Cardiac, respiratory Flashcards
(140 cards)
Which one of the following statements regarding the left lung is TRUE?
The left lung has two lobes and one fissure
Which of the following describes the exchange of gases between the alveoli of the lungs and the pulmonary capillaries?
External respiration
Which of the following describes the exchange of gases between the atmosphere and the lungs?
Pulmonary ventilation
In which of the following structures does the exchange of oxygen and carbon dioxide occur?
Alveolus
The respiratory zone consists of all of the following except:
Terminal bronchioles
Deep inhalations and deep exhalations utilize what lung volumes?
Tidal volume, inspiratory reserve volume, and expiratory reserve volume
Which of the following structures conducts the passage of air, food, and liquids?
Oropharynx and laryngopharynx
Which one of the following gas laws states: the volume of a gas varies inversely with its pressure?
Boyle’s Law
Which one of the following gas laws states: the solubility of a gas in a liquid is proportional to the partial pressure of the substance over the liquid?
Henry’s Law
Which of the following determines the direction of gas movement?
Partial pressure gradient
What is the function of cilia in the nasal cavities?
trap dust-filled mucus
Which of the following factors increase or improve hemoglobin’s affinity for Oxygen?
Low partial pressure of carbon dioxide
Which one of the following conditions does NOT affect the affinity of oxygen for hemoglobin?
The number of white blood cells
Which one of the following gas laws describes why humans are affected by altitude sickness or decompression sickness during diving?
Henry’s Law
Which one of the following lung capacities is described as: the volume of air moved in and out of the lungs in one breath while at rest?
Tidal volume
Which one of the following gases is found in the highest concentration in the air we breathe?
Nitrogen
Which one of the following statements describes the primary function of the Cerebral Cortex on our breathing?
The cortex allows voluntary alteration of our breathing pattern.
Which one of the following processes is defined as the diffusion of oxygen from the alveoli to the pulmonary capillaries and carbon dioxide from the capillary into the alveoli?
Pulmonary gas exchange
Which one of the following statements CORRECTLY describes Gas Exchange?
It is the movement of O2 into the tissues and the waste product CO2 out of the tissue.
Which one of the following conditions is responsible for normal exhalation?
Elastic recoil
Which one of the following muscles is the main muscle of respiration?
Diaphragm
Which one of the following cells produces surfactant in the lungs?
Type 2 alveolar cells
Which of the following is FALSE regarding the alveoli of the lungs?
The respiratory membrane is very thick in order to provide structural support to the alveoli
Which one of the following structures of the airway is called the voice box?
Larynx