchange between
the blood and air
is the physiological process of diffusion where oxygen moves from the lungs to the
bloodstream during inhalation, and carbon dioxide moves from the blood to the lungs
from removal during exhalation
and exchanged between blood and air
communication - Answer-it serves for speech and other vocalization (laughing, crying)
speech and other vocalizations
olfaction - Answer-it provides the sense of smell, which is important in social
interactions, food selection, and avoiding danger (such as a gas leak or spoiled food)
sense of smell
acid base balance - Answer-By eliminating CO2, it helps to control the pH of the body
fluids. Excess CO2 reacts with water and generates carbonic acid; therefore, if
respiration doesn't keep pace with CO2 production, acid accumulates and the body
fluids have an abnormally low pH (acidosis)
,influences pH of body fluids by eliminating C02
blood pressure regulation - Answer-
platelet production - Answer-more than half of one's blood platelets are made by
megakaryocytes in the lungs (not in bone marrow)
blood and lymph flow - Answer-
blood filtration - Answer-the lungs filter small blood clots from the bloodstream and
dissolve them, preventing clots from obstructing more vital pathways such as coronary,
cerebral, and renal circulation
lungs filter small clots
Explosion of abdominal contents - Answer-
what is the function of the respiratory system? - Answer-to take in oxygen and expel
carbon dioxide
what are the different subprocesses of respiration? - Answer-pulmonary ventilation,
external respiration, transport of respiratory gases, and internal respiration
what is pulmonary respiration? - Answer-"breathing" brining in oxygen and exhaling
carbon dioxide
What system performs pulmonary respiration and external respiration? - Answer-
pulmonary system
What is external respiration? - Answer-the exchange that occurs at the lungs: carbon
dioxide leaving the blood and oxygen entering the blood
what is the transportation of respiratory gases - Answer-the transport of CO2 out of
tissues and O2 in
what is internal respiration - Answer-the exchange that occurs at the capillaries: picking
up C02 and dropping off 02
what system performs transportation of respiratory gases and internal respiration? -
Answer-the circulatory system
what are the anatomical components of the respiratory system? - Answer-nose, nasal
cavity, paranasal sinuses, pharynx, larynx, trachea, bronchi, and lungs. Within the
lungs, air flows along a dead-end of pathway consisting essentially of bronchi,
bronchioles, and alveoli
, Choose all that are functions of the respiratory system.
Multiple select question.
Influences calcium metabolism
Supplies the body with oxygen
Functions in vocalization and speech
Plays a role in regulating blood pressure
Assists in the removal of carbon dioxide - Answer-Supplies the body with oxygen
Functions in vocalization and speech
Plays a role in regulating blood pressure
Assists in the removal of carbon dioxide
What is the aveoli? - Answer-incoming air stops in this (millions of tiny, thin-walled air
sacs), exchanges gases with the bloodstream through the alveolar wall, and then flows
back out
what are the 2 portions/zones of the respiratory system? - Answer-the conducting zone
and the respiratory zone
what is the function of the conducting zone? - Answer-Brings air in and out. Humidifies,
warms, and filters air.
to conduct or bring air into the body while simultaneously humifidying, warming, and
filtering the air before it hits the respiratory zone
serve only for airflow, essentially from the nostril through the major broncioles.
The walls of theses passages are too thick for adequate diffusion of oxygen from the air
into the blood
nostrils, pharnxy, larnyx, trachea, and main bronchi
pathway of air flow in and out
where is the conducting zone? - Answer-from the nose to the pharynx and through the
major bronchioles
Which zone of the respiratory system serves only for airflow? It is incapable of gas
exchange between the air and the circulatory system.
Multiple choice question.
Respiratory zone
Conducting zone - Answer-Conducting zone
Which structures are part of the conducting zone of the respiratory system?
Multiple select question.
Main bronchi
Alveoli
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