Preview

The Reproductive System Outline

Better Essays
Open Document
Open Document
2330 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
The Reproductive System Outline
Chapter 16 outline * The Reproductive system
The gonads or primary sex organs: testes in men, and ovaries in women. a. Produce sex cells or gametes, and secrete sex hormones
Male and female reproductive systems are different.
Sex hormones play vital roles both in the development and function of the reproductive organs.
Anatomy of the male reproductive system A. Testes
Plum-sized and approx. 4cm long and 2.5cm wide
Fibrous connective tissue capsules, te tunica albuginea surrounds each testis.
Each lobule contains one to four tightly coiled seminiferous tubules. a. The seminiferous tubules of each lobe empty sperm into another set of tubules, the rete testis, located at one side of the testis.
Sperm travel through the rete testis to enter the first part of the duct system, the epididymis, which hugs the external surface of the testis.
The interstitial cells produce androgens-the most important of which testosterone.
Thus sperm-producing and hormone producing functions of the testes are carried out by completely different cell populations. B. Duct System a. Epididymis 1. The cup shaped epididymis is a highly coiled tube about 6m long that caps the superior part of the testis and then runs down its posterolateral side. 2. It’s the first part of the male duct system and provides a temporary home for immature sperm. 3. The sperm travel this long tube that takes about 20 days to mature, gaining the ablility to swim. 4. When the male is sexually stimulated, he ejaculates, the walls of the epididymis contract to expel the sperm into the next part of the duct system, the ductus deferens. b. Ductus Deferens 1. This is also often referred to as the vas deferens. 2. It runs upward from the epididymis through the inguinal canal to the pelvic cavity and arches over the superior aspect of the urinary bladder. It then loops medially over the ureter and descends along the posterior bladder wall. 3. This

You May Also Find These Documents Helpful

  • Good Essays

    D. What is the function of the urethra? How does its structure support this function?…

    • 1088 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Bcmb 230

    • 6287 Words
    • 26 Pages

    a. collecting duct b. distal convoluted tubule c. descending loop of Henle d. capsular space…

    • 6287 Words
    • 26 Pages
    Good Essays
  • Good Essays

    acetanilide lab

    • 425 Words
    • 2 Pages

    A: Myenteric plexus Q: Secretin is secreted by which of the ff structures? A: Small intestine Q: chime leaves the stomach into the duodenum thorugh? A: pylorus Q: The structure formed when the straight tubules interconnect? A: rete testis Q: Which structure produces most of the seminal fluid?…

    • 425 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Gonads- primary reproductive organs. The female gonads are the ovaries; the male gonads are the testes. The primary responsibility of the gonads is secretion of hormones and…

    • 679 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    h. What organs are housed in the pelvic cavity? Urinary bladder, some reproductive organs, and the rectum…

    • 1169 Words
    • 5 Pages
    Satisfactory Essays
  • Good Essays

    Exercise 43

    • 750 Words
    • 3 Pages

    8) Draw a sperm, label: acrosome, head, mid piece and tail. Beside each label, note the composition, and function of each sperm structures.…

    • 750 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Chapter 46-47

    • 946 Words
    • 4 Pages

    What effect would surgical removal of the seminal vesicles have on the human male reproductive system? a. It would cause sterility because sperm would not be produced. b. It would cause sterility because sperm would not be able to exit the body. c. The failure rate for the withdrawal method of birth control would go down. d. There would be a minimal loss in semen volume. e. Semen would not contain energy-providing nutrients for the sperm. 9. In humans, the egg is released from the ovary and enters the oviduct. How is this accomplished? a. The force of the follicular ejection propels the egg into the oviduct. b. The egg is drawn into the oviduct by the action of beating cilia located in the opening of the oviduct. c. The egg moves through a small tube that connects the ovary and the oviduct. d. The egg propels itself into the oviduct by the beating action of its flagellum. e. Peristalsis of ovarian muscles moves the egg into the oviduct. 10. What is the narrow opening of the human uterus called? a. vagina b. cervix c. oviduct d. fallopian tube e. vas deferens 11. Which cells are diploid? a. spermatids b. spermatogonia c. mature sperm cells d. A and B only e. A, B, and C 12. Which of these best describes the menstrual cycle? a. It refers specifically to changes that occur in the endometrium of the uterus. b. The cycle length is 28 days and varies little from one woman to another. c. It continues from puberty until death. d. It begins with the follicular phase. e. It is primarily regulated by follicle-stimulating hormone (FSH). 13. What are the three phases of the ovarian cycle? a. menstrual, ovulation, and luteal b. follicular, luteal, and secretory c. menstrual, proliferative, and secretory d. follicular, ovulation, and luteal e. proliferative, luteal, and ovulation 14. Inhibition of the release of GnRH from the hypothalamus will a. stimulate production of estrogen and progesterone. b. initiate ovulation. c. inhibit secretion of gonadotropins from the pituitary.…

