Question

which hormone would you not expect to come from the part highlighted in blue?

a. ne
b. tsh
c. gh
d. acth
e. fsh

what is this anatomical part?

Explanation:

Identify the highlighted brain structure

The first image shows a sagittal section of the human brain focusing on the diencephalon and brainstem. The structure highlighted in blue is the pituitary gland (hypophysis), specifically hanging from the infundibulum below the hypothalamus.

Analyze pituitary hormones and identify the exception

Using the Pituitary Gland Anatomy and Pituitary Hormones knowledge points, we evaluate the options:

• TSH (Thyroid-Stimulating Hormone), GH (Growth Hormone), ACTH (Adrenocorticotropic Hormone), and FSH (Follicle-Stimulating Hormone) are all synthesized and secreted by the anterior pituitary gland (adenohypophysis).
• NE (Norepinephrine) is a neurotransmitter and hormone primarily produced by the adrenal medulla and postganglionic sympathetic neurons, not the pituitary gland.

Thus, NE is the hormone not expected to come from the highlighted part.

Identify the highlighted eye structure

The second image shows an external view of the human eye. The black arrow points directly to the colored, circular muscular diaphragm of the eye. Using the Anatomy of the Eye knowledge point, this structure is identified as the iris, which controls the diameter and size of the pupil.

Answer:

Question 1

• a. NE (Correct answer)
• b. TSH
• c. GH
• d. ACTH
• e. FSH

Question 2

The anatomical part is the iris.