In terms of structure and function, compare the type of epithelium lining the trachea, air sacs of the lungs, and the epidermis of the skin
What will be an ideal response
The trachea is lined with ciliated pseudostratified columnar epithelium with goblet cells. The mucus produced by the goblet cells traps dust, bacteria, and other debris and the cilia move it upwards away from the lungs. The air sacs of the lungs are lined with simple squamous epithelium that serves as a thin, efficient membrane for gas exchange between air and blood. The epidermis of the skin consists of stratified squamous epithelium which functions as physical protection against abrasion, bacteria, and drying out.
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Where should the first incision be made when dissecting a pig?
A) on the lateral side of the ventral surface near the umbilical cord B) on the midline of the ventral surface at the base of the neck C) on the lateral side of the dorsal surface near the neck D) on the midline of the dorsal surface just anterior to the tail
The muscle that has brevis in its name is ________
A) wide B) white C) slender D) short
Monosaccharides
A. cannot be absorbed. B. need vitamin C to be absorbed. C. are absorbed into lacteals. D. are emulsified before absorption. E. use a symport process in their absorption.
The __________ nerve innervates the posterior arm, forearm muscles, and skin.
Fill in the blank(s) with the appropriate word(s).