andrology final 2025

The tip of the sheath( foreskin) is surrounded by long hair in:

a. Stallion

b. Bull

c. Ram

d. Boar

b. Bull

Urethra becomes a 2-4 cm urethral process in:

a. Stallion

b. Bull

c. Ram

d. Boar

c. Ram

The terminal portions of the ductus deferens expand to form the ampulla not in:

a. Stallion

b. Bull

c. Ram

d. Boar

d. Boar

The preputial diverticulum has:

a. Stallion

b. Bull

c. Ram

d. Boar

d. Boar

Which factor is used in assessing the suitability of a bull for reproduction?

a. Penis length

b. Penis circumference

c. Horn symmetry

d. Scrotal circumference

d. Scrotal circumference

In goat insemination, we use semen:

a. Cooled

b. Fresh

c. All mentioned

d.Frozen

c. All mentioned

Ease of birth, as one of the factors determining the selection of a sire, should be taken into account in:

a. Dairy cattle, beef cattle, and draught horses

b. Beef cattle, sport horses, and dairy sheep

c. Pigs, horses, and nutria

d. Sheep and cattle

d. Sheep and cattle

Frozen semen should be used to service a mare:

a. 12 h before ovulation up to 6h after ovulation

b. Twice a day, from mid-estrus to ovulation

c. 6h before ovulation to 24h after ovulation

d. On Tuesday and Friday

c. 6h before ovulation to 24h after ovulation

Insemination of a sow requires:

a. Completion of specialist training and use of a speculum

b. Confirmation of estrus using ultrasound and the use of a snout loop

c. Use of a long catheter and 100 ml of semen

d. Suspending her head down and using laparoscopy

b. Confirmation of estrus using ultrasound and the use of a snout loop

The desired semen parameters in dogs are:

a. 100-500x10^6 sperm cells/ml

b. 500-900x10^6

C. 51-95x10^7

d. 100-500x10^7

a. 100-500x10^6 sperm cells/ml

Neoplastic tumor of the testis that is hormonally active (in dogs)

a. Transmissible Venereal Tumor

b. Sertolioma

c. Leydigoma

d. Adenocarcinoma

b. Sertolioma

Electroejaculation is

a. Banned within the EU

b. A method that allows the obtaining of sexed semen

C. The most popular method of obtaining semen is because it guarantees a germ-free sample

d. A technique that allows the obtaining of a higher volume of semen in cats

D, A technique that allows the obtaining of a higher volume of semen in cats

BPH can not be treated with

a. Castration

b. GnRH analogs

C. Osaterone acetate

d. Testosterone

d. Testosterone

Os penis is:

a. A bone only seen in dogs

b. A bone is seen in dogs and cats, and it is developed in the same way

C. A bone seen in cats and dogs, but of a different origin

d. A pathology similar to osteosarcoma

C. A bone seen in cats and dogs, but of a different origin

The ART method is often used in cattle.

a. MOET

b. CLONING

c. Nuclear transfer

d. De-extinction

a. MOET

The place of deposition during frozen semen insemination in dogs is

a. Uterine cervix

b. Vagina

C. Uterine cervix or vagina

d. All answers are incorrect

d. All answers are incorrect

During sow insemination, we use semen -

a. Always frozen

b. Usually chilled or sometimes frozen

C. Always fresh

d. In sows, we always use natural mating

b. Usually chilled or sometimes frozen

Accessory glands are examined during the assessment of male breeding suitability in:

a. Bulls

b. All males

C. Ruminants

d. All except boars

a. Bulls

19. What libido level is acceptable in a stallion

a. L2-L3

b. L2-L4

c. L2-L5

d. L1-L3

b. L2-L4

Mass movement of semen is observed in the semen of:

a. boar

b. Dog

C. Stallion

d. Bull

d. Bull

A frozen semen dose from a stallion usually includes:

a. One mini straw

b. 4-8 midi straws

C. Stallion semen is not frozen

d. A 20 ml syringe

b. 4-8 midi straws

What is the main clinical use of the sperm HOS test (hypo-osmotic swelling test)?

a. Detecting leukocyte concentration

b. Assessing sperm DNA fragmentation

C. Evaluating sperm membrane integrity, vitality

d. Measuring sperm tail morphology

C. Evaluating sperm membrane integrity, vitality

The SCD (Sperm Chromatin Dispersion) test primarily evaluates:

a. Plasma membrane integrity

b. Chromosomal aneuploidy

C. DNA fragmentation patterns

d. Hormonal stimulation response

C. DNA fragmentation patterns

Which condition is most likely associated with elevated ROS levels in semen?

