Chapter 17 Review Questions
How many hormones are produced by the posterior pituitary?
0, because posterior pituitary is a storage place.
Iodide 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 involves cAMP?
Adenylyl cyclase will not be activated
Which of the following is an anterior pituitary hormone?
Anterior pituitary hormones: Prolactin (PRL), Growth hormone (GH), adrenocorticotropic hormone (ACTH), luteinizing hormone (LH), follicle-stimulating hormone (FSH), Thyroid- stimulating hormone (TSH)
What secretory cell type is found in the adrenal medulla?
Chromaffin cells
Hormones produced by the thymus play a role in the
Development of T cells
Which of the following can result from hyperparathyroidism?
Fractures
The end results of the RAAS is to
Increase blood pressure
Which of the following statements about insulin is true? (the role of insulin and its mechanism)
Insulin facilitates the movement of intracellular glucose transporters to the cell membrane
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 adrenal glands are attached superiorly to which organ?
Kidneys
The hypothalamus is functionally and anatomically connected to the posterior 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
Which of the following responses not part of the fight-or-flight response?
Reduced mental activity
endocrine glands
They secrete chemicals (hormones) into cellular fluid. Primarily transported through bloodstream, to target cell.
The secretion of thyroid hormones is controlled by
Thyroid Stimulating Hormone (TSH) from the anterior pituitary
Cushing's disease is a disorder caused by
abnormally high levels of cortisol
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
In the elderly, decreased thyroid function causes
decreased basal metabolic rate
The production of melatonin is inhibited by
exposure to bright light
If an autoimmune disorder targets the alpha cells, production of which hormone would be directly affected?
glucagon
The production of FHS by the anterior pituitary is reduced by which hormone?
inhibin
Chemical signaling that affects neighboring cells is called
paracrine
What cells secretes melatonin?
pinealocytes
The function of the placental hormone human placental lactogen (hPL) is to
prepare the breast for lactation
The gonads produce what class of hormones?
steroid hormones
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 or lipid soluble hormones
