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Biology 12 Chapter 21
Development and Aging - 18
1.
Oxytocin causes contraction of smooth muscles of…………..?
a) Endometrium
b) Perimetrium
c) None of them
d) Myometrium
2.
Which hormones are powerful uterine muscle stimulants?
a) Prostaglandins and oxytocin
b) Corticosteroids and ACTH
c) Estrogen and progesterone
d) Progesterone and oxytocin
3.
Which hormone increase the power of contractions of uterus?
a) Prostaglandins
b) ACTH
c) Progesterone
d) Corticosteroids
4.
Which gives positive feedback for the release of oxytocin?
a) Progesterone
b) Estrogen
c) Corticosteroids
d) Prostaglandins
5.
Process of labour is divided into…………. Stages?
a) 3
b) 2
c) 4
d) 5
6.
Which stage of labour is divided into two phases?
a) 1st
b) 2nd
c) 4th
d) 3rd
7.
Clamping and cutting of umbilical cord is painless due to lack of any……………?
a) Lymph
b) Vein
c) Nerve
d) Artery
8.
What is called after birth?
a) Expulsion of baby
b) Expulsion of umbilical cord
c) Expulsion of placenta
d) Expulsion of blood
9.
The gestational age of less than…….....refers to preterm birth?
a) 47 weeks
b) 37 weeks
c) 27 weeks
d) 17 weeks
10.
What are the factors for premature birth?
a) All of them
b) Smoking
c) Diabetes
d) High blood pressure
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