Carl is suffering from hypothyroidism. How could his physician determine if his symptoms result from problems at the level of the hypothalamus and pituitary or at the level of the gland itself?
What will be an ideal response?
The physician could order blood tests to determine the levels of TSH, T3, and T4 in the blood. If the condition is
due to disease of the thyroid gland, you would expect to see elevated levels of TSH because of a lack of feedback
inhibition by thyroid hormones. If, on the other hand, the problem is due to problems at the level of the
hypothalamus or pituitary, you would expect to see decreased levels of TSH.
You might also like to view...
High frequency sounds are detected when the basilar membrane is displaced near the ________
Fill in the blanks with correct word
What inhibits viruses from entering and attacking healthy cells?
A) membrane-attack complexes (MAC) B) keratin C) interferons D) pyrogens E) complement
What are entrapped osteoblasts called that no longer perform their duty?
a. exocytes b. chondrocytes c. endocytes d. osteocytes e. osteoclasts
The pyloric gland area of the stomach antrum secretes
a. histamine b. gastrin c. intrinsic factor d. both a and b e. both a and c