Intro to Nursing - Unit 4

What are the cup-shaped pouches of lung tissue, one cell thick, that are surrounded by tiny capillaries where gas exchange occurs?

• Trachea

• Brocnhi

• Bronchioles

• Alveoli

What explains that gases diffuse according to pressure gradients. Oxygen diffuses into the blood and carbon dioxide diffuses out of the blood.

• Ventilation

• Larynx

• Dalton's Law

• Cilia

Which of the following carries impulses between the central nervous system and the skeletal muscles to generate movement?

• Somatic nervous system

• Autonomic nervous system

• Brain stem

• Spinal cord

Which of the following describes that happens when inspiration occurs?

• The diaphragm relaxes, increasing the size of the chest cavity.

• Air moves out of the lungs

• The intrathoracic pressure decreases

• All of the above

Which of the following describes external respiration?

• Oxygen diffuses from the tissue cells into the blood

• Carbon dioxide diffuses from the tissue cells into the blood

• There is an exchange of gases between the lung alveoli and the blood capillaries

• All of the above

The only function your nose has is to smell.

• True

• False

How far should you push down with each compression?

• half and inch

• one inch

• two inches

• three inches

What should you do if the chest does not rise with each breath?

• Reopen the airway and try again

• Blow harder

• Stop rescue breath attempts

• None of the above

What happens to the heart during cardiac arrest?

• The heartbeat speed sup

• The heartbeat slows down

• The heart stops beating

• None of the above

The most serious skeletal injury can happen on which part of the body?

• Knee

• Elbow

• Spine

• None of the above