Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 39, Problem 5TY
Summary Introduction
Introduction:
The reproductive cell of the male is calledsperm. It is derived from the Greek word ‘Sperma’ which means ‘seed’. The reproductive system of the male is specially designed for the production, storage, and transport of sperms. During spermatogenesis, sperms are produced.
A uniflagellar (single flagella) sperm is referred to as a spermatozoon for motile sperm cells and spermatium for non-motile sperm cells. The human sperm cell is haploid. The main function of the sperm is to fertilize the female’s egg to produce a new life form (or organism).
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Identify the organ responsible for the following functions.
1.) Where sperms are produced.
2.) Where sperms are temporarily stored.
3.) Supports the testis and epididymis
4.) Where the sperm passes through from the testis before it joins the urethra.
5.) Passageway of both sperm and urine.
6.) Secretes fluid that forms part of the semen; gives the semen its alkaline characteristics to counteract the acidity og the vaginal tract; Contains sugars like fructose
7.) Secretes fluid that also provides alkalinity to the semen; Contains proteilytic enzymes, citric acid, phosphates, and lipids.
8.) Paired goands that produce clear, viscous secretion (pre-ejaculate) that helps to lunricate the urethra for sperm to pass through, neutralizing traces of acidic urine in the urethra, and helps flush out any residual urine or foreign matter.
Fill in the table using the choices in the list below.
Accessory glands | B. Epididymis |C. Vas deferens (sperm duct) | D. Penis |E. Seminiferous tubules |F. Urethra
_________ 1. Organ that delivers semen to the female reproductive tract
_________ 2. Where sperm are produced
_________ 3. The tube that carries sperm from the epididymis to the urethra.
_________ 4. The tube that carries both sperm and urine down the penis.
_________ 5. Organs that contribute 90% of the semen.
_________ 6. Tubules where sperm are stored.
Differentiate histologically the female reproductive organs of the various species:
ORGAN
Bitch
Mare
Cow
Sow
Ovary
Uterine tube
Cervix
Vagina
Uterus
Chapter 39 Solutions
Principles of Biology
Ch. 39.1 - Choose the correct statement. The majority of...Ch. 39.2 - In _________ gametes are released in large numbers...Ch. 39.2 - In which way is gametogenesis similar in males and...Ch. 39.3 - Prob. 1CCCh. 39.3 - Prob. 1TYKCh. 39.3 - Prob. 2TYKCh. 39.4 - Prob. 1BCCh. 39.4 - Prob. 2BCCh. 39.4 - Prob. 1CCCh. 39.4 - Prob. 1TYK
Ch. 39.4 - Prob. 2TYKCh. 39.5 - The three germ layers of triploblasts are...Ch. 39.5 - Choose the correct sequence of events. cleavage...Ch. 39.6 - Under what condition(s) might you expect temporary...Ch. 39.6 - Prob. 2TYKCh. 39 - Prob. 1TYCh. 39 - Prob. 2TYCh. 39 - Spermatogonia are haploid germ cells. d. have...Ch. 39 - Prob. 4TYCh. 39 - Prob. 5TYCh. 39 - Prob. 6TYCh. 39 - A major function of FSH is to stimulate the...Ch. 39 - Prob. 8TYCh. 39 - Prob. 9TYCh. 39 - Cells of the neural crest give rise to the central...Ch. 39 - Prob. 1CCQCh. 39 - Prob. 2CCQCh. 39 - Prob. 3CCQCh. 39 - Describe the major events in animal development...Ch. 39 - Describe the events of the ovarian and uterine...
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- Which of the following statements correctly describes the development of the endometrium during the menstrual cycle? Select one: A. Estrogen causes accelerated development of the endometrium during the follicle stage and then maintains the thickness of the endometrium during the luteal stage. B. Progesterone causes the relatively slow development of the endometrium during the follicle stage and accelerates the thickening of the endometrium during the luteal stage. C. Estrogen causes the relatively fast thickening of the endometrium during the follicular stage. Progesterone maintains the thickness of the endometrium during the luteal phase. D. Estrogen causes the relatively slow development of the endometrium during the follicular stage. Progesterone causes accelerated thickening of the endometrium during the luteal phase.arrow_forwardLabel the parts of the male reproductive system in the following illustration.arrow_forwardWhich sequence shows the correct stages of spermatogenesis? Group of answer choices spermatogonium, primary spermatocyte, secondary spermatocyte, spermatid, sperm spermatogonium, spermatid, primary spermatocyte, secondary spermatocyte, sperm sperm, spermatid, secondary spermatocyte, primary spermatocyte, spermatogonium sperm, spermatid, primary spermatocyte, secondary spermatocyte, spermatogoniumarrow_forward
- Where in the human assigned female reproductive tract does fertilization of the egg take place? Ovary Oviduct Uterus Vaginaarrow_forwardWhich of the following rows correctly matches the human reproductive structure with its function? a. Male Reproductive System Female Reproductive System Structure Function Structure Function Testes Site of testosterone production Cervix Opening to the site of implantation b. Male Reproductive System Female Reproductive System Structure Function Structure Function Vas deferens Carries sperm from testes Fallopian Tubes Site of implantation c. Male Reproductive System Female Reproductive System Structure Function Structure Function Epididymis Site of sperm production Ovaries Site of fertilization d. Male Reproductive System Female Reproductive System Structure Function Structure Function Ureter Carries urine and sperm Urethra Carries urinearrow_forwardWhich of the following processes takes place simultaneously during the menstrual cycle? Early follicular development and uterine lining High LH levels and ovulation Maximum LH release and menstruation (bleeding) Reconstruction of the corpus luteum and increased progesterone release from the ovaries Ovulation and menstruationarrow_forward
- Identify the structures below: Choose from: Pharynx / seminal receptacles / setae / crop / nerve cord / aortic arches / intestine / clitellum / seminal vesicles / gizzardarrow_forwardAlthough the most effective form of an oral contraceptive for woman contain estrogen and progestin, some birth control pills contain a small dose of progestin-only. This is because there are many risks and side effects. Which of the following statements is NOT a reason for using a progestin-only oral contraceptive? Select one: A. progesterone maintains the corpus luteum as corpus luteum release a large amount of progesterone and estrogen. B. progesterone suppresses the maturation of follicles, thereby preventing ovulation of a mature ovum. C. progestin-only oral contraceptives prevent the production of FSH and LH in the anterior pituitary. D. progesterone suppresses the production of GnRH in the hypothalamus.arrow_forwardCompare and contrast the Spermatogenesis and structure of the testes of: Rat (Vertebrates) Starfish (Invertebrates) Grasshopper (Insects) Frogs (Amphibians)arrow_forward
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