Term
What are the two main systems of control? |
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Definition
Nervous and endocrine system. |
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Term
What is the endocrine system responsible for? |
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Definition
The secretion of hormones. |
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Term
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Definition
Body regulating chemicals secreted by glands. |
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Term
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Definition
Carried throughout the body by the bloodstream. |
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Term
How is the pituitary gland divided? |
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Definition
anterier and posterior pituitary |
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Term
What does the anterior pituitary produce? |
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Definition
FSH (Follicle Stimulating Hormone) LH (Leutinizing Hormone) GH (Growth Hormone) TSH (Thyroid Stimulating Hormone) ACTH Prolactin |
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Term
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Definition
Causes the development of the follicle in the ovary. |
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Term
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Definition
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Term
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Definition
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Term
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Definition
Has a general action on metabolism. Aids in growth regulation. |
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Term
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Definition
Causes the secretion of thyroxine. |
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Term
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Definition
The adrenal cortex to produce cortisol. |
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Term
What does the posterior pituitary prodcue? |
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Definition
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Term
What does oxytocin cause? |
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Definition
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Term
What does the pancreas produce? |
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Definition
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Term
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Definition
Control the level of sugar in the blood. |
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Term
What does the thyroid gland produce? |
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Definition
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Term
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Definition
Involved in metabolic control |
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Term
Where are the 2 adrenal glands located? |
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Definition
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Term
What does the adrenal gland consist of? |
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Definition
Adrenal cortex and the adrenal medulla |
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Term
What does the adrenal cortex produce? |
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Definition
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Term
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Definition
Affects the water content of tissues. |
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Term
What does the adrenal medulla do? |
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Definition
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Term
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Definition
"Fight/Flight Hormone", increases heartrate and blood supply to muscles, also affects sweating |
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Term
What does the yellow body of the ovary produce? |
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Definition
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Term
What does progesterone do? |
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Definition
Causes the changes of diestrus and pregnancy |
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Term
What does the yellow body follicle of the ovary produce? |
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Definition
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Term
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Definition
Causes estrus (heat) and associated behavior |
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Term
What does the uterus produce? |
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Definition
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Term
What does prostagladin do? |
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Definition
Stops the secretion of progesterone |
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Term
What does PMSG stand for? |
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Definition
Pregnant Mare's Serum Gonadotrophin |
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Term
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Definition
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Term
What does the pineal gland do? |
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Definition
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Term
What are steroid hormones? |
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Definition
Hormones that have a chemical structure of 4 carbon rings and are therefore closely related to one another. |
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Term
What do steroid hormones include? |
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Definition
Progesterone, estrogen, testosterone, and cortisone -- the body can change one steroid hormone into another |
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Term
What is secreted in non-pregnant mares by the yellow body of the ovary? |
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Definition
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Term
Where is progesterone secreted by pregnant mares? |
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Definition
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Term
What does a detectable amount of progesterone in the blood indicate? |
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Definition
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Term
What does a high amount of progesterone in the blood indicate? |
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Definition
The mare is in the first 120 days of pregnancy. |
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Term
What happens when there is no progesterone present in the bloodstream? |
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Definition
The mare is over 120 days pregnant. |
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Term
Is progesterone detectable in the pregnant mare's reproductive tract? |
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Definition
Yes, just not in her bloodstream after 120 days. |
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Term
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Definition
Hormones secreted by the lining of the follicles in the ovaries. |
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Term
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Definition
Used to diagnose pregancy after 120 days, tests for estrogen in the urine. |
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Term
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Definition
Estradiol, Estrone sulphate, Estrone, Equenin, Equilinin |
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Term
What estrogens are unique to the horse family? When are they produced? |
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Definition
Equenin and equilinin, only during pregnacy |
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Term
What are estrogens responsible for? |
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Definition
Signs of heat, feminine characteristics, and fetal growth |
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Term
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Definition
The outerlining of the adrenal gland (adrenal cortex) |
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Term
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Definition
Stimulates the metablolish and prepares an individual for strenuous activity. |
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Term
Corisone is released when what happens? |
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Definition
ACTH is secreted by the pituitary |
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Term
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Definition
The male sex hormone secreted by the testes. |
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Term
What is testosterone responsible for? |
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Definition
Male characteristics, libido, retention of nitrogen in the body |
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Term
Why is testosterone sometimes injected into racehorses? |
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Definition
Promotes muscle development (against Jockey Club rules) |
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Term
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Definition
Stimulates the grwowth of follicles in the ovary, also stimualtes secretion of estrogen |
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Term
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Definition
equine Chorionic Gonadotrophin of eCG |
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Term
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Definition
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Term
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Definition
In the chorion of the placenta in the uterus of a pregnant mare. |
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Term
How does PMSG maintain pregnancy? |
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Definition
Protects the fetus against the mare's immune system. |
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Term
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Definition
Gonadotrophin Releasing Hormone |
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Term
Where is GnRH produced and what does it do? |
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Definition
Produced in the brain/Causes the secretion of FSH and LH |
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