Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Chapter 22 the reproductive systems
Male reproductive anatomy answers
Chapter 22 the reproductive systems
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Chapter 22 the reproductive systems
The Reproductive System Its Functions And Disorders. The reproductive system is the part of the human body that is necessary to continue the human existent. Reproduction in humans normally would begin by a male and female having sexual intercourse with each other. Men and women are both unique in the way their bodies and are formed and developed. Men and women both go through the most changes during their adolescent years when they begin going through puberty. Puberty normally begin in a male from the age of 11 and continues through the age of 16. Boys will develop a deeper voice; growth of hair on their face and body, a boy will have spurts of muscle growth, their testes will begin to produce sperm. A teenage boy will start producing a hormone called testosterone that is produced by their testes. Male’s reproductive system primary genitalia are their testes. The human male reproductive system organs are located outside of the body around the pelvic region of a male (wikipedia, 2010). The testes produce sperm that would fertilize the female’s egg. Males have several secondary genitalia’s the penis, sperm ducts, epididymis, vas deferens and the urethra. The urethra is used for two purposes to urine and to ejaculate semen. Males also have accessory glands such as the prostate gland, seminal vesicles, and bulbourethral glands. The prostate gland contributes fluid for ejaculation. Prostate fluids helps to nourish the sperm (Web Md, 2009). The seminal vesicle makes up most of the volume of a man's ejaculatory fluid and provide the sperm with nutrients that give the sperm energy(Web Md, 2009). Bulbourethral glands produce a clear, slippery fluid that empties directly into the urethra. This fluid serves to lubricate the urethra ... ... middle of paper ... ...dia, The Free Encyclopedia. Retrieved 22:52, March 9, 2010, from http://en.wikipedia.org/w/index.php?title=Reproductive_system&o ldid=348609962 Human reproduction. (2010, March 7). In Wikipedia, The Free Encyclopedia. Retrieved 22:56, March 9, 2010, from http://en.wikipedia.org/w/index.php?title=Human_reproduction&oldid=348343746 MedicineNet, Initials. (2007, September 24). Male reproductive problems: penis disorders. Retrieved from http://www.medicinenet.com/script/main/art.asp?articlekey=42668&pf=3&page= MedicineNet, Initials. (2009, September 21). Male reproductive problems: testicular Disorders. Retrieved from http://www.medicinenet.com/script/main/art.asp?articlekey=42669&pf=3&page=1 Web MD, Initials. (2009, August 21). The Male reproductive system. Retrieved from http://www.webmd.com/sex-relationships/guide/male-reproductive-system?page
The testes produce sperm and sex hormones, testosterone. Surrounding each testis is a coiled tube called the epididymis, which collects and stores sperm, very much similar to that of a human. Before ejaculation a seminal fluid is added by the seminal vesicles, to prevent the sperm from drying out.
Like their female counterparts, men also experience hormonal decline as age increases. The hormone that we consider typically male is called testosterone. Amazingly, the male fetus begins to produce testosterone as shortly as seven weeks after conception. According to Harvard Health, men’s testosterone levels actually peak around age 17. In fact, testosterone levels usually plateau for a while, and then slowly start to decrease around age 30 and 40. The normal rate of decline is about 1 percent per year after the age of 30. By the time a man reaches 80, his testosterone level will be about half of what it was when he was a young man.
The teenage year is the time when the body starts producing sex hormones and goes through a major growth spurt. This is the period when
One stage of adolescent development that my teen went through was puberty. Puberty is different for girls and boys and is manifested differently as they go through many physical and cognitive changes. As I was raising my teen daughter I noticed that the changes in her body during puberty played a role in the way she viewed herself. By age 11 she became more interested in her appearance as a result of some compliments from some boys in her school. She started to wear makeup to school every day and became more interested in buying new clothes and shoes. As pu...
