hypothalamus and pituitary gland

Question 1

what is the hypothalamus?

Answer 1

is a part of the brain that has a vital role in controlling many bodily functions including the release of hormones from the pituitary gland.

Question 2

what is the pituitary gland?

Answer 2

a small, bean-shaped gland situated at the base of your brain, somewhat behind your nose and between your ears

Question 3

what is the hypothalamus the link of?

Answer 3

is the link between the nervous and endocrine system

Question 4

what is the endocrine system?

Answer 4

is a network of glands and organs located throughout the body.

Question 5

what is the endocrine system responsible for?

Answer 5

• Responsible for regulating a range of bodily functions through the release of hormones

Question 6

what are hormones secreted by and what do they travel through?

Answer 6

• Hormones are secreted by the glands of the endocrine system, traveling through the bloodstream to various organs and tissues in the body.

Question 7

what is the job of the hormones?

Answer 7

• The hormones then tell these organs and tissues what to do or how to function.

Question 8

what does the pituitary gland control?

Answer 8

controls several other hormone glands in your body, including the thyroid and adrenals, the ovaries and testicles.

Question 9

what are the two lobes of the pituitary gland?

Answer 9

Neurohypophysis (posterior lobe)

Adenohypophysis (anterior lobe)

Question 10

what is the role of the posterior lobe?

Answer 10

receives, stores and releases hormones from the hypothalamus

Question 11

what is the role of the anterior lobe?

Answer 11

synthesizes and secretes a number of hormones

Question 12

how many major hormones does the pituitary gland secrete?

Answer 12

9

Question 13

what connects the hypothalamus to the posterior lobe?

Answer 13

a neural connection, hypothalamic-hypophyseal tract

Question 14

what are transported to the posterior lobe from the hypothalamus?

Answer 14

• Nuclei of hypothalamus synthesize oxytocin and antidiuretic hormone (ADH)

Question 15

what connects the anterior lobe to the hypothalamus?

Answer 15

a vascular connection - the hypophyseal portal system

it has no direct neural contact

Question 16

what is the role of the anterior lobe?

Answer 16

Releases hormones that stimulate the synthesis and release of hormones
Inhibit hormones to shut off the synthesis and release of hormones
the hypothalamus sends a chemical stimulus to tell the anterior lobe

Question 17

what is the chemical stimulus from the hypothalamus regulated by?

Answer 17

negative feedback

Question 18

what are the hormones that anterior pituitary lobe secrete?

Answer 18

prolactin 
adrenocorticotropic
melanocytes 
thyroid stimulating
follicle stimulating 
luteinizing hormone
human growth hormone

Question 19

what is the role of prolactin?

Answer 19

promotes milk secretion by mammary glands

Question 20

what is the role of adrenocorticotropic hormone?

Answer 20

stimulates glucocorticoid secretion by adrenal cortex

Question 21

what is the role of thyroid stimulating hormone?

Answer 21

stimulates synthesis and secretion of thyroid hormones

Question 22

what is the role of the follicle-stimulating hormone?

Answer 22

Ovaries initiates development of oocytes, testes stimulate testosterone production

Question 23

what is the role of luteinizing hormone?

Answer 23

ovaries stimulate ovulation and testes stimulate testosterone production

Question 24

what is the role of the hGH hormone?

Answer 24

stimulates secretion of insulin-like growth factors that promote growth and protein synthesis