Endocrine system smartwork

Question 1

What are 4 endocrine glands?

Answer 1

pituitary
hypothalamus
thymus
testes

Question 2

The pituitary gland controls the hypothalamus by the production of antidiuretic hormones.(T/F)

Answer 2

false

Question 3

Zoologists extracted the chemical that the Japanese beetle uses to attract a mate, and used it in a trap to reduce the beetle population. Scientists were using a

Answer 3

pheromone.

Question 4

Which of the following characteristics or actions are associated with a steroid hormone?

Answer 4

production of new proteins

Question 5

Uncommonly large feet, hands, chin, nose, and eyebrow ridges on a normal-sized body are characteristic of the condition ______, that is caused by ______.

Answer 5

acromegaly; overproduction of growth hormone in adults

Question 6

How are hormone levels regulated? 4

Answer 6

An endocrine gland can respond to the blood level of the hormone it produces.
A hormone can trigger a second gland to secrete a hormone that dampens production of the first hormone.
A second contrary hormone can counteract the effect of the first hormone.
A product can trigger hormone production; the hormone can then reduce the amount of product which in turn reduces the level of hormone

Question 7

Which is an example of negative feedback?

Answer 7

When the blood becomes dilute, ADH is no longer released from the hypothalamus.

Question 8

Which of the following are functions of the hypothalamus? 4

Answer 8

influences the blood pressure
regulates appetite
controls body temperature
balances the water balance in the body

Question 9

The birth of a baby and milk production are synchronized. Babies can be born several months prematurely, and milk production is needed immediately after birth. How has the human body evolved to coordinate this delicate timing of events?

Answer 9

Oxytocin causes both the uterus to contract in labor and the release of milk from mammary glands, which is reinforced by prolactin from the pituitary.

Question 10

Type I diabetes is much more common than type II.

Answer 10

false

Question 11

What gland, located in the brain, produces melatonin?

Answer 11

pineal gland

Question 12

The part of the brain that controls the anterior pituitary gland secretions is the

Answer 12

hypothalamus.

Question 13

The over secretion of T3 by the thyroid gland can result in _______________.

Answer 13

hyperthyroidism

Question 14

Hypoparathyroidism leads to a dramatic drop in blood calcium, which causes

Answer 14

tetany (convulsions).

Question 15

Which endocrine gland is directly responsible for the secretion of the glucocorticoid cortisol?

Answer 15

adrenal cortex

Question 16

Which of the following mineralcorticoid is responsible for regulating blood volume and pressure?

Answer 16

aldosterone

Question 17

An adolescent female who is hyperactive, nervous, irritable and has eyes that are protruding from their sockets is most likely suffering from ________ which is caused by ___________.

Answer 17

Grave’s disease, oversecretion of T3 or T4 due to antibodies that mimic the effect of TSH.

Question 18

Steroid hormones act more slowly and maintain their effects longer than peptide hormones. (T/F)

Answer 18

true

Question 19

Both T3 and T4 are produced in the thyroid and are responsible for increasing the metabolic rate of specific organs in the body. (T/F)

Answer 19

flase

Question 20

Obesity can cause diabetes because adipose tissue produces a substance that impairs insulin receptor function. (T/F)?

Answer 20

true

Question 21

Type I diabetes occurs as a result of destruction of the insulin-producing cells. (T/F)?

Answer 21

true

Question 22

One method of treating type II diabetes is exercise and a low-fat, low-sugar diet. (T/F)?

Answer 22

true

Question 23

Symptoms of diabetes include excessive thirst, frequent urination, and glucose in the urine. (T/F)?

Answer 23

true

Question 24

Hormones are secreted into the bloodstream(T/F)?

Answer 24

true

Question 25

Hormones may be classified as peptides or steroids.

Answer 25

true

Question 26

Hormones usually affect a target organ.

Answer 26

true

Question 27

Cells that react to a hormone have specific receptors for that hormone.

Answer 27

true