HCS 214 Week 3 Week Three Knowledge Check

Complete the University of Phoenix Material: Week Three Knowledge Checks

1.

Which gas is necessary for the body to generate energy from glucose?

Oxygen

Carbon dioxide

Nitrogen

Argon

2.

In the context of the respiratory system, which of the following statements is true?

The respiratory system is not associated with the heart and circulatory system.

The respiratory system’s primary role is to remove excess oxygen from the body.

The respiratory system carries carbon dioxide from the lungs to the body cells.

The respiratory system is primarily responsible for bringing oxygen into the bloodstream from the atmosphere.

3.

Which of the following is a difference between ventilation and respiration?

Ventilation is the movement of air into and out of the lungs, whereas respiration is the process of gas exchange.

Ventilation includes both the processes of internal and external respiration, whereas respiration only refers to the process of internal respiration.

Ventilation is the process by which oxygen is added to and carbon dioxide is removed from the blood, whereas respiration does not involve any gas exchange.

Ventilation refers to the process of breathing out, whereas respiration refers to the process of breathing in.

4.

What kind of cells in the epithelium layer line the nose and most of the airways of the upper respiratory tract?

Transitional epithelium

Stratified cuboidal epithelium

Pseudostratified ciliated columnar epithelium

Non-ciliated pseudostratified columnar epithelium

5.

Identify an accurate statement about the upper airway of the respiratory tract.

The upper airway begins at the nose and ends at the bronchioles.

The pharynx is not part of the upper airway of the respiratory tract.

The upper airway reduces the humidity of inspired gases.

The vocal cords mark the end of the upper airway of the respiratory tract.

6.

John is suffering from a respiratory condition that makes it difficult for him to breathe. On being admitted to the hospital, his doctors decide to proceed with endotracheal intubation to help him breathe. In the context of the anatomical structure of the tracheobronchial tree, which of the following statements is true?

The proper placement of the tube is easy because there is no difference in the angle of branching between the two sides of the tracheobronchial tree.

The left mainstem branches off at a 20-30 degree angle from the midline of the chest, so the tube is more likely to pass into the left lung.

The right mainstem branches off at a 40-60 degree angle from the midline of the chest, so the tube is more likely to enter the left lung.

The tube should be placed in such a way that it sits just above the carina for proper ventilation to take place.

7.

What substance, when released, causes the nasal mucosa to secrete excessive mucus in allergic rhinitis?

Serotonin

Adrenaline

Noradrenaline

Histamine

8.

Identify an accurate statement about pleural space problems.

A pneumothorax is a condition that is characterized by the buildup of pus in the pleural cavity.

An empyema is a condition in which there is an excessive buildup of blood in the pleural cavity.

A hydrothorax refers to the buildup of blood serum in the space between the parietal and visceral pleura.

A hemothorax refers to the buildup of air inside the thoracic cavity, but outside the lungs.

9.

Since the age of five, John has been experiencing repeated episodes of wheezing, breathlessness, chest tightness, and cough. These symptoms are usually triggered by dust, pollen, or intense physical activity and occur particularly at night and early in the morning. During these periods, John finds it difficult to inhale and even more difficult to exhale. These episodes usually resolve on their own, but have now increased in severity and require medication. Based on the information provided in this scenario, from what condition is John most likely suffering?

Allergic rhinitis

Sinusitis

Asthma

Tuberculosis

10.

What lung volume measurement is best described as the amount of air that moves into or out of the lungs at rest during a single breath?

Vital capacity

Tidal volume

Residual volume

Inspiratory capacity

11.

In the context of normal lung volumes and capacities, identify the accurate statement.

Tidal volume (VT)is the volume of air forcefully inspired beyond a normal inspiration.

Residual volume (RV) is the amount of gas that moves into and out of the lungs at rest during a single breath.

Functional residual capacity (FRC) is equal to the sum of inspiratory reserve volume and tidal volume.

Expiratory reserve volume (ERV) refers to the amount of gas that is forcefully exhaled beyond a normal expiration.

12.

Jacob is an asthmatic patient. His condition has been increasing in severity in spite of medical treatment. To monitor his condition, Jacob’s doctor advises Jacob to undergo pulmonary function testing. When Jacob is made to undergo the peak expiratory flow rate (PEFR) test, which of the following is most likely to happen?

The doctor will try to decipher whether the airways have become broader than normal.

The doctor will measure the amount of air remaining in Jacob’s lungs at the end of a normal expiration.

The doctor will measure Jacob’s forced expiratory volume in one second.

The doctor will measure the maximum speed at which Jacob can rapidly expel air after taking the deepest possible breath.