Human+Sexual+Reproduction+(Unit+5,+Subtopic+C)

=**//__Human Sexual Reproduction Power Notes (the student's view)__//**= By: Kimanh Nguyen (edited by Pedro Munoz)

__//**Sexual vs. Asexual**//__

 * ====**Asexual** is a type of reproduction where the parent cell splits (not requiring gametes to combine to form a new cell) and creates two identical daughter cells (copying process)====
 * ====**Sexual** is a type of reproduction where there is the fusion of two gametes to create a diploid zygote during sexual intercourse (recombination)====

__//**Gameotogenesis**//__

 * ====**Spermatogenesis**====

- Men produce about 250,000,000 sperm per day

 * ===**Oogenesis**===

__//**Mammalia Genitalia**//__

 * ====**Female**====

- (Done in anatomy project)

 * ====**Male**====

__//**Puberty & Menstrual Cycle**//__

 * ====Such hormones of puberty do not come out until a certain age in which their body says that they are able to care for new organism if were born====

- Physical & mental changes will begin such as the beginning of one gender being attracted by the other and the enlargement of some body parts such as the breasts & hips.

 * ====Menstrual Cycle====

__//**Fertilization & Implantation**//__

 * ====**Fertilization**====

**-** Role
====a.) To create a new, varied organism & to restore diploidy (2n) which is the reason why gamete cells are haploid (n), so when they fuse, they create a new diploid cell & not a cell with double the amount of genes.====


 * ===Implantation===

__//**Human Embryonic Development**//__

 * ====__zygote:__ fertilized ovum====
 * ====__embryo:__ an unborn or unhatched offspring in the process of development====
 * ====__morula:__ solid ball of cells resulting from division of a fertilized ovum====
 * ====__blastula:__ a solid ball of cells that is hollow on the inside====
 * ====__gastrula:__ a hollow cup-shaped structure that have three layers of cells====
 * ====__neurula:__ an embryo at the early stage of development in which neurulation occurs====
 * ====__carnegie stages__: stages when the baby in the fetus resemble the embryo of another organism except human====
 * ====__fetal stages__: stages in which the embryo of a human resembles a human====
 * ====__gastrulation:__ the process in which a gastrula develops from a blastula by the inward migration of cells====
 * ====__neurulation:__ the process by which the beginnings of the vertebrate nervous system is formed in embryos====
 * ====**Gestation Support System**====

- __placenta__: the area on the mother where the umbilical chord is connected to.
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