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29 Cards in this Set

  • Front
  • Back
The endocrine system consists of glands that release chemicals:
into the blood
Second messengers are important in the functioning of:
protein hormones
Protein hormones have hormone receptors in the:
cell membrane
Steroid hormones have hormone receptors in the:
nucleus of the cell
Steroid hormones:
cause protein synthesis in the cell
Hormones:
can use positive feedback mechanisms and negative feedback mechanisms
TSH:
is secreted by the adenohypophysis and stimulates the release of thyroid hormone
Hyposecretion of growth hormone can produce:
dwarfism
Hypersecretion of growth hormone can produce:
acromegaly and gigantism
Hypersecretion of growth hormone after normal growth years can produce:
acromegaly
Oxytocin:
- is released by the posterior pituitary gland
- stimulates uterine contraction
- uses a positive feedback mechanism
Diabetes insipidus:
casues dehydration
The thyroid gland:
is found in the neck
Calcitonin causes:
a decrease in the blood concentration of calcium
A condition casued by hypothyroidism resulting from a low dietary intake of iodine is called:
simple goiter
Hypothyroidism that occurs later in life can lead to:
myxedema
Aldosterone:
is a mineralcorticoid
Aldosterone:
increases blood sodium levels
Aldosterone has its effects mainly on the cells of the:
kidney
Cortisol:
- is made in the middle zone of the adrenal cortex
- is a glucocorticoid
- has an antiimmunity effect
Androgens, which are similar to testoserone:
are secreted by the inner zone of the adrenal cortex
Epinephrine:
is released in response to stress
This can occur in women with hypersecretion of androgens from the adrenal gland:
virilization
Insulin:
- is made by beta cells in the pancreas
- has the opposite effect of glucagon
- decreases the blood glucose level
The ovary secretes:
Estrogen
The corpus luteum secretes mostly:
progesterone but some estrogen
Testosterone is:
produced by the interstitial cells of the testes and the masculinizing hormone
The placenta releases:
- chorionic gonadotropins
- progesterone
- estrogen
The pineal gland is:
- located in the mediastinum
- sometiems called the "third eye"