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Question
Describe briefly the ways how a mammalian embryo is respires
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Solution
The mammalian embryo respires by the diffusion of oxygen through the placenta to enter the bloodstream of the embryo. The waste carbon dioxide passes through the umbilical cord and leaves through the placenta.
RELATED QUESTIONS
Give an appropriate biological or technical term for the following:
The fluid which surrounds the foetus.
The circulatory system of the fetus and that of the mother are never connected directly. What are the advantages?
Differentiate
Uterus and Urethra.
Name the Following
A hollow pear-shaped muscular organ that holds, nourishes and protects the fetus.
Give Technical Term:
Name a membrane that surrounds the fetus and secretes a protective fluid.
Complete the following sentences with appropriate word:
The period of complete development of the fetus until birth is termed ______.
All are functions of placenta, EXCEPT ______.
Which characteristic describes the direction of blood flow through the umbilical arteries?
The average gestation period from conception to parturition is approximately how many days?
The placenta is described as a temporary structural and functional connection between which two circulations?
