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8. male repro histo
BrownMed
26
Accounting
Pre-School
11/02/2010

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Cards

Term
pathway of male repro
Definition
straight tubes (tubuli recti) > rete testis > efferent ducts > epididymis > vas deferens > ejaculatory duct > penile urethra
Term
male accessory exocrine glands (2)
Definition
seminal vesicles and prostate
Term
spermatogenesis
Definition
spermatogonia > primary spermatocyte > secondary spermatocyte > early spermatid > late spermatid > spermiogenesis
Term
male PGCs / where
Definition
spermatogonia; sit closest to basement membrane
Term
t/f spermatogonia undergo mitosis
Definition
true! renewing stem cell population.
Term
N and C of primary spermatocytes
Definition
2N4C = post-replication
Term
male meiosis I , II
Definition
I forms secondary spermatocytes, II forms early spermatids
Term
ICSH
Definition
=LH; stimulates Leydig cells in males to secrete testosterone.
Term
ABP
Definition
secreted by sertoli cells in response to FSH in order for test. to bind in seminif. tubules
Term
AMH
Definition
produced by sertoli cells
Term
blood/testis barrier
Definition
formed by sertoli cells to prevent antibodies from eating sperm via tight junctions. subdivides the basal from the adluminal region of the seminif tubule and separates spermatogonia from primary spermatocytes onwards to sperm
Term
if antibodies bind to head vs. tail of sperm
Definition
= bad binding w/ egg vs. bad motility
Term
key events in spermiogenesis (4)
Definition
growth of flagella from basal body MTOC, mitochondrial sheath forms around flagellum, acrosome forms = capping the nucleus, excess cytoplasm is shed and phagocytosed by sertoli cell
Term
late spermatids
Definition
spermatozoa
Term
residual body
Definition
excess cytoplasm that is ched from spermatozoa and phagocytosed by sertoli cell
Term
rete testis
Definition
concentrate sperm (prevents infertility)
Term
efferent ducts / derived from what structure / epithelium
Definition
derived from mesonephric tubules, columnnar ciliated and non-ciliated epithelium surrounded by smooth muscle. scalloped lumen.
Term
non-ciliated epithelium in efferent ducts serves what purpose
Definition
absorption
Term
epididymis / epi
Definition
stores sperm and lets it mature. pseudostratified epi w/ stereocilia
Term
vas deferens / derived from what structure, epi
Definition
derived from mesonephric duct, thick circular smooth muscle, not coiled like epididymis, pseudo w/ stereocilia
Term
seminal vesicles / epi
Definition
curly diverticulum of distal ends of vas deferens, columnar epi that manufactures and secretes components of the seminal fluid > ejaculatory ducts
Term
prostate / prostatic fluid
Definition
sugary and alkaline fluid into urethra. concretions!
Term
BPH
Definition
benign prostatic hyperplasia
Term
penis forms from (2)
Definition
genital tubercle and genital folds
Term
what tissue surrounds the urethra? what doesn't?
Definition
corpus spongiosum; 2 corpora cavernosa
Term
epithelial lining of seminiferous tubule
Definition
sertoli cells
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