Question 1

Secretion of sex steroid hormones in males and females is controlled by ____.

Accepted Answer

The secretion of sex steroid hormones in both males and females is controlled by the same pathway and hormones, primarily involving the hypothalamic-pituitary-gonadal axis, where the hypothalamus releases GnRH (gonadotropin-releasing hormone) which stimulates the pituitary to release LH (luteinizing hormone) and FSH (follicle-stimulating hormone), which in turn stimulate the gonads to produce sex steroids like testosterone, estrogen, and progesterone.

Question 2

Match between columns
                        Premises: produces prolactin
produces sex steroid hormones
produces calcitonin
produces glucagon
produces norepinephrine
produces antidiuretic hormone
produces melatonin

Accepted Answer

The Answer of C and B and F and A is...

Question 3

Increased ____ levels cause decreases in _____, ____, ____ levels.

Accepted Answer

The answer of Increased ____ levels cause decreases in _____,...

Question 4

Match between columns
                        Premises: target of ACTH
produces epinephrine and norepinephrine
produces a hormone that regulates metabolism and has roles in growth and development
produces melatonin
produces and secretes thyroid-stimulating hormone
produces ADH
hormone released by this gland raises blood calcium levels
produces insulin

Accepted Answer

The Answer of adrenal cortex and parathyroid and pineal and is...

Question 5

Match between columns
                        Premises: pineal gland
posterior lobe of pituitary
adrenal cortex
pancreatic islets
insulin
anterior lobe of pituitary
target cell
gonad
hypothalamus
parathyroid gland
adrenal medulla
molecule that forms inside a cell in response to the binding of a signaling molecule to a receptor in the plasma membrane.
steroid hormone
thyroid gland
thymus gland

Accepted Answer

The Answer of a second messenger and secretes (releases into is...

Question 6

A decrease in blood glucose triggers action by the _____ stimulated by _____.

Accepted Answer

A decrease in blood glucose triggers the liver to act, stimulated by an increase in glucagon. Glucagon is a hormone produced by the pancreas that signals the liver to release stored glucose into the bloodstream, thereby increasing blood glucose levels.

Question 7

High levels of cortisol can mimic the effects of _____ on the _____.

Accepted Answer

High levels of cortisol can mimic the effects of glucagon on the liver, promoting gluconeogenesis and increasing blood glucose levels.

Question 8

Increased GnRH levels cause an increase in ____ production.

Accepted Answer

GnRH (gonadotropin-releasing hormone) stimulates the production and release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the pituitary gland. LH binds to receptors on Leydig cells in the testes and stimulates the production of testosterone. Therefore, increased GnRH levels lead to an increase in testosterone production.

Question 9

Cushing's syndrome can cause _____.

Accepted Answer

The answer of Cushing's syndrome can cause _____.
...

Question 10

In human ______, secretion of ______ triggers growth facial hair and an enlarged larynx (voice box) that lowers the voice.

Accepted Answer

Males secrete testosterone which triggers the growth of facial hair and an enlarged larynx leading to a lower voice.

Question 11

The differences in male and female secondary sexual traits are due to the _____.

Accepted Answer

The relative proportion of sex steroid hormones, such as testosterone and estrogen, in males and females is responsible for the differences in secondary sexual traits, such as body hair growth, muscle development, and breast development. Male bodies produce higher levels of testosterone, while female bodies produce higher levels of estrogen, leading to the observed differences. Choices B, C, D, and E do not fully explain the observed differences in secondary sexual traits.

Question 12

A study of ____ indicated a connection between lower melatonin levels and a greater risk of breast cancer.

Accepted Answer

The connection between lower melatonin levels and a greater risk of breast cancer was found in night-shift nurses, indicating a possible causal relationship between disrupted circadian rhythm and breast cancer.

Question 13

In human _____, secretion of _____ triggers enlarged breasts and fat deposition at the hips.

Accepted Answer

Estrogen is the hormone responsible for breast enlargement and fat deposition at the hips in females. Progesterone also plays a role in breast development but to a lesser extent. Testosterone and calcitonin do not have these effects, and thyroid hormone does not have a specific gender effect.

Quiz 26: Endocrine Control

Secretion of sex steroid hormones in males and females is controlled by ____.

Match the major glands in the following image with the hormones they produce.

Increased __ levels cause decreases in _, , __ levels.

Match the endocrine gland to the proper description.

Match the description to the endocrine structure to which it best corresponds.

A decrease in blood glucose triggers action by the _ stimulated by _.

High levels of cortisol can mimic the effects of _ on the _.

Increased GnRH levels cause an increase in ____ production.

Cushing's syndrome can cause _____.

In human , secretion of triggers growth facial hair and an enlarged larynx (voice box) that lowers the voice.

The differences in male and female secondary sexual traits are due to the _____.

A study of ____ indicated a connection between lower melatonin levels and a greater risk of breast cancer.

In human _, secretion of _ triggers enlarged breasts and fat deposition at the hips.