Endocrine System
Which system produces chemical messengers known as hormones?
Endocrine system
Hormones of the hypothalamus stimulate the anterior pituitary gland to secrete its hormones. How would you classify this type of endocrine gland stimulation?
Hormonal
Calcitonin is made by the _______________ cells of the thyroid gland.
Parafollicular
Which endocrine gland is most closely associated with the hypothalamus?
Pituitary gland
What is the target organ of thyrotropic hormone ( TH), or thyroid-stimulating hormone (TSH)?
Thyroid
What gland releases catecholamines?
adrenal glands
Which of these anterior pituitary hormones regulates the endocrine activity of the cortex region of the adrenal gland?
adrenocorticotropic hormone ( ACTH)
Male sex hormones produced by the adrenal cortex are called________.
androgens
Releasing and inhibiting hormones produced by the hypothalamus influence the activities of the _____
anterior pituitary gland
Alcohol inhibits the secretion Of _____________
antidiuretic hormone (ADH)
Which hormone causes the kidneys to reabsorb more water from forming urine and as a result, increases blood volume?
antidiuretic hormone (ADH)
The two hormones released by the thyroid gland are ______
calcitonin and parathyroid hormone (PTH)/
Which of these hormones is released by the adrenal medulla?
epinephrine
The hormone that stimulates follicle development by female ovaries and sperm development by male testes is __________
follicle -stimulating hormone (FSH)
Without iodine in the diet, which thyroid gland disorder may result?
goiter
Parathyroid hormone (PTH) is secreted by the parathyroid glands in response to low blood concentration of calcium ions. This mechanism operates by a _________
humoral stimulates
Which of the following hormones decreases blood glucose levels?
insulin
What is the primary function of thymosin?
is essential for the normal development of T lymphocytes
Which hormone appears to play an important role in establishing the body's sleep-wake cycle?
melatonin
They hypothalamus makes to hormones, ____________ and __________ , that are stored by the posterior pituitary.
oxytocin,; antidiuretic hormone ( ADH)
Where is calcitonin made?
parafollicular cells of the thyroid gland
Where are the parathyroid glands located?
posterior surface of the thyroid glands
Which two hormones play a role in promoting the milk reflex and in stimulating and maintaining breast milk production in a nursing mothers breast?
prolactin (PRL) and oxytocin
How would you classify a hormone that is made from cholesterol, such as a sex hormone?
steroid hormone
The hormone produced by male testes which is necessary for sperm production is __________
testosterone
In the second-messenger system, what serves as the first messenger?
the hormone