Terms Flashcards
what are hormones
signalling molecules that modulate the activity of target tissue
what does lipophilic mean
a carrier protein which likes lipids - can pass plasma membrane
sexual dimorphism
can see the sex of the embryo - ultrasound
what does totipotent mean in the context of early embryogenesis
totipotent cells have the ability to differentiate into any embryonic cell
what are is the trophectoderm/trophoblast
multipotent cells capable of differentiating into any cell type within the cell lineage (placental)
what is the inner cell mass
pluripotent cells capable of differentiating into any embryonic cell
what is the mesonephros
the early version of the adult kidney during early embryonic stage
what is the ovarian cortex
inside of the ovaries
what are the testes
primary male reproductive organ
what is puberty
gradual acquisition of reproductive competence
what is castration
removal, destruction, or impairment of testicular function
steer
castrated bovine
wether
castrated ovine (sheep)/caprine (goats
barrows
castrated swine
gelding
castrated equine
what is spermatogenesis
production of spermatozoa (male gamete) by the testis
what is spermiation
release of fully differentiated spermatozoa into lumen of seminiferous tubules
what is the breeding soundness exam (BSE)
prognostic of sires ability to get females pregnant
what are follicles
supportive structure in ovaries that secrete several hormones
anestrus
when animal is not having repeated estrous cycles
folliculogenesis
continuous process for development of primordial follicles into antral follicles before ovulation
oogenesis
discontinuous process for the development of an ovum into a cell competent to further develop into an embryo when fertilized