Prostate cancer is one of the most common cancers in men. This cancer effects a gland only in males called the prostate. This gland can be found in below the bladder and in front of the rectum. The purpose of the prostate is to make a portion of the fluid that protects and nourishes sperm cells in semen. The urethra runs through the prostate and carries urine and semen out through the penis.
In today’s society, about seven billion humans are present on Earth, but these individuals did not just magically appear. For this to be possible, a sperm cell must accompany an egg cell, also known as fertilization to create a human being. Sperm and egg cells are created through meiosis, which is a nuclear division that ends in haploid cells that creates mature gametes. Once completed, the sperm begins as a round cell and then generates a tail which gives it mobility to swim to an egg and fertilize it. Fertilization is achievable with the female reproductive system and the male reproductive system. All together, this system is an amalgamation of functional organs and hormones that cooperate together to generate life. The female reproductive system is subject to creating the female sex hormone and egg cell, reception of egg cell from the sperm cell, and providing a location where the fertilized egg can evolve. The male reproductive system is accountable for spawning the male sex hormone, producing sperm, and delivering the sperm to the female’s reproductive system. Once puberty is achieved in females, hormones allow the reproductive system to create mature ova or eggs. In the female body, two white ovaries are present in the uterus, one is located on the left side, and the other is located on the right side. Located inside the ovaries are egg cells and when the female reaches puberty, her egg cells will begin to mature each month. Once they are developed, they will be discharged and enter the fallopian tube. As it is traveling through the tube, it is susceptible to being fertilized by a sperm cell through coitus. If it is fertilized, the egg will adhere to the façade of the uterus and eventually create a follicle and then a zygot...
The hormonal mechanisms that influence the male reproductive functions involve the endocrine tissues, the hypothalamus, anterior pituitary and the reproductive organ that is also considered and endocrine tissue, the testis. In the hypothalamus specific neurosecretory glands secrete GnRH, or gonadotropin releasing hormone. GnRH is carried by the blood to the anterior pituitary gland where it binds to receptors on gonadotrophic cells. The GnRH stimulates the gonadotrophic cells to increase the secretion of two gonadotrophic hormones, Luteinizing hormone (LH), Follicle - stimulating hormone (FSH). These to hormones are transported in the blood from the anterior pituitary gland to the testis. In the testes LH bind to leydig cells which in turn stimulates the secretion of testosterone. With the assistance of FSH and testosterone, stertoli cells are able to produce ABP, Androgen-bind protein maintains high levels of testosterone. ABP binds to testosterone and maintains high levels of that hormone near spermatogenic cells. This with FSH help in the maturation of spermatozoa. In addition to all this, testosterone is converted into DHT, dihydrotestosterone, this hormone may also contribute to the formation of sperm cells. The two androgens testosterone and DHT, help to develop males sexual characteristics and The process described above can be seen in figure
For male cats, they have a penis, prostate, scrotum (with paired testes), which all aid in creating sperm and testosterone. Additionally, the most unique feature they have is that on their penis they have little spins and barbs that hold the penis in during ejaculation.
The prostate gland is the largest accessory sex gland . it is found at the base of the bladder and it encircles the prostatic urethra. This gland secretes prostatic fluid that makes up 30% of the semen into urethra contributing to sperm motility and viability. The prostate is classified as a tubulo- alvelolar gland having two distinctive units the epithelium and stroma. The constituents of the stroma are fibroblast , Smooth muscle cells and collagen. The epithelium is mainly simple columnar secretor. In the stromal compartment there are sparse neuroendocine cells (45). The prostate epithelial cells are either classified as basal or luminal. the basal cells are characterized by set or markers mainly cytokeratin 5, 14 and p63 . However, a different set of markers are expressed by the luminal cells mainly cytokeratin 8,14,18,19 ,(46)
The parts of the female reproductive system work together to produce pin- head size eggs that join with a male's sperm to fertilize one of the eggs. The system nourishes the egg until it forms a full-grown baby. Then, once the baby is born, it produces milk for the baby. The main parts of a female reproductive system are the ovaries, the oviducts (also called the fallopian tubes), uterus (womb), vagina, vulva and the breasts (where the milk for the baby is released). The ovaries are called "egg glands". They store tiny eggs called ova. These will develop into a baby, if a man's sperm fertilizes them. The ovaries also produce hormones. The two oviducts each link the two ovaries with the uterus. They carry the ripe eggs to the uterus. When a male fertilizes a female's egg, it usually occurs in the oviduct. The uterus is where the fertilized egg grows and is nourished until it is ready to come out. At first, the uterus is about the size of a baseball or a tennis ball.
