How many layers make up the esophagus?
A) two
B) three
C) four
D) five
C
Explanation:
A) There are more than two layers found in the esophagus.
B) There are more than three layers found in the esophagus.
D) There are fewer than five layers found in the esophagus.
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From your study of images of the lower limb muscles, what is a retinaculum?
A. A layer of dense connective tissue surrounding a muscle B. A group of muscles with a common insertion C. A band of connective tissue that holds a group of tendons in place D. A group of tendons running in the same direction E. A group of muscles with a common action
When observing a slide under a microscope, begin focusing with the ________-power objective lens in place.
Fill in the blank(s) with the appropriate word(s).
Glucose and amino acids are reabsorbed from the glomerular filtrate by the ________.
A. glomerular capillaries B. renal corpuscle C. distal convoluted tubule D. proximal convoluted tubule E. collecting duct
A/an ________is an environmental agent that causes changes in DNA structure.
Fill in the blank(s) with the appropriate word(s).