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WorksheetsDBV20013 Unit 3: Endocrine System
Total questions: 20
Worksheet time: 10mins
The coordinating centers that regulate the activities of the nervous and endocrine systems are in the
pituitary gland.
hypothalamus.
medulla oblongata.
cerebrum.
The chemical messengers in the endocrine system are called _____(1)_____; those in the nervous system are called _____(2)_____.
(1) neurotransmitters; (2) hormones
(1) steroids; (2) eicosanoids
(1) hormones; (2) neurotransmitters
(1) neurotransmitters; eicosanoids
The two hormones synthesized by the hypothalamus that are released into the circulation at the posterior pituitary gland are
testosterone and estrogen.
TSH and ACTH.
ADH and oxytocin.
FSH and prolactin.
The gland that is activated when blood calcium ion levels are too high is the
hypothalamus.
thyroid.
pituitary.
parathyroid.
If blood calcium ion levels become too low, the hormone that will appear in higher concentrations in the blood is
calcitonin.
thyroxin.
antidiuretic hormone.
parathyroid hormone.
The hormone that is the antagonist of insulin is
calcitonin.
glucagon.
adrenalin.
aldosterone.
The important hormones for normal growth include
growth hormone, LH, ADH, and parathormone.
insulin, prolactin, ADH, and MSH.
thyroid hormones, TSH, ACTH, insulin, and LH.
growth hormone, thyroid hormones, insulin, parathyroid, and reproductive hormones.
Undersecretion of growth hormone can lead to
gigantism.
pituitary dwarfism.
cretinism.
all of the above.
Growth hormone (GH) acts on
most tissues in the body.
thyroid gland.
adrenal cortex.
ovarian follicles in the female.
Function of adrenocorticotropic hormone (ACTH) is to
increase secretion of thyroid hormone.
increase secretion of adrenocortical hormones, especially glucocorticoids such as cortisol.
mature follicle and secrete estrogen in the female.
produce progesterone in female.
All of these are functions of luteinizing hormone (LH) except
ovulation.
progesterone production in female.
stimulates milk production.
testosterone production in male.
Oxytocin acts on _____(1)_____ to _____(2)_____.
(1) uterus;
(2) increases water reabsorption
(1) mammary gland;
(2) stimulates milk production
(1) uterus;
(2) stimulates ejection of milk from mammary gland
(1) mammary gland;
(2) stimulates ejection of milk from mammary gland
All of these are correct for calcitonin except
essential for normal growth and development.
acts primarily on bone.
decreases blood calcium by inhibiting bone breakdown and release of calcium.
antagonistic to parathyroid bone.
All of the target tissue and principal action for parathyroid hormone (PTH) below are correct except
bone - increases blood calcium by stimulating bone breakdown and release of calcium.
bone - decreases blood calcium by inhibiting bone breakdown and release of calcium.
kidney - decreases calcium lost in urine.
digestive tract - increases calcium absorption in the digestive tract.
Glucocorticoids (cortisol) is produced by
ovaries.
pineal gland.
adrenal glands.
pancreas.
All of these are functions of epinephrine and norepinephrine except
helps cope with stress.
increases heart rate and blood pressure.
increases blood flow to skeletal muscle.
decreases blood glucose level.
The hormone that decreases blood glucose levels by facilitating uptake and utilization of glucose by cells is
insulin.
glucagon.
androgens.
aldosterone.
All of these are functions of testosterone except
increased male sexual drive.
decrease skeletal and muscular growth.
the growth and development of the male reproductive structures.
enlargement of the larynx accompanied by voice changes.
The function of estrogens is for
ovulation.
stimulates milk production.
maturation and maintenance of female reproductive organs and secondary sex characteristics.
preparing uterus for pregnancy.
Melatonin that regulate circadian rhythms is produced by
pituitary gland.
thyroid gland.
adrenals glands.
pineal gland.
