Histology Flashcards
What is the ejaculatory pathway of sperm?
SEVEN UP
- Seminiferous tubules
- Epididymus
- Vas deferens
- Ejaculatory duct
- (Nothing)
- Urethra
- Penis
Compare the location of Leydig and Sertoli cells
Both are in seminiferous tubulues
- Leydig cells are around the outside of the tubule
- Sertoli cells are within the lumen of the tubule
Is there vasculature within the seminiferous tubulue or epidiymis? Why?
NO. There is a blood/testes barrier to prevent immune system from coming in contact with the developing sperm (which would look foreign)
Name the cell types throughout spermatogenesis and their number of chromatids
- Spermatagonia = 2C, diploid
- Primary spermatocyte = 4C, diploid
- Secondary spermatocyte = 2C, haploid
- Spermatid = 1C
*Gonna set your sights on my tits!
Name this structure. Which cells create it?
Sertoli cells (building a fence around the SAANA)
Name 5 functions of Sertoli cells
Picture the neighbor in his SAANA
- Spermatogensis support
- makes Androgen binding protein
- makes Aromatase
- makes iNhibin
- makes Anti-Mullerian hormone
What is the function of Leydig cells?
Leydig cells make testosterone
Where can spermatagonia be found?
What is their function?
- Spermatagonia line the seminiferous tubules
- They are the germ cells (2C) that produce primary spermatocytes
Where do sperm gain motility?
Within the epididymus
Where do seminal vesicle contents combine with sperm?
Seminal vesicle contents combine with sperm in the ejaculatory duct
Through which erectile tissue does the male urethra pass?
Corpus spongiosum
(Semen passes through Spongiosum)
Name the four cell types during oogenesis and their chromosome/chromatid number
- Oogonia (2C, diploid)
- Primary oocytes (4C, diploid)
- Secondary oocyte (2C, haploid)
- Ovum (1C, haploid)
What cells make up the corpus luteum?
What does it produce?
Corpus luteum = Remnants of the ovarian follicle that remain in the ovary after ovulation (granulosa and theca cells)
Produces progesterone (and estradiol)
Compare the two parts of the endometrium
- Endometrium basalis = Does not respond to hormone changes
- Endometrium functionalis = Responds to hormone changes, is shed during menses
What type of cells line…
- Vagina and ectocervix?
- Endocervix and uterus?
- Fallopian tube?
- Serosal surface of ovary?
- Vagina and ectocervix = stratified squamous epithelium
- Endocervix and uterus = simple columnar epithelium
- Fallopian tube = simple columnar epithelium with cilia
- Serosal surface of ovary = simple cuboidal epithelium