General information:

Question 1

What is the response of the live spermatozoa in the hypo-osmotic swelling test

1. Shrinkage of the head
2. Shrinkage of the tail
3. Swelling of the head
4. Swelling of the tail

Answer 1

4. Swelling of the tail

Question 2

The high magnification is used to evaluate the:

1. Mass movement of the spermatozoa
2. Progressive movement of the spermatozoa
3. Individual movement of the spermatozoa
4. Ratio of local motile spermatozoa

Answer 2

3. Individual movement of the spermatozoa

Question 3

What is indicated by the less opaque appearance of the collected semen

1. Low conc of the semen/ spermatozoa
2. Low motility of the spermatozoa
3. Low viability of spermatozoa
4. High number of spermatozoa with abnormal morphology

Answer 3

1. Low conc of the semen/ spermatozoa

Question 4

What does the analytical sensitivity show

1. Precision of the assay
2. Mean of the random errors
3. Reproducibility of the assay
4. Minimal detectable conc

Answer 4

4. Minimal detectable conc

Question 5

What kind of change happen during slow cooling of native cells:

1. Due to influx of water the cell volume incr
2. Decr of intracellular osmotic pressure
3. Formation of extracellular ice crystals
4. Due to water efflux the cell volume decr are the intracellular osmotic pressure incr

Answer 5

4. Due to water efflux the cell volume decr are the intracellular osmotic pressure incr?

Question 6

What is the temperature of liquid nitrogen?

1. -196°c
2. -60°c
3. -280°c
4. -20°c

Answer 6

1. -196°c

Question 7

What is the tight junction:

1. Blood- testis barrier to protect the developing spermatozoa
2. Connection between testis and epididymis
3. Connection between epididymis and ductus deferens
4. Attachment point of the tail of the spermatozoa

Answer 7

1. Blood- testis barrier to protect the developing spermatozoa

Question 8

Which cell produces the testosterone

1. Sertoli-cell
2. Leydig-cell
3. Granulosa-cell
4. Interstitial-cell

Answer 8

2. Leydig-cell

Question 9

What does flushing mean:

1. Incr vitamin intake
2. Incr protein intake
3. Incr energy and protein intake
4. Incr Ca intake

Answer 9

3. Incr energy and protein intake?

Question 10

What does necrozoospermia mean:

1. All spermatozoa are dead
2. 50% of the spermatozoa are dead
3. Low motility
4. High number of spermatozoa with abnormal morphology

Answer 10

1. All spermatozoa are dead

Question 11

Which method we can NOT use for artificial insemination if we use frozen semen?

a: Endoscopic method
b: Scandinavian method
c: Intravaginal method
d: Surgical method

Answer 11

d: Surgical method