Bio 269 Final
Terms
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- Infertility
- Failure to conceive within one year of unprotected intercourse
- what amount of couples will concieve in 3 months
- 50% of couples will conceive within 3 months
- 70 percent of couples will concieve with in {BLANK} months.
- 6 months
- percentage of couples with fertiity problems?
- 10-15%
- Causes of Infertility?
-
Interference with:
*Producing normal sperm or oocytes
*Transporting sperm or oocytes through parts of the reproductive system
*Depositing semen into the vagina
*Fertilization
*Transport or implantation of the pre-embryo - No sperm produced--causes?
-
*Defects in testes
*Undescended testes(cryptorchidism)
*Pituitary fails to stimulate spermatogenesis
*Infection or inflammation destroys seminiferous tubules - Insufficient number of sperm produced--causes
-
*Damage to testes
*Insufficient stimulation by pituitary
*Infection or inflammation of testes
*Stress
*Obesity
*Increased temperature of testes
*Damage to nerve or blood supply to testes
*Some drugs used in treating tumors or infections
*Aging - Abnormal function of epididymis--causes
- *Usually due to hormonal disorders
- Abnormal function of prostate or seminal vesicles--causes
-
*Infection / inflammation
*Damage to their nerves or blood supplies
*Some hormonal disorders
*Tumors
*Some drugs used in treating tumors or infections
*Aging - Blockage of vas deferens, ejaculatory ducts, or urethra--causes
-
*Usually caused by infection / inflammation
*Scarring from trauma
*Birth defects -
Inability to get or keep erection or erection too soft
(erectile dysfunction or impotence)--causes -
*Stress
*Damage to nerves or blood vessels supplying penis
*Damage to erectile bodies
*Various drugs used to treat hypertension, high cholesterol, heart disease, kidney disease, liver disease, and others - Inability to get or keep erection, or erection too soft (erectile dysfunction or impotence)--causes
-
*Stress
*Damage to nerves or blood vessels supplying penis
*Damage to erectile bodies
*Various drugs used to treat hypertension, high cholesterol, heart disease, kidney disease, liver disease, and others - priapism?
- abnormally persistent erections
- Abnormally persistent erections (priaprism)--causes
-
*Damage to nerves or blood vessels
*Trauma to erectile bodies preventing blood from flowing out - Premature ejaculation (before or very early in intercourse)--causes
-
*Psychological stress
*Overstimulation - Insufficient volume of semen--causes
- *Usually secondary to disorders of prostate or seminal vesicles
- Orgasm without ejaculation--causes
-
*Blockage of ejaculatory duct and/or urethra
*Prostate and seminal vesicles unable to form semen - causes for infertility in women?
-
*Defects in ovaries
*Damaged blood supply to ovaries
*Pituitary fails to stimulate oogenesis
*Stress
*Obesity
*Strenuous exercise
*Excessive weight loss
*Some drugs used in treating
*tumors or infections
*Estrogen and/or progesterone
*Aging
*Usually caused by infection / inflammation
*Scarring from trauma or ectopic pregnancies
*Birth defects
*Usually secondary to insufficient estrogen and/or progesterone from ovaries
*Infection or inflammation
*Insufficient estrogen and/or progesterone from ovaries
*Tumors
*Usually associated with hormonal disorders
*Failure of arousal
*Insuffient estrogen and/or progesterone