Identify the blood vessel that is generally used to determine blood pressure with a sphygmomanometer.

Correct Answer: C

Rationale: The brachial artery (C) in the upper arm is used with a sphygmomanometer (cuff) to measure BP. Radial (A) is for pulse, subclavian (B) is deep, and carotid (D) is in the neck.

Correct Answer: B

Rationale: The innermost layer (tunica intima) is endothelium (B), a simple squamous epithelium specialized for blood contact. Ciliated (A) and columnar (C) are not in vessels; D is a general term overlapping with B.

Correct Answer: A

Rationale: A thrombus (A) is a blood clot in a vessel. Thrombosis (C) is the process, fibrinolysis (B) is clot breakdown, and 'clot' (D) is vague but synonymous with thrombus.

Correct Answer: A

Rationale: Afterload (A) is the pressure (e.g., aortic pressure) ventricles overcome to eject blood. B is preload, C is contractility, D is atrial unrelated.

Correct Answer: A

Rationale: The Purkinje system (A) directly activates ventricular muscle. Bundle of His (B) and branches (C) precede, AV node (D) delays.