The Endocrine System Questions and
Answers 100% Pass
hormone ✔✔a chemical substance that is carried by the circulation from and endocrine gland in
one part of the body to another part of the body where it exerts a specific observable effect
2 types of hormones ✔✔steroid hormones (made from fat), protein hormones(made from amino
acids)
hormone-like substances ✔✔similar to hormones but not "exactly" like them. May mimic them
to a certain extent like tofu(soybean) or certain clovers.. contains estrogen-like compound.
how hormones work ✔✔1. Leaves gland and enters bloodstream 2. Reaches "target tissue" 3.
Binds to "receptor sites" 4. A specific response occurs in the cell
Master gland ✔✔Pituitary gland
Pituitary gland ✔✔Controls other glands in the body by secreting hormones that either turn them
on or off.
, Hypothalamus ✔✔Connects pituitary gland to the ventral portion of the brain. Sends releasing
factors or inhibitory factors to the pituitary gland by direct blood vessels
Positive feedback ✔✔If levels of a particular hormone are low in the blood the hypothalmus
senses this and tells the pituitary to send out releasing factors which turn on the gland that makes
that particular hormone.
Negative feedback ✔✔If hormone levels are found to be too high the hypothalamus tells the
pituitary to send out inhibitory factors which tell the gland that makes the hormone to stop
producing so much.
Adenohypophysis ✔✔anterior lobe of the pituitary gland- produces 7 hormones
Neurohypophysis ✔✔Posterior lobe of the pituitary gland- produces 2 hormones
Growth Hormone (GH) ✔✔Stimulates growth of body cells, especially bone and muscle. Causes
protein synthesis and prevents protein breakdown. Increases milk production in cattle (bST).
Answers 100% Pass
hormone ✔✔a chemical substance that is carried by the circulation from and endocrine gland in
one part of the body to another part of the body where it exerts a specific observable effect
2 types of hormones ✔✔steroid hormones (made from fat), protein hormones(made from amino
acids)
hormone-like substances ✔✔similar to hormones but not "exactly" like them. May mimic them
to a certain extent like tofu(soybean) or certain clovers.. contains estrogen-like compound.
how hormones work ✔✔1. Leaves gland and enters bloodstream 2. Reaches "target tissue" 3.
Binds to "receptor sites" 4. A specific response occurs in the cell
Master gland ✔✔Pituitary gland
Pituitary gland ✔✔Controls other glands in the body by secreting hormones that either turn them
on or off.
, Hypothalamus ✔✔Connects pituitary gland to the ventral portion of the brain. Sends releasing
factors or inhibitory factors to the pituitary gland by direct blood vessels
Positive feedback ✔✔If levels of a particular hormone are low in the blood the hypothalmus
senses this and tells the pituitary to send out releasing factors which turn on the gland that makes
that particular hormone.
Negative feedback ✔✔If hormone levels are found to be too high the hypothalamus tells the
pituitary to send out inhibitory factors which tell the gland that makes the hormone to stop
producing so much.
Adenohypophysis ✔✔anterior lobe of the pituitary gland- produces 7 hormones
Neurohypophysis ✔✔Posterior lobe of the pituitary gland- produces 2 hormones
Growth Hormone (GH) ✔✔Stimulates growth of body cells, especially bone and muscle. Causes
protein synthesis and prevents protein breakdown. Increases milk production in cattle (bST).
