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Friendly Bio. Ch 26

Vocabulary Terminology for Chapter 26 in Friendly Biology

Question or TermAnswer or Definition
Sperm are formed in the testis.
Ova are formed in the ovaries.
Sperm & Ova are 1N haploid cells having undergone meiosis.
Testis are located outside the body inside of the scrotum.
Ovaries are located in the pelvis or lower abdomen.
Sperm exits the testis through the epididymis and continues through the vas deferens to the urethra.
Accessory sex glands (seminal vesicles, Cowpers gland & prostate gland) provide nutrients, pH adjusting substances to the sperm to create semen.
The penis allows the man to deposit semen into the woman's vagina.
The cervix functions as a door to open at certain times in response to estrogen hormones to allow sperm to enter or be closed during pregnancy.
Ovulation is the release of the ovum.
The Ovum is gathered by the infundibulum and moved down the fallopian tube where fertilization occurs.
The Embryo moves down to the uterus to implant and continue development
The placenta is used to moves nutrients and waste along with oxygen and Carbon dioxide across cell membranes between Mother and developing baby so that there is no direct blood exchange.
Pregnancy in humans takes 9 months.
Oxytocin comes from the posterior pituitary gland and stimulates the uterus to begin contractions while decreasing progesterone levels which allows the cervix to dilate.
Cesarean section is performed to surgically remove the baby from the uterus should the baby be to large to deliver or if there are other complications.
Created by: CDM2KK
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