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Question
Complete the following sentences with appropriate word:
The period of complete development of the fetus until birth is termed ______.
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Solution
The period of complete development of the fetus until birth is termed Gestation.
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RELATED QUESTIONS
Choose the odd one in each of the following :
Relaxin; cervix dilated; amniotic sac ruptures; child birth; follicle.
Given below is the name of certain stage/substance related to reproduction and found in human body. Answer the questions related to it.
Placenta
- What are the two sources that form placenta?
- Name any two main substances which pass from foetus to mother through placenta.
- Name any two hormones it produces.
Differentiate between:
Amnion and allantois
Describe the functions of Amnion
Describe the functions of placenta
Correct and rewrite the statements by changing the biological term that is underlined for the statement:
The protective sac which develops around the developing embryo is called the Pericardium.
The circulatory system of the fetus and that of the mother are never connected directly. What are the advantages?
Complete the following sentences with appropriate word:
The placenta is ________permeable
Match the respiratory surfaces to the organisms in which they are found.
| Organ/ cells | Hormones | ||
| (i) | Corpus luteum | (a) | HCG |
| (ii) | Leydig's cells | (b) | Estrogen |
| (iii) | Placenta | (c) | Progesterone |
| (iv) | Graafian follicle | (d) | Testosterone |
Heart and blood vessels have been formed by the end of five weeks of pregnancy.
