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Reproduction Notes.

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Presentation on theme: "Reproduction Notes."— Presentation transcript:

1 Reproduction Notes

2 Male Reproductive Organs
Urinary bladder – Holds Urine Seminal Vesicles - Provides nourishment and mobility for the sperm Vas Deferens – Connects epididymis with the Urethra. Lined with cilia, sperm has little ability to move on own. Prostate Gland – Fluid released for protection. Protects from the acidity of the female vagina. Cowpers Gland – Clear, Pre-ejaculatory fluid. Cleans urine out of the urethra to allow safe passage of semen. Can contain sperm. Urethra – Passage way for urine and sperm.

3 Penis – male reproductive organ
Epididymis – coiled tubes behind the testes. Store sperm while they mature, 64 days. Can survive in the female vagina/urethra for 72 hours. Testes – Male sex gland. Produces sperm (23 chromosomes), Testosterone. Sperm made per day between 200 million and as much as 600 million per day. Sperm released at ejaculation - about million. ** ejaculation comes out at the speed of 28 mph Scrotum – Protective sac. Maintains proper body temperature for sperm production. Must be 2 degrees above or below 98.6.

4 Female Reproductive System
Fallopian tubes – Location of fertilization Fimbrae – Small “fingers” that sweep the egg into the fallopian tubes. Ovary – Female sex gland. Produces estrogen, progesterone, contains the ovum(egg cell). Contain thousand eggs at birth. Hang in fallopian tubes for about 2 days. . Uterus – womb. Fertilized embryo embeds itself into the walls of this. Sperm may live here for about 3-4 days. About the size of your fist. Bladder – Holds urine.

5 Cervix – end of the uterus, entrance way into the uterus
Cervix – end of the uterus, entrance way into the uterus. Very small about the size of a dime, complete dilation = 10cm/4 inches. Will stretch to over 10inches. Vagina – Female organ of intercourse and birth canal Urethra – passage way for urine. Labia minora – inner folds of skin protecting the vagina Labia majora – outer folds of skin protecting the vagina. Location of pubic hair. Clitoris – No reproductive purpose. Full of nerve endings, only function is arousal.

6 Menstrual Cycle Lasts about 28 days Days 1-5 - Menstruation occurs, consists of about 2 ounces of blood. This wall of the uterus that has sloughed off. Days 6-12 - The uterine lining begins to thicken. Preparing for ovulation and the possibility of a fertilized egg. Days 13-14 - Ovulation occurs. An ovum is released into fallopian tubes.

7 Days 15-20 - best possibility of fertilization (days 14-21). - Corpus Luteum – produces progesterone in preparation for pregnancy. Temporary gland that is formed when the remains of the bursts follicle close. Days 21-28 - The corpus luteum disintegrates if no fertilization = no progesterone. The cells in the lining of the uterus die without progesterone. The unfertilized egg disintegrates and the menstrual cycle begins again with menstruation.


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