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ANS3319C Exam 1

Male and Female Anatomy, Endocrinology

QuestionAnswer
Anatomical location on mare ovary where follicle is ovulated Ovulation fossa
Lipid Hormones derived from arachiodonic acid Prostaglandins
Structure that prevents bacteria from entering uterus during pregnancy cervix
ovarian structure that has multiple layers of granulosa cells Tertiary follicle
ovarian steroid hormone that initiates behavioral estrus estrogen
steroid secreting cells located in the interstitial area of testes Leydig cells
compound that serves as precursor to steroid hormones cholesterol
ovarian or testes glycoprotein that inhibits FSH secretion Inhibin
Pituitary hormone responsible for ovulation Luteinizing hormone
the rate that a hormone is cleared from the circulatory system determines this half-life
when this structure is stimulated, it initiates ejaculation in most animals glans penis
the general term for regulation of hormone secretion feedback regulation
procedure used to determine the pregnancy status in the urine of women ELISA
common name of cellular mass that comprises 70% of testis parenchyma
lab procedure used to measure hormone concentrations in blood radioimmunoassay
suspensory tissue surrounding the reproductive tract broad ligament
cellular location of receptors for steroid hormones nucleus
hypothalamic hormone that initiates LH surge GnRH
specific anatomical structure in testes where spermatogenesis occurs seminiferous tubules
name of bone that houses and protects pituitary sphenoid
structure that moves sperm from epididymis to ampulla vas deferens
somatic cells that serve as nurse cells for sperm sertoli cells
airborne chemical messengers secreted by vestibular glands pheromones
cellular location of receptors for protein ormones plasma membrane
animal with a vascular penis stallion
animal with a fibroelastic penis bull and boar
the three primary functions of the epididymis sperm development, sperm storage, and secretion of oxytocin
Known as the pregnancy hormone, it prevents expression of the uterus, blocks myometrial contractions during pregnancy, and stimulates uterine secretions in the early pregnant animal progesterone
the three layers of the uterus endometrium, myometrium, perimetrium
what makes the dog penis unique it has a bulbous glandis and an os-penis or baculum
where semen is deposited in the mare, cow, and dog fornix vagina
where semen is deposited in the sow cervix
primary hormone secreted by the follicle estrogen
primary hormone secreted by the corpus luteum progesterone
seminal plasma is secreted from these accessory glands
accessory sex glands consist of the prostate, cowper's (bulbourethral), and seminal vesicles
Name 2 functions of the uterus 1) Sperm transport by contraction of the myometrium to move sperm from the cervix towards the oviduct, 2) Regulation of the corpus luteum by the production of prostaglandin F2alpha
how the uterus provides nourishment for an embryo eventual placenta attachment
how the uterus assists in expelling a fetus myometrial contractions and allow for involution of uterus
how much cooler must the testes be compared to body temperature? 4-6 degrees C
name of tissue layer populated with sweat glands to allow for evaporative cooling scrotum
smooth muscle that changes surface area of the scrotum tunica dartos
anatomical structure located in the spermatic cord that allows for counter-current heat exchange pampiniform plexus
skeletal muscle in spermatic cord that facilitates blood flow to the answer for question 2d cremaster muscle
endocrine gland located in the ventral brain that surrounds the third ventricle, consists of paired nerve cell bodies, and releases neuropeptides hypothalamus
hormone secreted from the preoptic nucleus, which is part of the endocrine gland in the hypothalamus GnRH
Male function of the release of LH stimulates testosterone production
female function of the release of LH stimulates ovulation
male function of the release of FSH stimulates spermatogenesis
female function of the release of FSH increases estrogen production
how hormones from the hypothalamus stimulate the release of hormones from the anterior pituitary when it is known they aren't physically connected they are released into the hypothalamic-hypophyseal portal system and transported to the anterior pituitary via a network of capillaries
hormone synthesized and secreted from the paraventricular nucleus oxytocin
where oxytocin is stored and eventually sent into the blood stream posterior pituitary
in the female, oxytocin has what two effects? promotes uterine synthesis of Prostaglandin F2 alpha, milk ejection
strength of a hormone determined by 4 factors, two due to the hormone itself are half-life, level of production (episodic, sporadic, basal)
strength of a hormone determined by 2 factors concerning the receptor affinity and density
primary function of testosterone on the testes to stimulate spermatogenesis and the development of the testes
why a castrated animal can't produce seminal fluid testosterone is required for the accessory sex glands that produce seminal fluid to develop
what does testosterone have on the phenotype and behavior of a male? increases anabolic muscle growth, gives secondary sex characteristics, maintains libido and reproductive tract function
Created by: ahiggins27