During atrial systole, the atria are ___ the ventricles are ___ the AV valves are ___ and the SL valves are ___

Correct Answer: B

Rationale: During atrial systole, atria contract, ventricles relax, AV valves are open (filling ventricles), and semilunar (SL) valves are closed (B). A is ventricular systole, C/D mismatch phases.

Correct Answer: A

Rationale: Mean arterial pressure (MAP, A) averages arterial BP over time (MAP = diastolic + 1/3 pulse pressure). Stroke volume (B) is volume, resistance (C) is a factor, and pulse pressure (D) is systolic-diastolic.

Correct Answer: A

Rationale: Common pulse points are the carotid (neck) and radial (wrist) arteries (A). Ulnar (B, D) is less common, and jugular (C) is a vein, not an artery.

Correct Answer: C

Rationale: The hepatic portal vein (C) carries nutrient-rich, oxygen-poor blood from the GI tract to the liver. Hepatic artery (B) supplies oxygen, aorta (A) is systemic, renal (D) is kidneys.

Correct Answer: B

Rationale: The diaphragm is supplied by phrenic arteries (B) from the aorta. Coronary (A) supplies the heart, renal (C) the kidneys, and vasa vasorum (D) vessel walls.