Fetal Development Parturition

Foetal ejection reflex in human female is induced by:

1.	pressure exerted by aminotic fluid
2.	release of oxytocin from pituitary
3.	fully developed foetus and placenta
4.	differentiation of mammary glands

The signals for parturition originate from:

1. placenta only

2. placenta as well as developed foetus

3. oxytocin released from maternal pituitary

4. fully developed foetus only

The first movements of the foetus and the appearance of hair on its head are usually observed during which month of pregnancy?

1. Fourth month

2. Fifth month

3. Sixth month

4. Third month

Signals for parturition originate from:

1. Both placenta as well as fully developed foetus

2. Oxytocin released from maternal pituitary

3. Placenta only

4. Fully developed foetus only

Which one of the following is not the function of placenta?

1.	Secretes estrogen
2.	Facilitates removal of carbon dioxide and waste material from embryo
3.	Secretes oxytocin during parturition
4.	Facilitates supply of oxygen and nutrients to embryo

In human beings, at the end of 12 weeks (first trimester) of pregnancy, the following is observed:

1.	Eyelids and eyelashes are formed
2.	Most of the major organ systems are formed
3.	The head is covered with fine hair
4.	Movement of the fetus

Which of the following secretes the hormone, relaxin, during the later phase of pregnancy?

1.	Foetus	2.	Uterus
3.	Graafian follicle	4.	Corpus luteum

Which of these is not an important component of initiation of parturition in humans?

1. Release of oxytocin

2. Release of prolactin

3. Increase in estrogen and progesterone ratio

4. Synthesis of prostaglandins

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):

Assertion (A):	Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.
Reason (R):	Colostrum contains several antibodies absolutely essential to develop resistance in the new born baby.

In the light of the above statements, choose the most appropriate answer from the options given below:

1.	Both (A) and (R) are True but (R) is not the correct explanation of (A)
2.	(A) is True but (R) is False.
3.	(A) is False but (R) is True.
4.	Both (A) and (R) are True and (R) is the correct explanation of (A).

Find the correct statements:

A.	In human pregnancy, the major organ systems are formed at the end of 12 weeks.
B.	In human pregnancy, the major organ systems are formed at the end of 8 weeks.
C.	In human pregnancy, the heart is formed after one month of gestation.
D.	In human pregnancy, limbs and digits develop by the end of the second month.
E.	In human pregnancy, the appearance of hair is usually observed in the fifth month.

Choose the correct answer from the options given below:

1.	B, C, D and E only
2.	A, C, D and E Only
3.	A and E Only
4.	B and C Only