    • 946 Words
    • 4 Pages
    Powerful Essays
  • Satisfactory Essays

    Chapter 28 quiz

    • 524 Words
    • 3 Pages

    Sperm move to the uterine tube through uterine contractions and the energy of their own flagella. What other factor is involved in sperm movement?…

    • 524 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Study Guyide

    • 4145 Words
    • 17 Pages

    B) Contrary to the theory of pangenesis, somatic cells do not influence eggs or sperm.…

    • 4145 Words
    • 17 Pages
    Satisfactory Essays
  • Better Essays

    chapter 4

    • 2050 Words
    • 9 Pages

    9) Which of the following glands might utilize the secretory mechanism and duct structure shown in A?…

    • 2050 Words
    • 9 Pages
    Better Essays
  • Good Essays

    Ap Biology Study Guide

    • 1792 Words
    • 8 Pages

    16 31 The diagram shows a sperm cell. Which part contains genes? A B C…

    • 1792 Words
    • 8 Pages
    Good Essays
  • Good Essays

    In the male, meiosis precedes sex cell differentiation. A single spermatogonium enters the first meiotic division as a primary spermatocyte. This division produces two secondary spermatocytes, each of which divides to form two haploid spermatids. Each spermatid then differentiates (by a process called spermiogenesis) into a spermatozoon by the elaboration of structural and functional specialisations that enable the sperm to fertilize the egg. Consequently, four haploid sperm result from each diploid spermatogonium. Sperm produced in the testicles are immature and not very motile. As the sperm make their journey through the tightly coiled epididymis, they mature and become motile.…

    • 639 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Functionalism is a macro theory, which is based on society as a whole, rather than just that of the individual. It is argued that functionalism generates many things for society. Religion, from a functionalist point of view, socialises people, teaching them norms and values of society, which are the basis for social unity. Religion further is a structure within functionalism which aids in influencing individuals lives. Functionalism claims that social solidarity, the uniting of people in society is an important part of maintaining social order, which is a functional pre-requisite for society to survive. In addition, Functionalists use the term, ‘Organic Analogy’, which is the comparison between society and the human body. The idea that like organs is a necessary condition in a human body, ensuring it functions correctly, society has different institutions, like religion which join up with others to enable society to work well, maintaining mutual agreement in society.…

    • 2524 Words
    • 11 Pages
    Powerful Essays
  • Powerful Essays

    The aim of the female reproductive system is to produce mature oocytes which match with the male spermatocyte to create offspring. Fertilisation most commonly occurs in the fallopian tubes, though this can also occur later in a female’s menstrual cycle if the egg has already moved down into the uterus, though there is a higher chance of miscarriage as the lining of the womb may continue to shed. The external female reproduction features have two functions; to allow insemination and to also protect against infection and injury. These structures include; the labia majora, which contains glands that produce sweat, the labia minora which surrounds the opening of the vagina and urethra, bartholin's glands which are just behind the vaginal…

    • 2545 Words
    • 11 Pages
    Powerful Essays
  • Powerful Essays

    For the male reproductive system there are two major parts: testes, where the sperm is produced and the penis. In males the penis and urethra belong to both the urinary system and reproductive system. The testes are carried in an external pouch that is more commonly known as the scrotum. They actually remain at a slightly cooler temperature than normal body temperature so that they are able to facilitate sperm production. 1…

    • 2481 Words
    • 10 Pages
    Powerful Essays

Related Topics