If the connection between the hypothalamus and pituitary were severed, damaging the neurons, the secretion of which type of chem
ical messenger (signal) would most directly be affected?
a) chemokines
b) neurotransmitters
c) releasing hormone
d) tropic hormone
a) chemokines
b) neurotransmitters
c) releasing hormone
d) tropic hormone
1 answer:
Answer:
Tropic hormones
Explanation:
The damage probably occurred at the infindibular stalk or the pituitary stalk that links the hypothalamus to the pituitary glands. If this were to happen, then there would be no communication between the two endocrine glands and the chemical signals affected will be tropic hormones. This is because the releasing hormones from the hypothalamus will not be able to reach the pituitary glands to stimulate the release of the secondary hormones. Tropic hormones are hormones which have other glands as their targets for example Adenocorticotropin Hormone (ACTH) that regulates how the steroid hormone cortisol is released by the adrenal glands. The picture below shows the pituitary stalk linking the hypothalamus to the pituitary glands.
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Answer:
"Location 4" indicates a low-pressure area
Explanation:
A low-pressure area is defined as the region in which the pressure in the atmosphere is comparatively lesser than nearby surrounding areas. This region is a depression that is comprised of more winds, warmer air, and lifting of air mass takes place.
In a low-pressure zone, the warm air becomes less dense, due to higher temperature, as a result of which it rises up into the atmosphere. As it rises up into the atmosphere, it eventually cools and condensation starts taking place. After a definite period of time, rainfall occurs.
Thus, in the given image, location 4 shows the low pressure area.
