Endocrine System Flashcards
Anterior pituitary/posterior pituitary stores the hormone secreted by the hypothalamus.
The posterior pituitary stores the hormone secreted by the hypothalamus.
Which structures has only an endocrine function?
The thyroid gland, adrenal cortex, and adrenal medulla
Thymosin/Thyroxine causes an increase in the basal metabolic rate.
Thyroxine causes an increase in the basic metabolic rate.
With respect to regulation of blood Ca2+, which two hormones are antagonists?
Calcitonin decreases calcium in blood, and parathyroid hormone increases calcium in blood.
Thyroid hormone is the antagonist of calcitonin. True or false?
False. The parathyroid hormone is the antagonist of calcitonin.
Prolactin/estrogen/oxytocin/aldosterone does not have an effect on the breasts.
Aldosterone does not have an effect on the breasts.
Calcitonin can lower blood levels of Ca2+ by promoting/inhibiting bone resorption by osteoclasts.
Inhibiting.
Alpha/beta cells secrete glucagon which acts on liver/pancreas cells (target cells) and raises/lowers blood glucose level. The secretion of glucagon is inhibited by high/low blood glucose levels.
Alpha cells secrete glucagon, which acts on liver cells and raises blood glucose level. The secretion of glucagon is inhibited by high blood glucose levels.
Alpha/beta cells secrete insulin, which raises/lowers blood glucose level. It increases/decreases glucose uptake by cells. The secretion of insulin is inhibited by high/low blood levels.
Beta cells secrete insulin, which lowers blood glucose level. It increases glucose uptake by cells. The secretion of insulin is inhibited by low blood glucose levels.
All of the following hormones program T lymphocytes except thymosin/thymopoeitin/thymic factor/thyroxine.
Thyroxine.
What causes depression of inflammation and depresses immune responses?
Glucocorticoids.
Somatic/sympathetic/parasympathetic nervous system effects the secretion of hormones from the adrenal medulla.
Sympathetic.
Epinephrine and norepinephrine intensify the flight or fight response/rest and digest response.
Flight or fight response.
List four effects of epinephrine and norepinephrine.
1) increased heart rate
2) increased blood pressure
3) dilated airways to the lungs
4) increased blood flow to the heart.
Hormone affects only specific target cells with receptors bind and recognize that specific hormone.
True or false?
True.
Hormones may affect the cells that do not have receptors for them. True or false?
False.
Cells have receptors for only one type of hormone. True or false?
False.
When one hormone opposes the actions of another hormone, the two hormones are said to have synergistic/antagonistic effect.
Antagonistic.
When the effect of two hormones acting together is greater than the effect of each hormone acting alone the two hormones are said to have synergistic/antagonistic effects.
Synergistic.
Diagram question: describe and locate the pineal gland.
The pineal gland sort of resembles a small heart and is located in the center of the brain above the pituitary gland.
Diagram question: describe in locate the pituitary gland.
The pituitary gland sort of resembles a pair of testes or cherries and is located below the pineal gland just behind the eyes in the brain.
Diagram question: describe and locate the thymus.
The finest is a structure located directly above the heart in the sternum resembling a mom and baby turnip hugging.
Diagram question: describe and locate the pancreas.
The pancreas is located just below the heart next to the adrenal cortex, and it looks like a seashell chocolate.
Diagram question: describe and locate the ovary.
The ovaries are small almond shaped organs at the end of the fallopian tubes just outside of the uterus. Directly below the pancreas and found in females only.