FAD 4451 Exam 2- Chapter 4 Questions and
Correct Answers
fertilization Ans: — union of sperm and egg
spermatogenesis Ans: — 70 day maturation process
phase 1: meiosis reduces chromosomes to 23
phase 2: develop tadpole like anatomy
epididymis Ans: — mature sperm move to the _____ for storage,
where they become capable of fertilization
24 Ans: — once freed from the ovary, the ovum can survive for
_____ hours
male pronucleus Ans: — the sperm nucleus after it has entered the
ovum at fertilization but before fusion with the female pronucleus
loses tail and nucleus enlarges
female pronucleus Ans: — nuclear material remaining in ovum
after oocyte activation
implantation Ans: — day 6
embryo is a large ball of a couple hundred cells, burrows into
uterine lining and makes contact w nutrient filled glans
chorionic villi Ans: — -microscopic fingerlike projections that
penetrate the endometrium
-develop into the placenta & support maternal-fetal gas exchange
human chorionic gonadotropin hormone Ans: — A hormone that
sends signals to the corpus luteum that pregnancy has initiated
stimulates ovaries to increase progesterone production, preventing
a period
infertility Ans: — unable to become pregnant after a year of trying
© 2025 All rights reserved