Question

question 13
1 pts
all of the following are true statements except:
there are at least 16 different prostaglandins.
the first prostaglandin was identified in semen.
aspirin produces some of its effects by increasing pge synthesis.
pgfs have been used to induce labor and accelerate the delivery of a baby.

question 14
1 pts
the sequence of auditory ossicles in the middle ear starting at the tympanic membrane and ending at the oval window is:
malleus, incus, and stapes.
malleus, stapes, and incus.
stapes, malleus, and incus.
stapes, incus, and malleus.

question 15
1 pts
the type of cells that secrete acth are:
somatotrophs.
lactotrophs.
thyrotrophs.
corticotrophs.

Explanation:

Question 13

• Prostaglandins: There are over 16 types. The first was found in semen. PGFs can induce labor. Aspirin inhibits (not increases) PGE synthesis by blocking cyclo - oxygenase.

• Auditory ossicles: The sequence from tympanic membrane (eardrum) to oval window is malleus (hammer), incus (anvil), stapes (stirrup).

• ACTH (Adrenocorticotropic hormone): Secreted by corticotrophs in the anterior pituitary. Somatotrophs secrete growth hormone, lactotrophs secrete prolactin, thyrotrophs secrete TSH (thyroid - stimulating hormone).

Answer:

aspirin produces some of its effects by increasing PGE synthesis.

Question 14