Sexual Assault Evidence Flashcards
Seminal Plasma
Composed of Proteins Salts Sugars Lipids Enzymes (Acid phosphatase) Nutrients Hormones Basic amines (spermine) P30 (prostate specific antigen-PSA) Choline Cellular material Flavins (source of flourescence under UV -seen using ALS)
Fluid delivered through penis in ejaculation
Semen
*spermatozoa (cellular component) = plural
Acid phosphatase (AP) and Prostate Specific Antigen (PSA) both come from ______
Prostate gland
Seminiferous tubles
Long thread like tubes found in each of the testicles where spermatozoa are produced
Coagulation
Putting together making gel like substance
Seminal plasma secretions
Testes Epididymides Seminal vesicles Prostate Cowper's glands
Spermatozoon
Singular
Half sperm = X
Half sperm = Y
Haploid cell
Morphology of sperm
Head -contains nucleus & acrosome
Tail and Midpiece- contain mechanisms and enzymatic materials for motility
- Contains mitochondria
- Each sperm mitochondrion carries multiple copies of paternal mitochondria genome
- energy for sperm flagellar motility
- joins head and tail
Midpiece (neck)
Mobility or motility of spermatozoa
Tail
NFSTC
National forensic science technology center
Protamines
Arginine rich nuclear protein that replaces histones late in haploid phase of soermatogenesis
Two types of protamines are______
P1 & P2
Aspermia
No ejaculation (absence of spermatozoa)
- infertility
- drug use
- prostate surgery
Azoospermia
Lack of sperm cells in the semen (no spermatozoa)
- temporary or permanent
- vasectomy
- drugs
- alcoholism
- high fever
Oligospermia (asthenozoospermia)
Fewer number of spermatozoa
Teratozoospermia
Increased abnormal forms of sperm
Oligoasthenoteratozoospermia
Spermatozoa variables all subnormal (OAT)
Leucocytospermia
Increased leukocytes in semen
Necrozoospermia
All sperm non viable or non motile
Globozoospermia
Sperm heads lack acrosome caps and can’t fertilize
rare*