The Reprodructive system or genital system is a system of sex organs within an organism which work together for the purpose of sexual reproductive. A human has 46 chromosomes in each cell except sex cells. A person recieve 23 chromosomes from the mother and 23 chromosomes from the father . The mother has X chromosome and the father has Y chromosome . XY chromosomes are also found in other mammals , some insects and some plants . Now let’s talk about the male reproductive system. The male reproductive system consists two major parts which are testes and penis . The spermatozoa (sperm) includes four main parts of the male body which are the penis , uretha , vas defences , and cowper’s gland . Testes is where the sperm
5) Follicle stimulating hormone (FSH) which is responsible for the stimulation of follicle cells found in the gonads. This encourages either the testes to produce sperm and the ovaries to produce ova.
The male reproductive system is a set of organs that works together to produce sperm which will later in life fertilize females eggs. The testes are the most important part of the system because it produces sperm cells. It is similar and looks similar to ovaries of a female’s reproductive system because it also holds what they need to reproduce. Its job is to produce the sperm cells needed to reproduce. Due to hormonal imbalances the production of sperm cells may not even be possible in some males. Testosterone is the male the hormone that gives men there manly characteristics. It is made up of hydrogen, carbon, and oxygen with a white color. In the male body it helps develop sex organs, a deeper voice, and facial hair (Khalid, 2013). Cancer or a genetic disorder in males is the most common thing that cause the reductions of testosterone production in the body. Behind the testes is the epididymis which lets sperm go through the vas deferens from the testes (Dictionary, 2014). It looks like leach the way it is position right on the testes but it is thinner. When sperm is produces the ...
The female reproductive systems is made of 9 parts. The sex cell for the female reproductive system is called the egg or ovum. The egg spends it’s dormant life in the ovaries until it is released. The egg has 23 chromosomes within it. The ovaries have two goals: to create and house eggs and the release the female sex hormones, estrogen and progesterone. The fallopian tubes are what the egg travels through to reach the uterus. Fallopian tubes contain tiny hair-like structures called cilia; the cilia allows for mobility of the egg. The fallopian tube is roughly the size of 2 hairs, and is the site of where ectopic pregnancies happen. The process of the egg getting released from the ovaries through the fallopian tubes is called ovulation. Ovulation happens on the 14th day of the menstruation cycle The uterus is where the egg goes to after it travels through the fallopian tubes. The developing baby is held and nourished in the uterus. When the uterus is empty, it’s roughly the size of a fist but expands one an embryo starts to develop. The endometrium is the lining of the uterine wall. It’s used to protect the fetus. When the egg isn’t fertilized, menstruation ha...
Children grow in the body through various ways , their inner body systems change , they grow taller , get heavier , and a myriad of other things. The one defining time of growth would again be during adolescence when the sex traits and major height growth takes place. During this time there is a large growth in hair on both although most often it is more prominent on men such as through facial hair and beards but the most significant growth shared by the two would be the growth in height and changes in hormones. The latter is especially important when it comes to sexual changes during these times , women start coming to a point when they menstruate and men get to a point of sexual maturity when they begin to produce sperm. Along with these aforementioned changes in the sexes there are other changes that take place such as the dropping of the testes in males and the growth in the mammary glands in the chest for