MBLEx Exam Questions & Answers

Lactic acid buildup occurs when the demand for energy exceeds the tissues ability to process the metabolic waste. Sprinting is the only activity mentioned that can create this scenario.

Muscle tone relates to a continuous muscle contraction that resists stretching or elongation during a resting state. In other words, muscle tone describes a muscle that is unable to relax.

Pulmonary circulation transfers blood from the heart to the lungs and then back to the heart for systemic circulation which distributes blood, nutrients and gases throughout the body.

Carbohydrate digestions occurs mainly in the small intestine where the pancreatic digestive enzyme amylase converts starches into maltose which is then converted to glucose by the enzyme maltase. Sucrase converts sucrose to glucose and lactase converts lactose to glucose in the small intestine as well.

The brachial artery continues from the axillary artery and runs between the triceps and biceps brachii. The pulse of the brachial artery can be palpated between these muscles on the anterior side of the arm.