Respiratory system review

what is the correct organizational sequence of lung inspiration?

1. 1. diaphragm and intercostal muscles contract

2. 2. the size of the thoracic cavity increases

3. 3. external air is pulled into the lungs due to an increase in intrapulmonary volume

• 3,2,1

• 1,2,3

• 2,1,3

• 3,2,1

What would increase the rate of oxygen exchange in the alveoli of the lungs?

• increase in hemoglobin in the bloodstream

• decrease in erythrocytes in the bloodstream

• increase in oxygen concentrations in pulmonary capillaries

• decrease in pulmonary surfactant in the alveoli

Adam is inhaling. Which of the following is true regarding this process?

• pressure inside lungs increases

• volume and pressure both decrease

• volume will decrease and pressure will increase

• volume will increase and pressure will decrease

Which molecules transport the majority of the carbon dioxide in the blood?

• bicarbonate ions

• carbohemoglobin

• hydrogen ions

• oxyhemoglobin

What is the process called when air moves in and out of the lungs?

• internal respiration

• external respriation

• internal ventilation

• pulmonary ventilation

In humans, what process allows the gas exchange of both oxygen and carbon dioxide through the respiratory membrane?

• simple diffusion

• passive transport

• active transport

• osmosis

A problem with the secretion of pulmonary surfactant would cause which of the following problems to occur?

• Lungs would leak fluid into other cavities.

• Overinflation of the alveoli would occur following exhalation.

• Gas diffusion rates would decrease in the alveoli.

• Filling of the pleural cavity with fluid would be prevented.

Tags

NGSS.MS-LS1-3

which number represents the site where gas exchange occurs?

• 5

• 11

• 10

• 6

Tags

NGSS.MS-LS1-3

What is #3 pointing to?

• thorax

• nasal passage

• bronchi

• larynx(voice box)

The exchange of gases between the outside environment and the human body occurs at the __________.

• alveoli

• larynx(voice box)

• trachea

• nasal passageway