3.6.4 + 5 Embryo Development & Menstrual Cycle FMQuiz Homework Solution
Q. Where is FSH produced?
A. Pituitary
Q. What is the role of progesterone in the
menstrual cycle?
A. Maintenance of endometrium; Inhibits FSH;
Inhibits LH
Q. What is the role of oestrogen in the menstrual
cycle?
A. Repairs endometrium; Inhibits FSH; Stimulates
LH
Q. By which type of cell division does the zygote
divide?
A. Mitosis
Q. Explain what is meant by germ layers?
A. Layer of cells in the blastula (embryo); Give rise
to specific tissues or organs
Q. Which part of the female reproductive system is
influenced by both FSH and LH?
A. Ovary; Follicle
Q. What is the morula?
A. Solid ball of cells
Q. What is the next developmental stage after the
morula?
A. Blastocyst
Q. What is meant by the term infertility?
A. Inability to produce offspring
Q. Name a tissue that the mesoderm gives rise to.
A. Muscles; Skeleton; Excretory system;
Respiratory system; Circulatory system
Q. Name a tissue that the ectoderm gives rise to.
A. Skin; Nails; Hair; Nervous system
Q. Explain the term implantation.
A. Embedding of embryo in endometrium
Q. What is a placenta?
A. Structure attached to inner surface of the womb
of pregnant mammals, helps to nourish the foetus,
and discharges its waste
Q. What is meant by in-vitro fertilisation?
A. Sperm and egg fuse outside the body
Q. What is the role of the amnion?
A. Holds; Produces fluid; Protects embryo or foetus
Q. From what tissues does a placenta form?
A. Uterine and embryonic tissue
Q. What is meant by fertilization?
A. Fusion of gametes; Formation of zygote
Q. Describe the amnion.
A. Sac; Membrane
Q. What is the blastocyst?
A. Fluid-filled or hollow ball of cells
Q. In which part of the human female reproductive
system does fertilization occur?
A. Fallopian tube; Oviduct
Q. Name a tissue that the endoderm gives rise to.
A. Inner lining of gut or named part of; Liver;
Pancreas
Q. What is meant by the fertile period?
A. Time when fertilisation is possible; When egg is
in oviduct
Q. Explain the importance of the amnion for the
foetus.
A. Contains amniotic fluid; Protects embryo
Q. Give one function of FSH.
A. Production of follicle (egg); Stimulate oestrogen
production
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