Question

which of the following statements correctly describes what happens to the diaphragm during an inhalation, when the lungs inflate?
a) the diaphragm expands.
b) the diaphragm returns to its resting state.
c) the diaphragm only moves during exhale.
d) the diaphragm contracts and flattens.
question 2 (5 points)
listen
which of the following conditions occurs when blood flow to the brain is interrupted and is a risk of high blood pressure?
a) heart disease
b) atherosclerosis
c) stroke

Explanation:

Question 1

To determine the correct statement about the diaphragm during inhalation:

• Option A: The diaphragm does not expand; it contracts. Eliminate A.
• Option B: Returning to resting state is exhalation, not inhalation. Eliminate B.
• Option C: The diaphragm moves during both inhale and exhale. Eliminate C.
• Option D: During inhalation, the diaphragm contracts and flattens, increasing thoracic volume for lung inflation. This is correct.

To identify the condition from interrupted brain blood flow and high blood pressure risk:

• Option A: Heart disease affects the heart, not direct brain blood flow interruption. Eliminate A.
• Option B: Atherosclerosis is artery hardening, a risk factor, not the direct condition of interrupted brain blood flow. Eliminate B.
• Option C: A stroke occurs when blood flow to the brain is interrupted, and high blood pressure is a risk factor for stroke. This is correct.

Answer:

D) The diaphragm contracts and flattens.

Question 2