Which glands secrete their product by way of a duct directly onto an epithelial surface?
a) exocrine
b) endocrine
c) paracrine
Ans: a) exocrine
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Moving from the lumen outward, which of the following describes the correct order of the layers comprising the intestinal wall?
A) Mucosa, submucosa, circular smooth muscle, longitudinal smooth muscle B) Circular smooth muscle, longitudinal smooth muscle, mucosa, submucosa C) Circular smooth muscle, mucosa, submucosa, longitudinal smooth muscle D) Submucosa, mucosa, circular smooth muscle, longitudinal smooth muscle
An abnormal swelling that continues to grow could be an indication of the presence of _________
Fill in the blank(s) with correct word
This type of cartilage attaches ribs to the sternum
A) fibrocartilage B) hyaline C) elastic
What is external respiration?
A. the binding of oxygen to hemoglobin B. exchange of oxygen and carbon dioxide at the tissue level C. exchange of oxygen between the atmosphere and lungs D. mitochondrial use of oxygen to produce energy