Endocrine system smartwork Flashcards
What are 4 endocrine glands?
pituitary
hypothalamus
thymus
testes
The pituitary gland controls the hypothalamus by the production of antidiuretic hormones.(T/F)
false
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
pheromone.
Which of the following characteristics or actions are associated with a steroid hormone?
production of new proteins
Uncommonly large feet, hands, chin, nose, and eyebrow ridges on a normal-sized body are characteristic of the condition ______, that is caused by ______.
acromegaly; overproduction of growth hormone in adults
How are hormone levels regulated? 4
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
Which is an example of negative feedback?
When the blood becomes dilute, ADH is no longer released from the hypothalamus.
Which of the following are functions of the hypothalamus? 4
influences the blood pressure
regulates appetite
controls body temperature
balances the water balance in the body
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?
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.
Type I diabetes is much more common than type II.
false
What gland, located in the brain, produces melatonin?
pineal gland
The part of the brain that controls the anterior pituitary gland secretions is the
hypothalamus.
The over secretion of T3 by the thyroid gland can result in _______________.
hyperthyroidism
Hypoparathyroidism leads to a dramatic drop in blood calcium, which causes
tetany (convulsions).
Which endocrine gland is directly responsible for the secretion of the glucocorticoid cortisol?
adrenal cortex
Which of the following mineralcorticoid is responsible for regulating blood volume and pressure?
aldosterone
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 ___________.
Grave’s disease, oversecretion of T3 or T4 due to antibodies that mimic the effect of TSH.
Steroid hormones act more slowly and maintain their effects longer than peptide hormones. (T/F)
true
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)
flase
Obesity can cause diabetes because adipose tissue produces a substance that impairs insulin receptor function. (T/F)?
true
Type I diabetes occurs as a result of destruction of the insulin-producing cells. (T/F)?
true
One method of treating type II diabetes is exercise and a low-fat, low-sugar diet. (T/F)?
true
Symptoms of diabetes include excessive thirst, frequent urination, and glucose in the urine. (T/F)?
true
Hormones are secreted into the bloodstream(T/F)?
true
Hormones may be classified as peptides or steroids.
true
Hormones usually affect a target organ.
true
Cells that react to a hormone have specific receptors for that hormone.
true
