Which of the following does NOT aid in giving the internal surface of the small intestine a larger surface area?
A. Microvilli
B. Rugae
C. Villi
D. Circular folds
Answer: B
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Protein digestion begins in the stomach under the influence of pepsin; it continues in the duodenal lumen under the influence of pancreatic proteolytic enzymes; and it is completed intracellularly in the small intestinal brush border
Indicate whether the statement is true or false
Which muscle's most powerful action is to supinate the forearm?
A. Brachialis B. Biceps brachii C. Triceps brachii D. Brachioradialis
Select the correct statement about bone growth.
A. Osteoblasts deposit the bone matrix in both compact and spongy bone. B. A bone grows in length as the articular cartilage is replaced with bone. C. Osteoclasts deposit the bone matrix in spongy bone. D. Once growth is complete, a bone will remain the same for life.
Which mineral is correctly matched to its function?
A. Chromium - component of thyroid hormone B. Magnesium - protects plasma membrane from oxidative changes C. Zinc - needed for wound healing and prevention of anemia D. Phosphorus - associates with vitamin E to help make gastric juice