Question

trh
pituitary (1/3)
mammary gland (2/3)
testis/ovaries (3/3)
ghrh
fsh
crh
gnrh
lh
prl

Explanation:

To solve this, we analyze the hormones and their target organs:

Pituitary (1/3)

Hormones that act on the pituitary (hypophysiotropic hormones) are releasing hormones from the hypothalamus:

• \( \text{TRH} \) (Thyrotropin - Releasing Hormone): Stimulates pituitary to release TSH.
• \( \text{GHRH} \) (Growth Hormone - Releasing Hormone): Stimulates pituitary to release GH.
• \( \text{CRH} \) (Corticotropin - Releasing Hormone): Stimulates pituitary to release ACTH.
• \( \text{GnRH} \) (Gonadotropin - Releasing Hormone): Stimulates pituitary to release FSH and LH.

Mammary Gland (2/3)

The hormone acting on the mammary gland for lactation is:

• \( \text{PRL} \) (Prolactin): Produced by the pituitary, acts on mammary glands to promote milk production.

Testis/Ovaries (3/3)

Hormones acting on gonads (testis/ovaries) are gonadotropins:

• \( \text{FSH} \) (Follicle - Stimulating Hormone): Acts on gonads to regulate gamete production.
• \( \text{LH} \) (Luteinizing Hormone): Acts on gonads to regulate hormone production (e.g., estrogen, testosterone) and ovulation.

Final Categorization Table

Hormone	Target Organ
GHRH	Pituitary
FSH	Testis/Ovaries
CRH	Pituitary
GnRH	Pituitary
LH	Testis/Ovaries
PRL	Mammary Gland

So the filled table (matching each hormone to its target) is as above.

Answer:

To solve this, we analyze the hormones and their target organs:

Pituitary (1/3)

Hormones that act on the pituitary (hypophysiotropic hormones) are releasing hormones from the hypothalamus:

• \( \text{TRH} \) (Thyrotropin - Releasing Hormone): Stimulates pituitary to release TSH.
• \( \text{GHRH} \) (Growth Hormone - Releasing Hormone): Stimulates pituitary to release GH.
• \( \text{CRH} \) (Corticotropin - Releasing Hormone): Stimulates pituitary to release ACTH.
• \( \text{GnRH} \) (Gonadotropin - Releasing Hormone): Stimulates pituitary to release FSH and LH.

Mammary Gland (2/3)

The hormone acting on the mammary gland for lactation is:

• \( \text{PRL} \) (Prolactin): Produced by the pituitary, acts on mammary glands to promote milk production.

Testis/Ovaries (3/3)

Hormones acting on gonads (testis/ovaries) are gonadotropins:

• \( \text{FSH} \) (Follicle - Stimulating Hormone): Acts on gonads to regulate gamete production.
• \( \text{LH} \) (Luteinizing Hormone): Acts on gonads to regulate hormone production (e.g., estrogen, testosterone) and ovulation.

Final Categorization Table

Hormone	Target Organ
GHRH	Pituitary
FSH	Testis/Ovaries
CRH	Pituitary
GnRH	Pituitary
LH	Testis/Ovaries
PRL	Mammary Gland

So the filled table (matching each hormone to its target) is as above.