MBG 1000 Chapter Notes - Chapter 3: Oocyte, Seminiferous Tubule, Seminal Vesicle

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limecicada923

17 Apr 2016

School

University of Guelph

Department

Molecular Biology and Genetics

Course

MBG 1000

Professor

Christine Schisler

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Document Summary

Sperm develop in the seminiferous tubules, mature and collect in each epididymis, enter the ducts deferential, and move through the urethra in the penis. The prostate gland adds an alkaline fluid, seminal vesicles add fructose and prostaglandins and bulbourethral glands secrete mucus to form seminal fluid. Each month, an ovary releases an oocyte, which enters a uterine tube leading to the uterus. If the oocyte is fertilized, it begins rapid cell division and nestles into the uterine lining to divide and develop. The male and female reproductive systems include paired gonads and networks of tubes in which sperm and oocytes are made. Male gametes originate in seminiferous tubules within the testes, then pass through the epididymis and ductus deferentia, where they mature before exiting the body through the urethra during sexual intercourse. The prostate gland, the seminal vesicles and the bulbourethral glands add secretions. Each month after puberty, one ovary releases an oocyte into a uterine tube.

Related Questions

Lab 11 â Urinary and Reproductive Systems

Prelab. Define all of the following terms/structures.

Lab. Be able to ID these terms/structures on pictures/models AND generally define them along with function!

**DONâT NEED TO NOW ON MODELS

Urinary system:

Kidneys

Hilum

Renal cortex

Renal medulla

Ureters

Urinary bladder

Urethra

Adrenal gland

Reproductive system:

Gametes**

Gonads

External genitalia

Male anatomy:

Testes

Seminiferous tubules**

Epididymis

Ductus deferens (vas deferens)

Spermatic cord**

Inguinal canal**

Ejaculatory duct

Urethra

Accessory glands

Seminal glands (seminal vesicles)

Prostate gland

Bulbo-urethral gland

Female anatomy:

Ovaries

Uterine tube (Fallopian tube, oviduct)

Infundibulum

Fimbriae

Uterus

Cervix

Endometrium

Myometrium

Perimetrium

Vulva

Labia minora

Clitoris

Mons pubis

Labia majora

pinkwhale636

Suppose the (1) ____ oocyte is on its way down an oviduct when a female and male are engaged in sexual intercourse, or (2) _____. The male sex act requires (3) _____________ and ejaculation. During coitus, pelvic thrusts stimulate the penis, the femaleâs (4) ____________, and the vaginal wall. The mechanical stimulation induces involuntary contractions in the male reproductive tract. It forces sperm from the (5) _____ and contents of seminal vesicles and the (6) ________ gland into the urethra. The substances mix and form (7) _____, which is ejaculated into the vagina. During male (8) ________, the end of the sex act, strong sensations of physical release, warmth, and relaxation dominate. Similar sensations typify female orgasm. Following sexual intercourse, (9) _____ are in the vagina. Fertilization most often takes place in the upper portion of the (10) _____. When living sperm contact an oocyte, they release (11) ______ that clear a path through the zona pellucida. Usually only one sperm fuses with the secondary oocyte; only its nucleus and centrioles do not degenerate in the oocyteâs cytoplasm. Sperm penetration induces the secondary oocyte and the first polar body to finish meiosis (12) _______. There are now three polar bodies and a mature egg, or (13) ______. As the sperm and egg nuclei fuse, their chromosomes restore the (14) ____ number for a brand new zygote. A. Orgasm H. Epididymis B. II I. Semen C. Clitoris J. Sperm D. Enzymes K. Erection E. Diploid L. Prostate F. Oviduct M. Ovum G. Secondary N. Coitus

blushwolf331

CHOOSE ALL THAT APPLY!!! Review your Lecture note packet on the Male Reproductive Anatomy. Read the following statements - and select all statements that are FALSE (hint: there are 4 FALSE answers in this question!)

		Testes - The 2 major functions of the testes are the produce spermatozoa and produce androgen hormones (testosterone)
		Testes - The nurse cells or sustentacular cells produce testosterone
		Epididymis - The epididymis has 3 regions - a head, body and a tail.
		Ductus (vas) Deferens - The extended portion of the ductus (vas) deferens as it nears the prostate gland is called the spermatic cord.
		Ejaculatory Duct - the ejaculatory duct passes through the prostate gland.
		Male Reproductive Glands - The prostate gland produces the majority of the volume of semen fluid.
		Male Reproductive Glands - The seminal vesicle produces fluids that help nourish the sperm, stimulates smooth muscle contraction and forms a temporary clost in the female's vagina.
		Male Reproductive Glands - The bulbourethral glands secrete a thick, alkaline mucus that helps neutralize any urinary acids that may harm the spermatozoa.
		Spermatozoa - The middle piece of the spermatozoa contains mitochondria and geneteic material in it.
		Spermatozoa - The head of the spermatozoa contains an acrosomal cap that contains enzymes that help during fertilization.

MBG 1000 Chapter Notes - Chapter 3: Oocyte, Seminiferous Tubule, Seminal Vesicle

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