A&P II Ch. 17 Endocrine System
The end result of the R A A S is to
Increase blood pressure
Chemical signaling that affects neighboring cells is called
Paracine
Which of the following responses s not party of the fight-or-flight response?
Reduced mental activity
Endocrine glands
Secrete chemical messages that travel in the bloodstream
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
When blood calcium are low, PTH stimulates
the activity of osteoclasts
How many hormones are produced by the posterior pituitary?
0
Cushing's disease is a disorder caused by
Abnormally high levels of cortisol
What secretory cell type is found in the adrenal medulla?
Chromaffin cells
Which of the following is an anterior pituitary hormone?
TSH
Iodine ions cross from the bloodstream into follicle cells via _____
Active transport
A small molecule binds to a G protein, preventing its activation. What direct effect will this have on signaling that involved cAMP?
Adenylyl cyclase will not be activated
Which of the following hormones contributes to the regulation of the body's fluid and electrolyte balance?
Antidiuretic hormone
The walls of the atria produce which hormone?
Atrial natriuretic peptide
Athletes may take synthetic EPO to boost their
Blood oxygen levels
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
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 statements about insulin is true?
Insulin facilitates the movement of intracellular glucose transporters to the cell membrane
Which of the following can result from hyperparathyroidism?
Fractures
The adrenal glands are attached superiorly to which organ?
Kidneys
The hypothalamus is functionally and anatomically connected to the posterior pituitary lobe by a bridge of
Nerve axons
The development of a goiter indicates that
there is an excessive accumulation of colloid in the thyroid follicles
the gonads produce what class of hormones?
Steroid hormones
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, and it manufactures three hormones.
The anterior pituitary gland develops from which embryonic germ layer?
Oral ectoderm
The function of the placental hormone human placental lactose (hPL) is to
Prepare the breasts for lactaion
The secretion of thyroid hormones is controlled by
TSH from the anterior pituitary
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
What cells secrete melatonin?
pinealocytes
