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Biology 30 (Alberta) Reproduction and Embryology Qs & As
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Biology 30 (Alberta) Reproduction and Embryology Qs & As
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Biology 30 (Alberta) Reproduction and Embryology Qs &As
What are the names of Hormone X and Y?
LH and Testosterone -✔✔ The pituitary releases (X Hormone) which targets the interstitial
cells
in the testes. Theses interstitial cells produces (Y Hormone). (Y Hormone) stimulates the
development of secondary sexual traits (such as increase in the size of the genitalia,
deepening
of the voice, and increased skeletal muscle mass.)
(Y Hormone) sends negative feedback to the hypothalamus to stop producing GnRH and to
the
Pituitary to stop producing (X Hormone.)
What are the names of hormone X and Y?
Epididymis (cont.) -✔✔ Involved in spermatid maturation. At the top of the structure, there
are
immature sperm that are incapable of fertilization. At the bottom (near the vas), there are
mature sperm that are capable of fertilization.
Anatomy of sperm -✔✔ 1) Acrosome - Contains digestive enzymes that break down the egg
membrane (Zona Pellucida) during fertilization.
, 2) Mid piece - Contains mitochondria. The mid piece combusts fructose. It is also responsible
in
the production of ATP to provide energy to move the flagella.
3) Flagella - Used for sperm locomotion.
Vasectomy (birth control) -✔✔ Cutting or plugging of the vas deferens so that no sperm is
ejaculated.
GnRH -✔✔ A trophic hormone that is responsible for the release of FSH and LH from the
anterior pituitary.
Ovary -✔✔ a) Produces the female gamete. The gamete can go by the name of egg, ovum, or
oocyte (n=23)
b) Produces the female sex hormones - estrogen and progesterone.
Fallopian tube (oviduct) -✔✔ a) Receives egg during ovulation.
b) Site of fertilization.
Uterus -✔✔ This anatomical structure has two parts.
a) Myometrium - Smooth muscle used to birth baby and placenta.
b) Endometrium - Inner lining of the uterus that provides a nutritional source for the baby
prior
to the formation of the placenta.
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