Anatomy 2 Quiz

Topics: Respiratory system, Hypoxia, Oxygen Pages: 5 (638 words) Published: October 19, 2014
Which of the following is not a function of the nasal conchae and mucosa? Which of the following is not a function of the nasal conchae and mucosa?
Heat and moisten the air entering the nasal cavity.

Extract heat and moisture from the air leaving the nasal cavity.
Destroy pathogens entering the nasopharynx.

Filter the air entering the nasal cavity.

Which of the following respiratory structures is more commonly known as the "throat"? Which of the following respiratory structures is more commonly known as the "throat"?
Trachea

Larynx

Pharynx

Esophagus

Which of the following are the two main functions of the larynx. Which of the following are the two main functions of the larynx.
Voice production; to provide a patent airway

Voice production; to act as a switching mechanism to route air and food into the proper channels.
Voice production; stimulation of the "cough" reflex

To provide a patent airway; to act as a switching mechanism to route air and food into the proper channels.

The _________________ is also known as the "guardian of the airways". The _________________ is also known as the "guardian of the airways".
glottis

epiglottis

vestibular folds

larynx
The smallest subdivisions of the lung visible with the naked eye are the _____________, which appear to be connected by black carbon in smokers. The smallest subdivisions of the lung visible with the naked eye are the _____________, which appear to be connected by black carbon in smokers.

pleura

lobes

lobules

pulmonary hila

Quiet inspiration is ____________, and quiet expiration is ______________. Quiet inspiration is ____________, and quiet expiration is ______________.
a passive process; also a passive process

an active process; a passive process

an active process; also an active process

a passive process; an active process

Which form of hypoxia reflects poor O2 delivery resulting from too few RBCs or from RBCs that contain abnormal or too little hemoglobin? Which form of hypoxia reflects poor O2 delivery resulting from too few RBCs or from RBCs that contain abnormal or too little hemoglobin?

Ischemic (stagnant) hypoxia

Histotoxic hypoxia

Hypoxemic hypoxia

Anemic hypoxia

Which form of CO2 transport accounts for the least amount of CO2 transported in blood? Which form of CO2 transport accounts for the least amount of CO2 transported in blood?
Dissolved in plasma

As bicarbonate ion in plasma

As carbon monoxide in plasma

Chemically bound to hemoglobin

Which of the following is the most powerful respiratory stimulant? Which of the following is the most powerful respiratory stimulant?

Low oxygen levels

Rising CO2 levels

Low CO2 levels

Arterial pH

The structures within the respiratory system's conducting zone include the trachea and the paranasal sinuses. The structures within the respiratory system's conducting zone include the trachea and the paranasal sinuses.

True

False

The alveoli are also known as alveolar sacs.
The alveoli are also known as alveolar sacs.

True

False

Dalton's law of partial pressures states that the total pressure exerted by a mixture of gases is the sum of the pressures exerted independently by each gas in the mixture. Dalton's law of partial pressures states that the total pressure exerted by a mixture of gases is the sum of the pressures exerted independently by each gas in the mixture.

True

False
Dalton's law of partial pressures states that when a gas is in contact with a liquid, that gas will dissolve in the liquid in proportion to its partial pressure. Dalton's law of partial pressures states that when a gas is in contact with a liquid, that gas will dissolve in the liquid in proportion to its partial pressure.

True

False

Emphysema is distinguished by permanent shrinkage of the alveoli. Emphysema is distinguished by permanent shrinkage of...
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