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Definition
ICSH = Interstitial Cell Stimulating Hormone
aka Leutenizing Hormone (LH)
Stimulates interstitial cells between seminiferous tubules to secrete testosterone. |
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Definition
In the testes, it promotes spermatogenesis
Also promotes secondary sex characteristics in males (deep voice, body hair, enlargement of penis/scrotum) |
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Definition
An endocrine gland that sits atop each kidney (humans have 2)
Divided into the adrenal corte and adrenal medulla |
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Definition
The inner protion of the adrenal gland
It secretes a class of endocrine hormones called catecholamines (epinephrine & norepinephrine)
These hormones ^HR, ^BP, ^Alertness
Their secretion is stimulated by nerve impulses |
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Definition
The outer portion of the adrenal glands.
Secrete a class of hormones called corticosteroids.
Corticosteroids are divided into 4 groups:
Mineralocorticoids (ie aldosterone), Glucocorticoids, Anabolic hormones, & sex hormones |
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Term
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Definition
A mineralocorticoid secreted by the adrenal cortex.
It increases the activity of Na+/K+ pumps primarily at the distal convoluted tube.
This in turn ^ K+ excretion, ^ interstitial [Na+], & ^ H20 conservation
Its secretion is stimulated by ^ extracellular K+, low extracellular Na+, & low fluid levels |
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Term
| Target Hormones of Anterior Pituitary |
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Definition
Prolactin - stimulates breast development and milk production in females.
Growth Hormone (aka Somatotropin) - influences the growth and development of children and infants |
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Term
| Tropic Hormones of the Anterior Pituitary Gland |
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Definition
Tropic hormones are those that stimulate other endocrine glands to release their hormones.
Thyroid Stimulating Hormone (TSH) - Governed by the hypothalamus which releases Thyrotropin Releasing Hormone (TRH)
Adrenocorticotropic Hormone (ACTH) - Stimulates adrenocortical secretion of cortisol. It is also governed by the hypothalamus which secretes Corticotropin Releasing Hormone (CRH) |
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Term
| Hormones of the Posterior Pituitary Gland |
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Definition
Antidiuretic Hormone (ADH) - aka vasopressin)
Oxytocin - secreted during child birth
Both are produced by the hypothalamus & sttored in the posterior pituitary. |
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Term
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Definition
aka ADH, Arganine Vasopressin (AVP)
Produced by the hypothalamus & stored in the posterior pituitary
It induces permeability of collecting ducts in nephrons. As collecting ducts pass through the ^ [salt] of the medulla H2O diffuses out and is retained in the body. |
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Definition
A flat endocrine gland located in the neck.
It secretes Thyroxine (aka thyroid hormone), Triodothyronine, & Calcitonin |
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Definition
| A condition characterized by stunted mental and physical growth due to a deficiency thyroid hormone in the first 6 months of life. |
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Term
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Definition
An endocrine hormone produced by the parafollicular cells of the thyroid.
When administered therapeutically, it decreases blood [Ca2+] & inhibits normal bone resorption.
Bone resorption = breakdown of bone by osteoclasts. |
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Term
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Definition
A set of 4 small glands located posteriorly to the thyroid.
They secrete parathyroid hormone. It has the opposite effects of calcitonin.
^ blood [Ca2+]
^ intestinal uptake of Ca2+
^ uptake of ca@+ in the kidneys
It is secreted in response to low blood [Ca2+] |
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Term
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Definition
Insulin and Glucagon (+ others)
Produced by the Islet Cells in the Islet of Langerhans in the pancreas. |
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