WorksheetsHuman Respiratory System
Total questions: 29
Worksheet time: 15mins
What is the primary function of the system shown in the image?
To circulate blood throughout the body
To digest food
To exchange gases (oxygen and carbon dioxide)
To filter waste from the blood
What is causing the blood cells to turn bright red?
The blood cells are dying
The blood cells are carrying oxygen
The blood cells are losing oxygen
The blood cells are infected
What does external respiration refer to?
The exchange of gases between the blood and the body tissues
The process of air entering the lungs and exchanging gases with the blood
The transport of oxygen by the blood to the body's tissues
The use of oxygen within the cells to produce energy
What is internal respiration?
The process of air entering the lungs
The exchange of gases between the blood and the body tissues
The transport of carbon dioxide from the tissues to the lungs
The inhalation of oxygen and exhalation of carbon dioxide
Where does cellular respiration occur within the cell?
Nucleus
Ribosome
Mitochondria
Golgi apparatus
What is the name of the structure that prevents food from entering the trachea?
Pharynx
Epiglottis
Larynx
Tongue
What is the role of the mucus membrane in the respiratory system?
To produce nasal concha
To filter out large particles from the digestive system
To warm and moisten air, and trap dust and other particles
To exchange gases directly into the bloodstream
What is the Heimlich maneuver used for?
To treat a heart attack.
To help someone who is drowning.
To save someone who is choking.
To stop a nosebleed.
What structures are inside the larynx?
goblet cells
vocal cords
alveoli
The heart
What is the function of the instrument shown in the image?
It is used to measure blood pressure
It is used to examine the ears
It is used to examine the larynx
It is used to check reflexes
What does the trachea lead to?
The esophagus
The bronchial tree
The heart
The diaphragm
What are the small air sacs in the lungs called?
Bronchioles
Capillaries
Alveoli
Arteries
How many lobes does the right lung have?
2 lobes
3 lobes
4 lobes
5 lobes
What is the cardiac notch?
A type of lung disease
A muscle in the heart
A space for the heart in the left lung
A valve in the heart
Where are the lungs situated?
In the abdominal cavity
In the pleural cavity
In the pericardial cavity
In the cranial cavity
What is the name of the muscle that plays a crucial role in the breathing process, located at the bottom of the chest cavity?
Biceps
Diaphragm
Pectoralis major
Latissimus dorsi
What causes elastic recoil, or exhalation, in the breathing process?
Contraction of the intercostals
Movement of the diaphragm
Relaxing the diaphragm
Contraction of other muscles
Why is the first breath in newborns particularly difficult?
Their intercostals are not yet developed.
They have an excess of surfactant.
They lack sufficient surfactant.
Their diaphragm is not fully functional.
What constitutes one respiratory cycle?
Two inhalations
One inhalation and one exhalation
Two exhalations
One exhalation only
What occurs when the muscles of the diaphragm change the pressure in the pleural cavity?
Air is pushed out of the lungs
The lungs collapse
Air from the outside enters the lungs
The respiratory rate decreases
What does spirometry measure?
The strength of respiratory muscles
The amount of oxygen in the blood
The amount of air moving in and out of the lungs
The speed of air flow in the respiratory tract
What is Resting Tidal Volume?
The maximum amount of air that can be inhaled
The amount of air that enters the lungs when taking a deep breath
The amount of air that enters the lungs when taking a normal breath
The amount of air that remains in the lungs after a forced exhalation
What does Vital Capacity refer to?
The amount of air that can be inhaled after a normal exhalation
The amount of air that can be forced in or out of the lungs by taking a deep breath
The amount of air that enters the lungs during a normal breath
The amount of air that remains in the lungs after a normal exhalation
What does the label 'A' represent on the spirometry graph?
Vital capacity
Tidal volume
Inspiratory reserve volume
Residual volume
What does the label 'B' indicate on the spirometry graph?
Vital capacity
Inspiratory reserve volume
Residual volume
Tidal volume
What does FEV1 stand for?
Forced expiratory volume in 1 minute
Forced expiratory volume in 1 second
Functional expiratory volume in 1 second
Forced essential volume in 1 second
What is FEV1 used as in the context of cystic fibrosis (CF)?
A treatment method for CF
A diagnostic tool for identifying CF
An established marker of CF disease progression
A genetic marker for CF
What is hyperventilation?
Decreased breathing, higher CO2 concentration
Increased breathing, higher CO2 concentration
Increased breathing, lower CO2 concentration
Decreased breathing, lower CO2 concentration
What process allows oxygen to enter the bloodstream through the respiratory membrane?
Osmosis
Active transport
Diffusion
Filtration