a. Retrograde ejaculation

b. Leukocytospermia

C. Hypogonadism

d. Ejaculatory duct obstruction

b. Leukocytospermia

What advantage does microfluidic sperm selection offer in ART?

a. Selects sperm with the highest volume

b. Promotes genetic recombination

C. Separates motile sperm in a laminar flow without turbulence

d. Requires no specialized equipment

C. Separates motile sperm in a laminar flow without turbulence

What is a clinical indication for epididymal sperm aspiration (PESA or MESA)?

a. Low testosterone

b. Obstructive azoospermia

C. Retrograde ejaculation

d. High leukocyte count in semen

b. Obstructive azoospermia

What is the primary role of protamines in sperm chromatin?

a. They degrade damaged DNA strands.

b. They aid in mitochondrial function.

C. They compact the nuclear DNA

d. They regulate RNA transcription.

C. They compact the nuclear DNA

Why is semen cooled to 5°C gradually over 2 hours after initial extension?

a. To maximize glycerol penetration

b. To prevent cold shock in sperm cells

C. To activate the antibiotic properties

d. To solidify the extender

b. To prevent cold shock in sperm cells

What critical temperature must semen reach before being plunged into liquid nitrogen?

a. -50ºC

b. -75°C

C. -100°C

d. -196°C

d. -196°C

What information is typically included on straw labels?

a. Sire's diet and age

b. Freezing rate and extender pH

c. Sire name, breed code, registration number, date frozen, and processing location

d. Antibiotic concentration and glycerol volume

c. Sire name, breed code, registration number, date frozen, and processing location

Explain the abbreviation ISCI.

a. Intracytoplasmic Sperm Injection

b. Intrauterine Sperm Injection

C. Internal Circulation Sperm Integrity

d. Intra-Chromatin Systemic Impact

a. Intracytoplasmic Sperm Injection

32. Impotentia generandi....

a. Occurs in boars as a result of a broken penis

b. Is inability or reduced ability to fertilize

c. Does not occur in animals

d. All answers are incorrect

b. Is inability or reduced ability to fertilize

Phimosis is ....

a. Type of penis degeneration in dogs

b. Type of prostatic gland defect in boars

c. Stenosis of the preputial orifice leads to the prevention of normal protrusion

d. Deviation of the penis, either ventral, lateral, or corkscrew type, or due to a congenitally persistent

frenulum

c. Stenosis of the preputial orifice leads to the prevention of normal protrusion

What is the temperature of liquid nitrogen

a. -239 C

b. -196 C

c. -76 C

d. 146 F

b. -196 C

GnRH analogs are used in dogs to...

a. For pharmacological castration in long-acting doses

b. To improve male libido in short-acting doses

c. In the treatment of ovarian cysts in females

d. All answers are correct

d

Choose the true sentence...

a. Dag defect is the defect of spermatozoa in bulls

b. Dag defect is the disease of the bulbourethral gland in cats

c. Dag defect is the defect of oocytes in female goats

d. Dag defect is the defect of the preputial orifice in rams

a. Dag defect is the defect of spermatozoa in bulls

Osaterone acetate in Ypozane

a. Blocks the GnRH receptor

b. Blocks the secretion of thyroid hormones

C. It is an androgen receptor blocker

d. Inhibits the function of the adrenal glands

C. It is an androgen receptor blocker

The ovum pick-up method is used for

a. Ovarian cancer treatment

b. Collection of oocytes from recipient females for ART techniques

c. Estrus synchronization

d. All answers are correct

b. Collection of oocytes from recipient females for ART techniques

. What is the primary purpose of sperm selection in ART procedures?

a. To increase sperm volume

b. To eliminate sperm mitochondria

c. To obtain motile, morphologically normal sperm and remove contaminants

d. To isolate seminal plasma for IUI

c. To obtain motile, morphologically normal sperm and remove

40. What is the target sperm concentration per insemination dose in bull semen

a. 5 x 10^6 motile sperm

b. 15 x 10^6 motile sperm

c. 20 x 10^6 motile sperm

d. 50 x 10^6 motile sperm

c. 20 x 10^6 motile sperm