Chapter 8 Flashcards
What is the primary function of the respiratory system?
To facilitate the exchange of gases, primarily oxygen and carbon dioxide.
True or False: The human respiratory system includes the lungs, trachea, and diaphragm.
True
Fill in the blank: The process of breathing in is called ______.
inhalation
What is the role of the diaphragm in respiration?
The diaphragm contracts and relaxes to help move air in and out of the lungs.
Which organ is responsible for the exchange of gases in humans?
Lungs
What are the tiny air sacs in the lungs called?
Alveoli
Multiple choice: Which gas do humans primarily exhale?
Carbon dioxide
What is the term for the windpipe that conducts air to the lungs?
Trachea
True or False: Fish use gills for respiration.
True
Fill in the blank: In insects, the respiratory system consists of a network of ______.
tracheae
What is the primary respiratory organ in amphibians?
Lungs and skin
Multiple choice: What structure prevents food from entering the trachea during swallowing?
Epiglottis
What is the main difference between aerobic and anaerobic respiration?
Aerobic respiration requires oxygen, while anaerobic respiration does not.
True or False: The process of gas exchange occurs in the bronchi.
False
What is the function of the nasal cavity in respiration?
To filter, warm, and humidify the incoming air.
Fill in the blank: The movement of air out of the lungs is called ______.
exhalation
What is the name of the muscle that separates the thoracic cavity from the abdominal cavity?
Diaphragm
Multiple choice: Which animal uses lungs for respiration?
Mammals
What is the primary respiratory pigment in human blood?
Hemoglobin
True or False: The respiratory system also plays a role in regulating body temperature.
True
Fill in the blank: The exchange of gases between the blood and body cells is called ______.
internal respiration
What is the role of cilia in the respiratory system?
To trap and move particles out of the respiratory tract.
Multiple choice: Which of the following is NOT a part of the respiratory system?
Esophagus
What is the term for the air passages that branch from the trachea into the lungs?
Bronchi
True or False: Amphibians can respire through their skin.
True
Fill in the blank: The ______ system in birds is more efficient than in mammals.
respiratory
What type of respiration occurs in the absence of oxygen?
Anaerobic respiration
Multiple choice: Which part of the brain controls the rate of breathing?
Medulla oblongata
What is the primary function of the alveoli?
To facilitate gas exchange between air and blood.
True or False: The larynx is also known as the voice box.
True
Fill in the blank: The process of oxygen moving from the lungs to the blood is called ______.
external respiration
What is the term for the inflammation of the lungs caused by infection?
Pneumonia
Multiple choice: Which of the following animals primarily uses gills for respiration?
Fish
What is the role of surfactant in the lungs?
To reduce surface tension in the alveoli and prevent collapse.
True or False: The respiratory system is responsible for the production of sounds.
True
Fill in the blank: The ______ is the largest organ of the respiratory system.
lung
What is the primary purpose of the mucus in the respiratory system?
To trap dust and microorganisms.
Multiple choice: Which structure helps to regulate airflow in the respiratory system?
Bronchioles
True or False: The respiratory system does not play a role in the immune response.
False
Fill in the blank: The exchange of gases in the alveoli occurs through ______.
diffusion
What is the effect of exercise on the respiratory rate?
It increases the respiratory rate.
Multiple choice: Which of the following gases is primarily responsible for stimulating breathing?
Carbon dioxide
What is the name of the condition characterized by difficulty in breathing?
Dyspnea
True or False: The human respiratory system is a closed system.
False
