Human Physiology Chapter 8: Respiratory System I

What is the uppermost part of the lung called?

Hilum
Cardiac notch
Cupola
Apex (correct)

What is the indentation through which blood vessels, main bronchi, lymphatic vessels, and nerves enter and leave the lungs?

Cardiac notch
Cupola
Apex
Hilum (correct)

What is the concavity in the left lung that accommodates the heart?

Cardiac notch (correct)
Apex
Hilum
Cupola

What is the smallest visible lung subdivision?

Lobule (A) Signup and view all the answers

What type of tissue supports the lung's functional structures?

Stroma (C) Signup and view all the answers

What is the surface of the lung in contact with the thoracic wall called?

Costal surface (C) Signup and view all the answers

What is the outer part of the balloon representative of in the analogy?

Parietal pleura (A) Signup and view all the answers

What is the function of the pleural fluid in the pleural cavity?

To act as a lubricant, ensuring minimal friction during breathing (B) Signup and view all the answers

How many chambers does the Pleura divide the thoracic cavity into?

3 (A) Signup and view all the answers

What is the visceral pleura a part of?

The same membrane as the parietal pleura (D) Signup and view all the answers

What type of epithelium is found in the superior portion of the larynx?

Stratified squamous (A) Signup and view all the answers

What is the space between the two layers of pleurae?

Pleural cavity (B) Signup and view all the answers

What type of cartilage is the epiglottis composed of?

Elastic cartilage (A) Signup and view all the answers

What is the function of the vocal ligaments?

To attach the arytenoid cartilages to the thyroid cartilage (C) Signup and view all the answers

What is the inner part of the balloon representative of in the analogy?

Visceral pleura (B) Signup and view all the answers

What determines the pitch of a person's voice?

The length and tension of the vocal cords (C) Signup and view all the answers

What is the function of the glottis?

To allow air to pass through the vocal cords (D) Signup and view all the answers

What is the purpose of Valsalva's maneuver?

All of the above (D) Signup and view all the answers

What is the primary function of internal respiration?

Producing energy by oxidizing glucose or other small molecules (D) Signup and view all the answers

What is the term for the process of taking oxygen from the air and returning carbon dioxide?

External respiration (D) Signup and view all the answers

How many times does a relaxed adult breathe on average per minute?

15 times (C) Signup and view all the answers

What is the primary function of the respiratory system in relation to the circulatory system?

Providing oxygen to the bloodstream and removing carbon dioxide (B) Signup and view all the answers

What is the term for the process of exchanging oxygen and carbon dioxide between the air and the blood in the lungs?

Gas exchange (B) Signup and view all the answers

What is the approximate volume of air ventilated by a relaxed adult in one minute?

6 liters (A) Signup and view all the answers

What is one of the functions of the separation between the thoracic cavity and the abdominal cavity?

To help prevent the mobile organs from interfering with each other (B) Signup and view all the answers

What is the name of the tubes that originate from the primary bronchi and supply air to the lobes of the lungs?

Secondary bronchi (D) Signup and view all the answers

Which of the following statements about the primary bronchi is TRUE?

They are supported by incomplete rings of cartilage (B) Signup and view all the answers

What is the name of the smallest airways that eventually lead to the alveoli?

Respiratory bronchioles (A) Signup and view all the answers

How many lobes and secondary bronchi does the right lung have?

Three lobes and three secondary bronchi (A) Signup and view all the answers

What is the name of the structure that the primary bronchi enter the lungs with?

Hilum (B) Signup and view all the answers