Histology Flashcards
What surrounds the testis
Double layer of Peritoneum-tunica vaginalis (mesothelial cells and thin connective tissue)
Thick capsule of dense irregular connective tissue
Which duct joins the Vas deferens (ductus deferens)
ductus epididymis
Synonymn for Support cells
Sertoli cells
What do Leidig cells do?
secrete androgens such as testosteroen
True/False, The sertoli cells are modified squamous epithelial cells
False. They are modified cylindrical epithelial cells
What seperates the adjacent sertoli cells into two compartments creating a blood-testis barrier
Zonulae Occludentes
What do sertoli cells secrete
- tubular fluid
- Androgen-binding Protein
- Inhibin (into blood, inhibits FSH)
Function of Androgen-binding protein
binds test in seminferous tubules, keeping it there in high concentrations for spermatogenesis
Brief description of spermatogenesis
1.Spermatogonium (mitosis) —>Primary spermatocyte (meiosis 1)—> secondary spermatocyte (meiosis 2)—>early spermatid —>late spermatid—>adult Spermatozoon.
Part of spermiogenesis is forming the acrosomal cap-elaborate
The acrosomal cap contains Enzyme hyaluronidase (hyaluronidase breaks down hyaluronic acid which surrounds the oocyte)
Function of blood-testis barrier
prevents toxic substances from entering tubules
prevents immune Response against sperm cells
Name of long microvilli found in vas deferens
sterocilia
What is the vas deferens tubule made of:
Mainly smooth muscle (inner longitudinal, middle circular & outer longitudinal)
inner epithilial layer: (pseudostratified cylindrical Epithelium with Long microvilli) which rests on thin layer of connective tissue (lamina propria)
What does the glandular tissue of the prostate Gland consist of :
Consists of 3 Groups of tubulo-acinar Glands (mucosal, submucosal, main prostatic)
Glandular Epithelium (prostate Gland)
simple cylindrical to pseudostratified
What type of epithelium covers the ovaries?
simple cuboidal epithelium
What structures are found in the ovarian Cortex (from birth-puberty)
Primordial follicles
When follicular cells become cuboidal..name
granulosa cells
Name layer covering Primary oocyte in the Primary follicle
zona pellucida (homogenous pink)
After Ovulation remnants of follicle become
corpus luteum
Corpus luteum eventually become (after 10-14days)
corpus albicans
Epithelium of cervix
simple mucus-secreting cylindrical epithelium (endocervix)
Epithelium at opening of cervical canal
unkeratinised stratified squamous epithelium (covers ectocervix
Outer layer of uterine corpus
serosa
Endometrial epithelium
simple cylindrical epithelium
Connective tissure between two Glands of endometrial epithelium
stroma
Start of menstrual cycle
first day of bleeding
Proliferative Phase of menstrual cycle
day 5-14
Secretoy Phase (luteal phase) of menstrual cycle
15-28
Day 14 in menstrual cycle signifies
ovulation
Epithelium of mucosa in vagina
unkeratinised stratified squamous epithelium
