Seminiferous tubules - ANS-spermatogenesis occurs in the
Decrease in size - ANS-following castration the male reproductive organs
Spermatogonium - ANS-this forms the primary spermatocyte
2 secondary spermatocytes - ANS-the primary spermatocyte forms
2 spermatids - ANS-the secondary spermatocytes form
Bulbourethral gland - ANS-this gland's secretions neutralizes traced of acidic urine in
the urethra and serves as a lubricant during sexual intercourse
Mature sperm - ANS-50%contain X chromosome and 50% contain Y chromosome, all
contain and acrosome
, Testosterone - ANS-the function of this hormone in secondary male sexual
characteristics include muscle and skeletal growth
Estrogen - ANS-this hormone causes the proliferation of breasts
Progesterone - ANS-this hormone prepares the mammary glands for lactation
Midsycle - ANS-ovulation occurs when in the ovarian cycle
Progesterone and estrogen - ANS-the corpus luteum secretes
Fall - ANS-menstruation is initiated by the ____ in the level of female hormones
14 - ANS-ovulation occurs after ___ days after the beginning of menses
Breasts - ANS-the first sign of puberty in females is
Decreased testosterone secretion - ANS-low secretion of LH hormone in an adult male
would
One mature ovum - ANS-in oogenesis ____ _____ _____ is produced
4 mature sperm - ANS-in spermatogenesis ____ ______ _____ is produced
Interstitial / Leydig cells - ANS-the cells that produce testosterone in the testis are called
Secretes estrogen and progesterone - ANS-after ovulation the corpus luteum
Secretory phase - ANS-after ovulation the endometrium enters its _____ Phase
Gonadotropin - ANS-after ovulation the secretion of anterior pituitary ______ is inhibited
Ectoderm, mesoderm, endoderm - ANS-the three germ layers
Uterine tube - ANS-a zygote is usually formed within a ____ ______
End of week 8 - ANS-the embryonic stage lasts until the
Mixing of oxygenated blood and non-oxygenated blood - ANS-the failure of the foramen
ovale to close at birth results in
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