SEMEN ANALYSIS

How long does it take for the sperm to mature and develop flagella in the epididymis?

90 days

72 days

3 weeks

7 days

Transport medium for the sperm.

Prostate fluid

Seminal fluid

Alkaline mucus

Metabolized by the spermatozoa for motility.

Fructose

Glucose

Citric acid

Acid phosphatase

Responsible for the gray appearance of semen.

Flavin

Fructose

Acid phosphatase

Alkaline mucus

Responsible for both coagulation and liquefaction of semen after ejaculation.

Seminal fluid

Prostate fluid

Bulbourethral glands

Seminiferous tubules

Neutralize acidity from the prostate secretions and the vagina.

Alkaline mucus

Prostate fluid

Seminal fluid

When the first portion of the ejaculate is missing, the sperm count will be _______, the pH will be falsely _______, and the specimen will ________.

Decreased; increased; not liquefy

Decreased; decreased; not liquefy

Decreased; increased; liquefy

Increased; decreased; liquefy

Semen composition: Bulbourethral glands

60-70%

20-30%

Which of the ff does not belong to the group?

Gray white color

Translucent

Musty

Yellow coloration

Urine is toxic to sperm, thus affects the evaluation of sperm motility.

True

False

Which does not belong to the group?

Sperm motility

Sperm concentration

Liquefaction

Sperm count

Specimens are collected after a period of sexual abstinence of:

<7 days

>2 days

NOTA

AOTA

Normal sperm count.

>40 million/ejaculate

<40 million/ejaculate

>20 million/ejaculate

<20 million/ejaculate

Normal sperm concentration

>40 million/ml

<40 million/ml

>20 million/ml

<20 million/ml

Suppose the specimen has not liquefied after 2 hours, what would you add to induce liquefaction for the specimen to be analyzed?

NSS

Bromelain

NOTA

AOTA

Watery (0) to gel like (4)

Viscosity

Liquefaction

Volume

Color

MATCHING TYPE: Alternative Sperm Motility Grading Criteria

Sperm motility is examined:

Within 1 hour of collection

Immediately after collection

After 6 hours of incubation

After 2 hours

Abnormalities in the following sperm morphology affects motility except:

Neckpiece

Head

Midpiece

Motility

Which sperm morphology produces energy required for motility?

Neckpiece

Head

Midpiece

Tail

Possible abnormality for decreased sperm count.

Vitality

Lack of seminal vesicle support medium

Male antisperm antibodies

Female antisperm antibodies

A single motile sperm on a wet preparation is an indication of an unsuccessful vasectomy.

True

False

Major component of seminal fluid.

Fructose

Glucose

ACP

Citric acid

Failure to document the time of collection primarily affects the interpretation of:

Appearance

Volume

Viscosity

The primary reason to dilute a semen specimen before performing a sperm concentration is to:

Immobilize the sperm

Facilitate the chamber count

Decrease the viscosity

Stain the sperm

The percentage of sperm showing average motility that is considered normal is:

25%

50%

60%

75%

The purpose of the acrosomal cap is to:

Penetrate the ovum

Protect the nucleus

Create energy for tail movement

Protect the neckpiece

What test/s is/are requested for forensic cases?

Acid phosphatase and glycoprotein p30

Acid phosphatase and citric acid

Citric acid

Glycoprotein p30 and citric acid

Failure to collect the _____ portion during ejaculation may give false decreased sperm count.

First

Last

Middle

Failure to collect the ______ portion during ejaculation may alter liquefaction and sperm motility.

First

Middle

Last

Liquid secreted by the prostate gland intended to cleanse the urethra.

Used to test sperm viability.

Eosin-nigrosin stain

Pap stain

Wright stain

Fructose test

SEMEN ANALYSIS

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