seminal fluid Flashcards
Different application or purposes of seminal fluid analysis
- Investigation of fertility
- Forensic studies like medico legal cases example rape
- Evaluation of the effectiveness of vasectomy
Different component of semen
- Spermatozoa
- Seminal plasma
known as matured cells
spermatozoa
Nutritive medium of proper osmolality and volume
Seminal Plasma
Activates the spermatozoa to greater motility
Seminal plasma
5% of the semen volume come from
testis (seminiferous tubules)
Seminiferous tubules is located at
testis
for maturation and storage of sperm cells
Epididymis
60% of the semen volume come from
Seminal vesicle
viscid, neutral, or slightly alkaline fluid , often yellow (flavin)
Seminal vesicle
high in fructose
Seminal vesicle
seminal vesicle provides substrate responsible for the
coagulation
seminal vesicle provides substrate responsible for the coagulation of semen following
ejaculation
prostate provides
20-30%
relatively slight amount
first fraction
clearly viscid fluid believed to originate largely or perhaps exclusively from the urethral and bulbourethral glands
first fraction
cleanses and lubricates
first fraction
prostatic secretion along with most of the spermatozoa
Second fraction
relatively small secretions from the epididymis & vasa deferentia
Second fraction
consist almost entirely of a muscoid secretion resulting from emptying of the seminal vesicles
Third fraction
Complete Collection is Essential
- 1st portion missing (1st and 2nd fractions): decreased sperm count, falsely increased pH, specimen will not liquefy
- Last portion missing: decreased semen volume, falsely increased sperm count, falsely decreased pH, specimen will not clot
Collection of Seminal Fluid
- 3 day period of continence
- Use warm, sterile glass or plastic containers for collection
- keep specimen at body temp and deliver to the lac within 1 hour
- Fertility testing: 2-3 samples at 2 weeks’ interval
- Fresh specimens should liquefy within 30-60 mins after collection
Methods of Collection
- Self-production
- Condom Collection (non - lubricant - containing rubber or polyurethane)
- Aspiration from the vaginal vault after coitus
- Coitus interruptus
- Container: wide-mouthed bottle
seminal fluid analysis, gross examination
Odor must
musty , acrid, fishy