What is the salivary gland that secretes a watery mixture rich in salivary amylase and buffers?
A) mandibular
B) sublingual
C) lingual
D) submandibular
E) parotid
Answer: D
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Which of the following best describes the acetabulum?
A. It articulates with the humeral head. B. It articulates with the femoral head. C. It is the point of attachment between the ossa coxae and the sacrum. D. It is the anterior point of attachment between the two ossa coxae. E. It articulates with the femoral condyles.
Vitamin A deficiency may take years to become noticeable because
A) most vitamin A leaves the body in urine. B) the liver stores it. C) it is difficult to eat too many carrots. D) the brain stores it.
Before B cells secrete antibodies, they differentiate into ________.
A. stem cells B. macrophages C. plasma cells D. antigen-presenting cells E. T cells
What is NOT part of the cardiac conduction system?
A) atrioventricular (AV) node B) sinoatrial sinoatrial (SA) node C) atrioventricular (AV) valve D) atrioventricular (AV) bundle