reproduction system

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Author:
mamichula
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121929
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reproduction system
Updated:
2011-12-08 15:55:32
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anatomy
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  1. the _____ are the males gonads
    testes
  2. the _____ are the sites of sperm production within the male gonads
    seminiferous tubules
  3. The site of sperm maturation and storage is the _____.
    epididymis
  4. The tube that carries sperm from the epididymis to the ejaculatory duct is the _____.
    ductus (Vas) deferens
  5. The _____ secrete a thick, alkaline fluid enriched with fructose
    seminal vesicles
  6. The mixture of seminal fluids and sperm that is ejaculated from the penis is _____.
    semen
  7. The _____ is the male coital organ; it consists of a root, a body and a glans.
    penis
  8. The _____ are the female gonads.
    ovaries
  9. The _____ are the normal sites of fertilization.
    uterine (Fallopian) tubes
  10. The ______ houses the embryo/fetus during most of its development.
    uterus
  11. The muscular middle layer of the uterus is the ______.
    myometrium
  12. The _____ is the passage way for sperm and menstrual flow and is the inferior region of the birth canal
    vagina
  13. The mons pubis, labia majora, labia minora and clitoris are some of the parts of the _____, or external genitalia, of the female.
    vulva
  14. The diamond-shaped area at the inferior end of the trunk, medial to the thighs and buttocks, is the _____.
    perineum
  15. The _____ glands are the modified sweat glands involved in lactation.
    mammary
  16. Most females of reproductive age undergo a monthly ______, which produces a secondary oocyte and prepare the uterine lining to receive a fertilized egg.
    reproductive cycle
  17. The hypothalamic hormone that triggers the release of FSH and LH is _____.
    GnRH1
  18. The rupture of the dominant mature (Graafian) follicle and the release of a secondary oocyte into the pelvic cavity is ______.
    ovulation
  19. Controlling fertility and preventing conception are some mechanisms of ______.
    birth control
  20. Without the presence of dihydrotestosterone or Mullerian-inhibiting substance, an embryo will develop a ______ reproductive system.
    female
  21. The period when secondary sex characteristics begin to develop is ______.
    puberty
  22. Describe the functions of testosterone.
    Testosterone promotes the development and maintenance of male secondary sex characteristics, protein anabolism1091, Development of sexual function (behavior, libido, spermatogenesis), and the male pattern of development during prenatal life
  23. Trace the path of a sperm cell from the site of its maturation to the site where it leaves the male body. Include descriptions of fluids added along that path
    Sperm mature in the epididymis. From there, they travel through the ductus (Vas) deferens into the abdominal cavity. The ampulla of the ductus deferens merges with the duct of the seminal vesicle to form the ejaculatory duct. Sperm and the alkaline, fructose-rich fluid from the seminal vesicle move from the ejaculatory duct into the prostatic urethra, where they are mixed with a slightly acidic mucoid fluid from the prostate. Next the sperm and fluid pass through the membranous urethra and are mixed with additional alkaline secretions from the bulbourethral glands. The combination of sperm and secretions is called semen. The mixture travels through the penile urethra as it is ejaculated.
  24. what is reproduction
    • the formation
    • of new cells for tissue growth, repair, or replacement,
    • or (2) the production of a new individual.
  25. what is the scrotum?
    • The scrotum (SKRO¯ -tum bag), the supporting structure for the
    • testes, consists of loose skin and underlying subcutaneous layer
    • that hangs from the root (attached portion) of the penis
  26. Vas deferens
    • Within the tail of the epididymis, the ductus epididymis becomes
    • less convoluted, and its diameter increases. Beyond this
    • point, the duct is known as the ductus deferens or vas deferens
    • (DEF-er-enz) (see Figure 28.3a). The ductus deferens, which is
    • about 45 cm (18 in.) long, ascends along the posterior border of
    • the epididymis through the spermatic cord and then enters the
    • pelvic cavity. There it loops over the ureter and passes over the
    • side and down the posterior surface of the urinary bladder
  27. Spermatogenesis
    which occurs in the testes, is the process whereby immature spermatogonia develop into sperm.
  28. Sertoli cells
    • Sertoli cells (sustentacular cells), which nourish sperm cells and secrete inhibin;
    • and Leydig (interstitial) cells, which produce the male sex hormone testosterone
  29. oogenesis
  30. Oogenesis (the production of haploid secondary oocytes) begins in the ovaries. The oogenesis sequence
    • includes meiosis I and meiosis II, which goes to completion only after an ovulated secondary oocyte is
    • fertilized by a sperm cell.
  31. what hormone controls the ovarian cycle
    • The uterine and ovarian cycles are controlled by GnRH from the hypothalamus, which stimulates the
    • release of FSH and LH by the anterior pituitary. FSH and LH stimulate development of follicles and
    • secretion of estrogens by the follicles. LH also stimulates ovulation, formation of the corpus luteum,
    • and the secretion of progesterone and estrogens by the corpus luteum.
  32. function of relaxin
    • Relaxin relaxes the myometrium at the time of possible implantation. At the end of a pregnancy, relaxin
    • increases the flexibility of the pubic symphysis and helps dilate the uterine cervix to facilitate delivery.
  33. what layer is shed?
    • During the menstrual phase, the stratum functionalis of the endometrium is shed, discharging blood,
    • tissue fluid, mucus, and epithelial cells.

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