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Anatomy & Physiology Midterm > Chapter 21 > Flashcards

Chapter 21 Flashcards

1
Q

Which of the following airways is located between the larynx and primary bronchi?

A

Trachea

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2
Q

Which of the following factors does not effect the rate of external respiration?

A

Volume of the alveolus

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3
Q

Which of the following is not an necessary event to supply the body with oxygen and remove carbon dioxide?

A

Blood pH adjustment

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4
Q

Air moves out of the lungs because:

A

the volume of the lungs decreases with expiration

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5
Q

Most of the oxygen transported by the blood is:

A

bound to hemoglobin

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6
Q

Surfactant prevents the alveoli from collapsing by:

A

interfering with the cohesiveness of of water molecules, thereby reducing the surface tension of the alveoli.

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7
Q

Boyle’s law describes gas volume as which of the following?

A

Inversely proportional to pressure.

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8
Q

The right lungs is divided into how many lobes?

A

3

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9
Q

Which of the following results from inadequate surfactant production and is associated with alveolar collapse?

A

Respiratory distress syndrome.

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10
Q

The larynx is made up of how many cartilages?

A

9

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11
Q

Which of the following occurs when, a newborn, at birth takes its first breaths?

A

The pressure in the lungs decreases?

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12
Q

Which of the following occurs in emphysema?

A

Destruction of the alveoli and bronchioles.

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13
Q

Which of the following is a function of the nasal conchae?

A

To create turbulence in the air to trap small particulates in mucus.

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14
Q

Which of the following is not a function of the nasal cavity?

A

Acting as a reservoir during coughing

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15
Q

Which of the following cannot elevate the ribs?

A

External oblique

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16
Q

The left lung consists of how many lobes?

A

2

17
Q

Which of the following are the main sites of gas exchange in the pulmonary tract?

A

Alveoli

18
Q

Sympathetic stimulation to the smooth muscle tissue layer in the bronchioles causes which of the following?

A

Bronchodilation

19
Q

The dead space has a volume of approximately:

A

150 mL.

20
Q

Which of the following is true about the glottis?

A

It is the opening to the larynx.

21
Q

Normal breathing is called:

A

eupnea

22
Q

Tension on the vocal cords is regulated by which of the following?

A

Intrinsic laryngeal muscles

23
Q

The average respiratory rate in a normal adult is:

A

12 to 15 respirations per minute.

24
Q

The primary bronchi are found near the level of which thoracic vertebra?

A

Fifth

25
Q

The relationship between pH and the hemoglobin saturation curve is called:

A

the Bohr effect

26
Q

The respiratory membranes consists primarily of which of the following?

A

Simple squamous epithelium

27
Q

Which of the following is true about the partial pressure of oxygen?

A

It is lower in the tissues

Anatomy & Physiology Midterm (10 decks)

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