Embryo Formation, Reproductive System, and Urinary System

Stages of Embryo Formation

I was wondering at which stage of embryo formation does different parts of the body form? For instance, at which stage does the arms and hands form? At which stage do the organs form? Then read what my classmates wrote and…. Reply to their articles. Add any informational and educational concepts and ask clarifying questions.

New information should reference at least one source cited in APA Style. 85 words MINIMUM for each Classmate.

Describe the structure and function of the male and female reproductive systems and how to compare the hormones that influence reproduction with respect to males and females. Sex hormones are responsible for puberty. The two different types of hormones are oestrogen and testorsterone. Oestrogen is the female reproductive hormones.

they cause the eggs to mature in the overies once a girl hits puberty. Testosterone is the male reproductive hormones. Testosterone stimulates the male's sperm production. follicle stimulating hormones mature the woman's egg, the luteinising hormone stimulates the release of the egg, and oestrogen and progesterone maintain the lining of the uterus. The male reproductive system consists of the external organs called testes.

The testes in the scrotum produce sperm that is ejaculated in a fluid through the penis. There are three categories to the male reproductive organs. The first category is sperm production and storage. The testes are in the scrotum that regulates the temperature. The second category, the ejaculatory fluid-producing glands, including the seminal vesicles, prostate an vas deferens. The last category is for copulation and deposition of the sperm within the female.

These organs include the penis, urethra, vas dererens, and cowper's glands. The female reproductive system is mostly internal organs, but there are external parts. The gamete, which is the germ cell that creates the zygote, is called the ovum. The ovum is produced in the ovaries and released monthly through the uterus via the fallopian tubes. The fallopian tubes are also known as the oviducts, uterine tubes, and salpinges.

They are two fine tubes lined with ciliated epithelia leading from the ovaries of female mammals into the uterus. There are three main parts to the female reproductive system. These parts are the vagina, which leads from the vaginal opening to the uterus. The uterus holds the developing fetus. The ovaries produce the females ova. The breasts are also a reproductive organ during parenting, but are usually not classified as part of the female reproductive organs.

Structure and Function of Reproductive System

The outside of the vagina consist of the labia, clitoris, and urethra. Mucus is then secreted by the Bartholin's glands. The uterus is connected to the vagina via the cervix. Add any informational and educational concepts and ask clarifying questions. New information should reference at least one source cited in APA Style.

Describe the structure and function of the urinary system. Identify major factors influencing fluid and electrolyte balance. The urinary system is what keeps our bodies free of waste materials and helps our bodies stay in homeostasis. There are a six main organs in the urinary system that work together as our book states.

There are two kidneys, two ureters, bladder and urethra. They all have different roles in maintaining our body. The kidneys are where the waste is removed from the blood, they are considered a filtering or purification organ. The ureters are tubes that transport urine from the kidneys to the bladder. The ureters are muscular and are set at a certain angle so urine does not move backwards into the kidneys.

Towards the end of the ureters, considered the lower part there are muscles that complete contractions to move the urine through the tubes and into the bladder. The bladder is also a muscle, which can stretch and contract to allow for the amount of urine that needs to be stored at any given time. The bladder can hold up to a liter of urine, but that can differ based on the size of the person.

The next organ in the system is the urethra, which is another tube made of muscle that takes the urine from the bladder out of the body. Our book explains that the male urethra is 5 times longer than females, I find this very fascinating. Homeostasis and balance of water and electrolytes in the body is very important to keep it functioning. The urinary system we discussed above has a lot to do with balancing in the body.

The kidneys specifically have a major function of regulating the volume and composition of bodily fluids as we learned from the article by Berkeley.edu. We lose a lot of water every day through our skin and even our feces. Our kidneys can control the amount of water that is released and concentrate the urine relative to plasma. In relation to the amount of water that is regulated, our bodies regulate the sodium which is also called the osmolarity.

The adrenal cortex in the brain helps our kidneys regulate the amount of sodium in the body, it works directly with the kidneys to ensure proper balance of water and solutes. The levels of water in the body in relation to the amount of sodium can cause cells to shrink or swell. The body is always working towards homeostasis. each so at least 255 words total Facts and references based on American info.