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WorksheetsYour Lungs & Respiratory System
Total questions: 18
Worksheet time: 9mins
What happens during exhalation?
The diaphragm moves down, and the chest wall muscles contract, making the chest cavity larger and pulling air in.
The diaphragm moves up, and the chest wall muscles relax, making the chest cavity smaller and pushing air out.
The diaphragm remains still, and the chest wall muscles tighten, preventing air from leaving the lungs.
The diaphragm moves sideways, and the chest wall muscles expand, allowing more air to enter.
What do the lungs and respiratory system do?
They allow us to breathe by bringing oxygen into our bodies and sending carbon dioxide out.
They help in digestion by breaking down food.
They circulate blood throughout the body.
They filter toxins from the bloodstream.
What is the epiglottis?
A flap of tissue that covers the air passage when swallowing to prevent food from entering the lungs.
A muscle that helps in the movement of the tongue.
A type of cartilage found in the ear.
A gland that produces saliva.
What is the pharynx?
A part of both the digestive and respiratory systems that carries food and air.
A muscle that helps in swallowing food only.
An organ responsible for producing sound.
A tube that connects the stomach to the mouth.
What is the esophagus?
A tube that carries food to the stomach.
A muscle that helps in breathing.
An organ that produces bile.
A part of the small intestine.
What is the thorax?
The abdominal cavity that contains the stomach and intestines.
The chest cavity that houses the bronchial tree, lungs, heart, and other structures.
The area of the body that includes the head and neck.
The lower part of the body that contains the pelvis and legs.
How do the lungs work when you breathe in?
The diaphragm moves down, and the rib muscles pull the ribs up and out, making the chest cavity bigger and pulling air into the lungs.
The diaphragm relaxes, and the rib muscles push the ribs down and in, reducing the chest cavity and pushing air out of the lungs.
The diaphragm remains still, and the rib muscles contract, causing the chest cavity to stay the same size while air is forced into the lungs.
The diaphragm moves up, and the rib muscles pull the ribs down and in, creating a vacuum that draws air into the lungs.
What are alveoli?
Tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged.
Large tubes that carry air to the lungs.
Muscles that help in the expansion of the lungs.
Cells that produce mucus in the respiratory system.
What is the pleura?
A thin lining that covers the lungs.
A type of lung disease.
A muscle that aids in breathing.
A part of the heart.
What is the trachea?
A muscle that helps in breathing
Also known as the windpipe, it is a tube that carries air to the bronchi and is kept open by rings of cartilage.
A part of the digestive system that processes food
A small air sac in the lungs where gas exchange occurs.
What is the diaphragm?
A large muscle at the bottom of the thorax that helps with breathing.
A type of respiratory disease affecting the lungs.
A bone structure that supports the rib cage.
A membrane that separates the abdominal cavity from the thoracic cavity.
How does air enter the respiratory system?
Through the nose or mouth, where it is warmed and humidified.
Through the skin, where it is absorbed directly into the bloodstream.
Through the ears, where it is filtered by earwax.
Through the eyes, where it is converted into tears.
What is diffusion in the lungs?
Oxygen moves from the alveoli to the blood through capillaries, and carbon dioxide moves from the blood to the alveoli.
Oxygen is absorbed directly into the lung tissue without entering the blood.
Carbon dioxide is expelled from the lungs without any exchange with the blood.
Oxygen and carbon dioxide are exchanged in the trachea before reaching the lungs.
What are bronchi and bronchioles?
Bronchi are air tubes that connect to the lungs, and bronchioles are smaller tubes within the lungs.
Bronchi are the main blood vessels supplying the heart, and bronchioles are the smallest arteries in the body.
Bronchi are the muscles that help in breathing, and bronchioles are the nerves that control them.
Bronchi are the outer layers of the lungs, and bronchioles are the protective membranes surrounding them.
What is the larynx?
A part of the respiratory system that filters air
Also known as the voice box, it contains vocal cords that vibrate to make sounds.
A muscle that helps in swallowing food
An organ responsible for producing hormones
What is the role of hemoglobin in respiration?
Hemoglobin helps in the digestion of food.
Hemoglobin in red blood cells picks up oxygen from the lungs and carries it to the body's tissues.
Hemoglobin is responsible for the production of carbon dioxide in the body.
Hemoglobin regulates the body's temperature.
What are the main parts of the respiratory system?
Nose, mouth, throat (pharynx), voice box (larynx), windpipe (trachea), and lungs.
Heart, arteries, veins, and capillaries.
Stomach, intestines, liver, and pancreas.
Skin, hair, nails, and sweat glands.
What is respiration?
The process of photosynthesis in plants.
The exchange of oxygen and carbon dioxide in the lungs and respiratory system.
The breakdown of glucose in the mitochondria.
The circulation of blood throughout the body.
