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30 Cards in this Set
- Front
- Back
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CRH seceretion would not raise the blood concentration of ________.
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Thyroxine
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Which of the following hormones has the least in common with the others?
a) adrenocorticotropic hormone b) follicle stimulating hormone c) thyrotropin d) thryroxine e) prolactin |
Thyroxine
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which hormone would no londer be secreted if the hypothalo-hypophyseal tract were detroyed?
a) oxytocin b) follicle stimulating hormone c) growth hormone d) adrenocorticotropic hormone e) corticosterone |
oxytocin
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which of the following is NOT a hormone?
a) prolactin b) prolactin - inhibiting hormone c) thryroxine binding globulin d) atrial natriuretic peptide e) cortisol |
Thyroxine binding globulin
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The receptors for insulin are located in the ___________.
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On the target cell membrane
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what would be the ceonsequence of defective ADH receptors?
a) diabetes mellitus b) adrenogenital syndrome c) dehydration d) seasonal affective disorder e) none of these |
Dehydration
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which of these has more exocrine than endocrine tissue?
a) the pineal gland b) the adenohypophysis c) the thyroid gland d) the pancreas e) the adrenal gland |
The pancreas
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which of these cells stimulate bone deposition?
a) alpha cells b) beta cells c) C cells d) G cells e) T cells |
C cells
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Which of these hormones relies on cAMP as a second messenger
a) ACTH b) progesterone c) thyroxine d) testosterone e) estrogen |
ACTH
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prostaglandins are derived from___________.
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arachidonic acid
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The ______ develops from the hypophyseal pouch of the embryo
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adenohypophysis
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Thyroxine (T4) is synthesized by combining two iodinated molecules of the amino acid ________.
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Tyrosine
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Growth hormone hypersecretion in adulthood causes a disease called ______.
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acromegaly
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The dominant hormone in the stage of resistance of the stress response is ________.
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Cortisol
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Adrenal steroids that regulate glucose metabolism are collectively called ______.
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glucocorticoids
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Testosterone is secreted by the ______ cells of the testis
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intersitial
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target cells can reduce pituitary secretion by a process called _______.
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Negative feedback inhibition
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Hypothalamic releasing factors are delivered to the anterior pituitary by a network of blood vessels called the _______.
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Hypophyseal portal system
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A hormone is said to have a/an _______ effect when it stimulates the target cell to develop receptors for other hormones to follow
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Permissive
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______is a process in which a cell increases is numer of receptors for a hormone
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up-regulation
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True or false?
Castration would raise a man's blood gonadotropin concentration |
True
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True or False?
Hormones in the glycoprotein class cannot have cytoplasmic or nuclear receptors in their target cells |
True
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Epinepherine and thyroid hormone have the same effects on metabolic rate and blood pressure
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True
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True or false?
Tumors can lead to either hyposecretion or hypersecretion of various hormones |
True
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All hormones are secreted by endocrine glands
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False, hormones are also secreted by the hear, liver, kidneys, and other organs not generally regarded as glands
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True or false?
An atherosclerotic deposit that blocked blood flow in the hypophyseal portal system would cause the testes and ovaries to malfunction |
True
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True or false?
The pineal gland and thymus are larger in adults than children |
False, the pineal gland and thymus undergo involution with age
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True or false?
A deficiency of dietary iodine would lead to a negative feedback inhibition of TSH synthesis |
False, without iodine there is no thyroid hormone (TH); withouth TH there can be no negative feedback inhibition
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True or false?
The tissue at the center of the adrenal gland is called the zona reticularis |
False, the tissue at the center is the adrenal medulla
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True of false?
Of the endocrine organs covered in this chapter, only adrenal glands are paired; the rest are simple |
False, There are also two testes, two ovaries and four parathyroid glands
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