The correct sequence of mammalian mammary gland ducts beginning from alveoli would he:
1. Mammary tubules $\to$Mammary ducts $\to$ Mammary ampulla$\to$ Lactiferous ducts
2 Lactiferous duds $\to$ Mammary ducts$\to$ Mammary ampulla $\to$Mammary tubules
3 Lactiferous ducts$\to$ Mammary arnpula$\to$ Mammary ducts$\to$ Mammary tubules
4 Mammary tubules $\to$Mammary ampulla$\to$ Mammary ducts$\to$ Lactiferous ducts

The spermatids are transformed into spermatozoa by the process called:

1. Spermiation

2. Spermatocytogenesis

3. Spermiogenesis

4. Spermatolysis

The final release of sperms from the seminiferous tubules is called:

1. Spermiation

2. Emission

3. Retrograde ejaculation

4. Ejaculation

What causes the onset the puberty in males?

1. Increase in secretion of testosterone by testis

2. Decrease in secretion of testosterone by testis

3. Increase in secretion of GnRH by hypothalamus

4. Decrease in secretion of GnRH by hypothalamus

FSH:

1. Acts on Sertoli cells and stimulates secretion of some factors that help in spermiogenesis

2. Acts on Sertoli cells and inhibits secretion of some factors that help in spermiogenesis

3. Acts on Leydig cells and stimulates secretion of some factors that help in spermiogenesis

4. Acts on Leydig cells and inhibits secretion of some factors that help in spermiogenesis

For normal fertility what percent of the sperm in ejaculate must exhibit vigorous motility ?

(1) 20

(2) 30

(3) 40

(4) 60

The function of male sex accessory ducts and glands are maintained by:

1. Hypothalamic releasing hormone

2. Pitutary gonadotropins

3. Adrenal cortex steroids

4. Testicular androgens

The division of primary oocyte results in:

1. unequal cells a smaller haploid secondary oocyte and a larger diploid polar body

2. unequal cells a larger haploid secondary oocyte and a smaller haploid polar body

3. unequal cells a smaller diploid secondary oocyte and a larger haploid polar body

4. equal cells - a haploid secondary oocyte and a haploid polar body

The correct sequence of the various phases of a typical menstrual cycle is:

(1) Menstrual $\stackrel{ }{\to }$ Follicular $\stackrel{ }{\to }$ secretory $\stackrel{ }{\to }$ Ovulatory

(2) Menstrual $\stackrel{ }{\to }$ Follicular $\stackrel{ }{\to }$ Ovulatory $\stackrel{ }{\to }$ secretory

(3) Ovulatory $\stackrel{ }{\to }$ Follicular $\stackrel{ }{\to }$ secretory $\stackrel{ }{\to }$ Menstrual

(4) Menstrual $\stackrel{ }{\to }$ secretory $\stackrel{ }{\to }$ Follicular $\stackrel{ }{\to }$ Ovulatory

LH surge: