Endocrine System
How many hormones are produced by the posterior pituitary?
0
Which of the following statements about insulin is true?
Insulin facilitates the movement of intracellular glucose transporters to the cell membrane.
The walls of the atria produce which hormone?
atrial natriuretic peptide
The end result of the RAAS is to?
increase blood pressure
The adrenal glands are attached superiorly to which organ?
kidneys
When blood calcium levels are low, PTH stimulates?
the activity of osteoclasts
The development of a goiter indicates that ?
there is an excessive accumulation of colloid in the thyroid follicles
A newly developed pesticide has been observed to bind to an intracellular hormone receptor. If ingested, residue from this pesticide could disrupt levels of?
thyroid hormone
A small molecule binds to a G protein, preventing its activation. What direct effect will this have on signaling that involves cAMP?
Adenylyl cyclase will not be activated.
Which of the following statements about the thyroid gland is true?
It is located anterior to the trachea and inferior to the larynx. The parathyroid glands are embedded within it. It manufactures three hormones. ***all of the above ***
Which of the following is an anterior pituitary hormone?
TSH
The secretion of thyroid hormones is controlled by ?
TSH from the anterior pituitary
Cushing's disease is a disorder caused by?
abnormally high levels of cortisol
Iodide ions cross from the bloodstream into follicle cells via?
active transport
Which of the following hormones contributes to the regulation of the body's fluid and electrolyte balance?
antidiuretic hormone
Athletes may take synthetic EPO to boost their ?
blood oxygen levels
What secretory cell type is found in the adrenal medulla?
chromaffin cells
In the elderly, decreased thyroid function causes?
decreased basal metabolic rate
Hormones produced by the thymus play a role in the?
development of T cells
The production of melatonin is inhibited by?
exposure to bright light
Which of the following can result from hyperparathyroidism?
fractures
If an autoimmune disorder targets the alpha cells, production of which hormone would be directly affected?
glucagon
The production of FSH by the anterior pituitary is reduced by which hormone?
inhibin
The hypothalamus is functionally and anatomically connected to the posterior pituitary lobe by a bridge of?
nerve axons
A student is in a car accident, and although not hurt, immediately experiences pupil dilation, increased heart rate, and rapid breathing. What type of endocrine system stimulus did the student receive?
neural
The anterior pituitary gland develops from which embryonic germ layer?
oral ectoderm
Chemical signaling that affects neighboring cells is called?
paracrine
What cells secrete melatonin?
pinealocytes
The function of the placental hormone human placental lactogen (hPL) is to?
prepare the breasts for lactation
Which of the following responses is not part of the fight-or- flight response?
reduced mental activity
Endocrine glands?
secrete chemical messengers that travel in the bloodstream
The gonads produce what class of hormones?
steroid hormones
