Learning Objectives - Respiratory System

The functions of the respiratory system include which of the following?

• Exchange of gases between the body and the environment

• Production of digestive enzymes

• Regulation of blood sugar levels

• Secretion of hormones for growth

Pulmonary ventilation, respiration, and oxygenation are distinguished as follows:

• Pulmonary ventilation is the movement of air in and out of the lungs, respiration is the exchange of gases, and oxygenation is the addition of oxygen to the blood.

• Pulmonary ventilation is the exchange of gases, respiration is the movement of air, and oxygenation is the removal of carbon dioxide.

• Pulmonary ventilation is the addition of oxygen to the blood, respiration is the movement of air, and oxygenation is the exchange of gases.

• Pulmonary ventilation is the removal of carbon dioxide, respiration is the addition of oxygen, and oxygenation is the movement of air.

External and internal respiration can be explained as:

• External respiration is the exchange of gases between the lungs and blood, while internal respiration is the exchange of gases between blood and body tissues.

• External respiration is the breakdown of glucose in cells, while internal respiration is breathing in oxygen.

• External respiration is the process of inhaling air, while internal respiration is the process of exhaling air.

• External respiration is the movement of blood through the heart, while internal respiration is the movement of blood through the lungs.

What is the respiratory system (pulmonary system)? Fill in the blank: The respiratory system is a network of organs and tissues that help the body take in ______ and expel waste gases.

• oxygen

• carbon dioxide

• glucose

• water

Which of the following is a primary function of the respiratory system?

• A) Digestion

• B) Breathing (pulmonary ventilation)

• C) Circulation

• D) Excretion

Fill in the blank: The respiratory system helps regulate ______ exchange with the body.

• gas

• nutrient

• liquid

• heat

Producing sounds using the vocal cords is a function of the respiratory system.

• True

• False

How does the respiratory system help maintain body temperature?

• By producing sweat

• By removing excess heat through exhalation

• By shivering

• By increasing blood flow

Fill in the blank: The respiratory system houses the sensory neurons for the sense of ______.

• smell

• taste

• hearing

• touch

Which process ensures that oxygen is provided to the body and carbon dioxide is removed?

• Digestion

• Pulmonary ventilation

• Circulation

• Excretion