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Ch 28

Reproductive System

what does the Male Reproductive system consist of? Organs include: testes, ductus deferenes, epididymis, ejaculatory ducts, urethra seminal vesicles, prostate, bulbourethral glands, scrotum and penis.
what is Parasympathetic innervation ? an erection is brought about; leading to vasodilation of arterioles in erectile tissue (s2, 3, 4, keeps the penis off the floor)
what is Sympathetic stimulation? ejaculation is the powerful release of semen; the bulbospongiosus, ischiovacernosus and superficial transverse perineal muscles contact to force the semen out
a mature (graafian) follicle is? ready to rupture and expel the secondary oocyes
describe corpus luteum develops after ovulation when the empty follicle produces progesterone, estrogens, inhibin and relaxin
what is the uterus part of? the pathway for sperm deposited in the vagina to reach the uterine tube
what is the site of implantation the fertilized ovum development of the fetus during pregnancy and labor
what is the top of the uterus? fundus
what is the central portion called? the body
the inferior extension to the vagina cervix
isthmus is between what? the body and the cervix
the interior of the body is uterine cavity
the interior of the cervix is cervical canal
the opening of the canal into the uterus is the internal os
the opening of the canal into the vagina external os
how many layers is the uterus? 3 layers
uterus middle layer myometrium
uterus outer most layer perimetrium
the inner later of the uterus endometrium
what layer is shed each month? stratum functionalis later
what layer is permanent and gives rise to a new stratum functionalis after each menstruation stratum basalis
what does the vulva refer to? external genitalia of the female
what does the external genitalia include? mons pubis, labia minora, labia majora, clitoris, vestibule
what does prolactin stimulate? milk production in the lactiferous gland
smooth muscle contraction in the lactiferous glands and ducts to deliver milk to the nursing baby oxytocin
what do non pregnant females experience? cyclical changes in the ovaries and uterus
how long does each cycle take? one month
what does the cycle involve? oogenesis and preparation by the uterus to receive a fertilized ovum
ovarian cycle includes changes that occur during the after maturation of the oocyte
uterine cycle involves changes in the endometrium that prepare for implantation of the developing embryo
what can the female reproductive cycle be disrupted by? weight loss, low body weight, disordered eating and or vigorous physical activity
what constitutes the females athletic triad disordered eating, amenorrhea and osteoporosis constitute
what is the absence of menstruation amenorrhea
what component of the female external genitalia corresponds to the male clitorus
weight fluctuation and excessive physical activity decreases what? hypothalamic secretion of gonadotropin- releasing hormone
what decreased secretion of FSH and LH from the anterior pituitary gland failure of the ovarian follicles to develop
what does leptin signal? hypothalamus as to the level of energy reserves in adipose tissue
low adipose results in low leptin which may then decrease GnRH
Created by: Maguiar