Which the following male and female structures are
least alike in function?
1. Vas deferens — oviduct.
2. Intestritial cells — Follicle cells.
3. Spermatogonia — oogonia.
4. Seminiferous tubule — vagina.
During coitus the human male ejaculates about
1. 200 to 400 million sperms
2. 100 to 200 million sperms
3. 200 to 300 sperms
4. 200 to 300 billion sperms
The main cause of the disintegration of the endometrial lining
1. LH surge
2. Degeneration of corpus luteum
3. Ovulation during mid-cycle
4. Implantation leads to pregnancy
The wider part of the fallopian tube is
1. Infundibulum
2. Isthmus
3. Ampulla
4. Cervix
Morula stage is related to:
1. 8 -16 celled
2. After the fertilization stage
3. Before the blastocyst stage
4. All of these
Fertilization membrane is formed to
1. Faciliate entry of sperm into egg.
2. Provide stability to egg.
3. Prevent ectopic pregnancy.
4. Prevent polyspermy
Seminal plasma of humans is rich in
1. Fructose and certain enzymes, poor in Ca2+.
2. Fructose, Ca2+ and certain enzymes.
3. Fructose, Ca2+ but no enzymes.
4. Glucose, certain enzymes but no Ca2+
Which of the following is very close to the time of
ovulation?
1. Peak of progesterone.
2. Minimum level of estrogen.
3. Peak of LH and FSH.
4. Thickest layer of endometrium.
Find the incorrect statement
1. scrotum helps in maintaining low temperature of the testes 2-2.5 less than normal, necessary for spermatogenesis
2. Each testis has about 250 testicular lobules
3. Transfer of sperms into female genital tract is insemination
4. Seminiferous tubules open into rete testis through vasa efferentia
Oogenesis differs from spermatogenesis in a number of aspects. One of the following is however a similarity between the two
1. Growth phase is prolonged in both of them an starts before birth
2. Both give rise to non-motile gametes
3. Both produce equal number of gametes
4. Both occur inside primary sex organ