Which of the following is not an example of a digestive contractile activity?
a. peristalsis
b. segmentation
c. threshold contractions
d. haustral contractions
e. none of these
C
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The juxtaglomerular cells release the enzyme ______________ when the macula densa cells detect low blood volume or solute concentration
Fill in the blank with correct word.
One of the adaptive advantages of human body hair is believed to be its ability to help us detect potentially harmful insects crawling or landing on our skin. Which receptor type is most associated with this type of perception?
What will be an ideal response
The kidneys, ureters, adrenal glands, aorta, and inferior vena cava are all ________.
A. located within the thoracic cavity B. within the pelvic cavity C. located within the peritoneal cavity D. inside the visceral peritoneum E. retroperitoneal
Leptin is produced by
A. the thymus gland. B. adipose tissue. C. the liver. D. the pineal gland.