Chapter 9 : Drugs Used in Hormonal, Endocrine, and Reproductive Disorders Flashcards
The constructive phase of metabolism in which body cells repair and replace tissue
Anabolism
A chemical compound having a structure similar to another but differing from it in some way
Analogue
Hyperadrenocorticism; a disease or syndrom characterized by an overabundance of corticosteroid hormones
Cushing’s syndrome
Difficult birth
Dystocia
The mucous membrane lining of the uterus
Endometrium
A normal thyroid gland
Euthyroid
The rate at which animals conversy feed into tissue; expressed in pounds of feed needed to produce 1 lb of animal
Feed efficiency
The return of some of the output product of a process as input in a way that controls the process
Feedback
A hormone that stimulates the ovaries or testes
Gonadotropin
The portal system of the pituitary gland in which venules from the hypothalamus connect with capillaries of the anterior pituitary
Hypophyseal portal system
Caused by physician
Iatrogenic
The return of a reproductive organ to normal size after delivery
Involution
Left-sided arrangement of a molecule that may exist in a left- or right-sided configuration
Levo Isomer
A muscle fibril composed of numerous myofilaments
Myofibril
The condition of the body as it relates to protein intake and use; positive implies a net gain in body protein
Nitrogen balance
Hypothyroidism resulting from a pathologic condition of the thyroid
Primary hypothyroidism
A hormone produced by the hypothalamus and transported to the anterior pituitary to stimulate the release of trophic hormones
Releasing factor
A hormone that results in production of a second hormone in a target gland
Trophic hormone
Describe the relationship between hormonal releasing factors, trophic hormones, and hormones produced by specific tissues or glands
Releasing factors (RFs) are messengers made by the hypothalamus in response to its detection of hormone levels in the blood. RFs send messages to the pituitary to stimulate this gland to manufacture trophic hormones. Trophic hormones, in turn, stimulate a specific tissue or gland to produce the hormone in question.
<p>List the major endocrine glands (5)</p>
<p>1) Pituitary
2) Thyroid
3) Ovaries / Testicles
4) Adrenals
5) Pancreas</p>
What are the reasons for using hormonal therapy in veterinary medicine?
To correct a deficiency or to produce a desired effect
Where is the pituitary gland located and what is its function?
The pituitary gland is located at the base of the brain ventral to the hypothalamus, and its primary function is to control the activity of the other endocrine glands.
The release of oxytocin by the posterior pituitary is controlled through the ____ mechanism
Neurohormonal reflex
GnRH is classified as a
Gonadotropin
List 3 potential uses of prostaglandins in veterinary medicine
1) Estrus synchronization 2) Induction of abortion 3) Induction of estrus
