62 Questions
Which of the following is not part of the upper respiratory system?
Bronchi
Where is the olfactory mucous membrane located?
Upper nostrils
What is the main function of the respiratory mucous membrane?
Warming and moistening the air
What separates the nasal cavity?
Septum
How does air enter the respiratory system?
Through the nostrils
What is the function of the nasal passage?
To allow air to enter and leave the respiratory system
Which part of the respiratory system includes the nose and nasal cavity?
Upper respiratory system
What is the function of the olfactory mucus membrane?
Reception of olfactory stimuli
Which structure separates the two nasal cavities?
Basal Septum
What is the primary function of the respiratory mucous membrane?
Warming, moistening, and cleaning inspired air
Which bones project from the lateral wall of each nasal cavity?
Conchas
Which part of the mucous membrane lines the upper surface of the superior concha and the spheno-ethmoid?
Olfactory mucus membrane
Which of the following is part of the upper respiratory system?
Pharynx
What function do the hairs and mucus inside the nostrils serve?
They block the entry of dust
What is the lower-most part of the nasal cavity called?
Respiratory mucous membrane
What lines the small airways in the respiratory system?
Mucous membrane
Which part of the respiratory system is made of skin and cartilage?
Nasal cavity
What can become thicker and is expelled by a lifting hand motion when the body is in a cold environment?
Mucus
Which of the following is a part of the upper respiratory system?
Larynx
What function do the vibrissae in the nose serve?
Block the entry of dust
What makes up the nasal septum?
Ethmoid bone and vomer
Which membrane is responsible for warming, moistening, and cleaning inspired air?
Respiratory mucous membrane
Where do the conchae project from?
Lateral wall of each nasal cavity
What is the function of the olfactory mucous membrane?
To receive olfactory stimuli
Which part of the respiratory system includes the trachea?
Lower Respiratory System
What is the main function of the olfactory mucous membrane in the nasal cavity?
Reception of olfactory stimuli
Which bone forms part of the nasal septum?
Ethmoid
What is the function of the respiratory mucous membrane?
To warm, moisten, and clean inspired air
What structures project from the lateral wall of each nasal cavity?
Conchae
Which part of the lower respiratory system is responsible for gas exchange?
Alveoli
What is the main function of the olfactory mucous membrane?
Reception of olfactory stimuli
Which part of the nasal cavity is lined by the respiratory mucous membrane?
Lower part of the nasal cavity
Which bone is part of the nasal septum?
Vomer
What are the conchae in the nasal cavity?
Bone projections
Which of these is part of the lower respiratory system?
Larynx
How do nasal hairs help in the respiratory process?
By blocking dust entry
Which part of the respiratory system includes the trachea?
Lower respiratory system
What is another name for the voice box?
Larynx
Which of the following is a primary function of the respiratory system?
To bring oxygen into the body and remove carbon dioxide from the body
What is the function of the olfactory mucous membrane?
To receive olfactory stimuli
Which bones make up the nasal septum?
Ethmoid bone and vomer
Which of the following is NOT a component of the respiratory system?
Kidneys
Which part of the respiratory system consists of bronchioles?
Lower respiratory system
Where does the gas exchange occur in the respiratory system?
Alveoli
What role does the nasal cavity play in the respiratory system?
It warms, humidifies, and filters the air
What is the function of the respiratory mucous membrane?
To warm, moisten, and clean inspired air
Which component of the respiratory system carries air to the bronchi?
Trachea
Which of the following helps the alveoli with gas exchange?
Capillaries
Which of the following statements about air pressure in the lungs during inspiration is true?
The pressure in the lungs is less than the pressure in the atmosphere
Which of the following is a correct description of the role of the diaphragm in respiration?
It contracts to increase the volume of the chest cavity
Which part of the respiratory system is responsible for the reception of olfactory stimuli?
Olfactory mucous membrane
What is the primary function of the respiratory mucous membrane?
To warm, moisten, & clean inspired air
Which structure in the nasal cavity helps to block the entry of dust?
Hairs inside the nostrils
Which part of the lower respiratory system is also known as the voice box?
Larynx
Which bones project from the lateral wall of each nasal cavity?
Conchae
Which of the following structures is part of the lower respiratory system?
Bronchioles
Which structure separates the two nasal cavities?
Nasal septum
Which part of the respiratory system warms, moistens, and cleans inspired air?
Respiratory mucous membrane
What is the function of the olfactory mucous membrane?
To receive olfactory stimuli
Which of the following parts is NOT part of the lower respiratory system?
Larynx
What are the shelf-like bones projecting from the lateral wall of each nasal cavity called?
Conchae
What type of mucous membrane lines the lower part of the nasal cavity?
Respiratory mucous membrane
Study Notes
Respiratory System
- The respiratory system has two parts: upper respiratory system and lower respiratory system.
Upper Respiratory System
- Consists of:
- Nose & Nasal cavity
- Pharynx
- Larynx
Lower Respiratory System
- Consists of:
- Trachea
- Bronchi
- Bronchioles
- Alveoli
Nose & Nasal Cavity
- Air enters and leaves the respiratory system through the nose.
- Made of bone and cartilage.
- Covered with skin.
- Hairs inside the nostrils help block the entry of dust.
- The two nasal cavities are within the skull, separated by the nasal septum.
- Shelf-like bones called conchae project from the lateral wall of each nasal cavity.
Mucous Membrane
- Lines the nasal cavity.
- Two mucous membranes:
-
Olfactory mucous membrane:
- Lines the upper surface of the superior concha & the sphenoid ethmoid.
- Function: Reception of olfactory stimuli.
-
Respiratory mucous membrane:
- Lines the lower part of the nasal cavity.
- Function: To warm, moisten, & clean inspired air.
-
Olfactory mucous membrane:
Pharynx
- Passageway for food and air from the nasal cavity to the larynx.
Larynx
- Protected by the epiglottis.
Trachea
- Carries air to the two main branches of air tubes called the bronchi.
Bronchi
- Divides into smaller branches called bronchioles.
Bronchioles
- Terminate in tiny air sacs called the alveoli.
- Site of gas exchange.
Alveoli
- Sites of gas exchange.
- Oxygen moves from the alveoli into the bloodstream, while carbon dioxide moves from the bloodstream into the alveoli.
Learn about the different parts of the respiratory system, including the upper and lower respiratory systems, and their functions. Identify the components of the nose and nasal cavity.
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