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Friendly Bio. Ch 26
Vocabulary Terminology for Chapter 26 in Friendly Biology
Question or Term | Answer 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. |