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In the urinogenital organs of rabbit which one of following part is present in male but not in female?
Grey crescent is the area:
A couple have been trying to conceive a child for over a year without success. Recently,the man’s doctor informed him that his seminal vesicles are defective. This means that
Seminal vesicles produce the fructose sugars that power the sperm’s mitochondria.
The human embryo, with 8 to 16 blastomere is called
Which of the following organ is differentiated first during development?
Which chemical of the eggs attracts and holds sperm ?
At the time of fertilization sperm head enters in the egg from
All of the following statements concerning pregnancy are accurate EXCEPT
The high levels of estrogen and progesterone in the maternal circulation during pregnancy inhibit the cyclic release of pituitary gonadotropins and prevent the menstrual cycles. Pregnancy hormones include HCG, which maintains the corpus luteum of pregnancy and forms the basis for pregnancy diagnosis urine tests. Ovarian and placental estrogen and progesterone, human placental lactogen, and pituitary prolactin stimulate development of the ducts and alveoli in the mammary glands.
Menstruation is initiated by
A decrease in estrogen and progesterone as the corpus luteum degenerates (in the absence of pregnancy) initiates menstruation.
Which of the following is not part of the female external genitalia ?
The vagina is an internal reproductive organ and is not considered part of the vulva.