Reproductive System Evelin Morales Period 5 (Male reproductive anatomy …
Major functions of the Reproductive System
the human respiratory system is a series of organs responsible for takingin oxygen and expelling carbon dioxide.
The primary organs of the system are lungs, which carry out this exchange of gases as we breathe.
it provides oxygen to the body's cells while removing carbon dioxide.
a waste product that can lethal if allowed to accumulate.
There are 3 major parts of the respiratory system which is the airway, the lungs, and the muscles of respiration.
Male reproductive anatomy
Various ducts and tubes which act as delivery system for the male gamete.
functions to produce and disseminate a large quantity of male gamete.
Vas Deferens carries sperm from the epididymis to the ejaculatory duct.
spermatogenesis= production of sperm cells and begins at puberty and continues throughout life. takes about 64 to 72 days.
sperm can mature spermatozoa takes about 74 days, not affwected by sexual activity.
sperm lives 30-60 days after maturation.
each lobule contains one to four testes.
goal is to produce sperm and deliver it to the egg.
Female Reproductive System
primary female sex organ.
functions in production of female gamete (ovum and egg) and preparation for support of developing embryo during pregnancy.
Wall of Uterus- inner layer. Allows for implantaion of a fertilized egg. Sloughts off if no pregnancy occurs during menses.
Uterine recieve the ovulated oocyte. provides a site for fertilization. does not physically attch to the ovary.
Mammary glands- modified sweat glands, present in both sexes, stimulated by sex hormones ( mostly in estrogen) to increase in size.
oogensis= process of producing ova or egg cell. and total supply of eggs are present at birth.
Ovaries= female gonad, paired, almoned- shaped organ on either side of uterus.
Formation of gametes
When the haploid male and female gametes unite in a process called fertilization, they form what is called a zygote.
Haploid cells contain only one set of chromosomes.
Gametes are formed by a type of cell division called meiosis.
hormones of the reproductive system and their regulation
In females, FSH stimulates develpment of egg cells, called ova.
Which develop in structures called folliciles.
Estradiol and progesterone are steroid hormones that prepare the body for pregnancy.
Hormal regulation of the female reproductiv e systemm involves hormones from the hypothalamus, pituitary, and ovaries.
Events of the female hormonal
Each cycle can be divided in to three phases based on events in the ovary or in the uterus.
The ovarian cycle consists of the follicular phase, ovualtion, and luteal phase whereas the uterine cycle is divided into menstruation, proliferative phase, and secretory phase.