reproductive system Flashcards
what is the function of the bulbo-urethral glands
production of seminal fluid
the outer membrane is called the what
chorion
when the ovum is fertilised by the active sperm what is it called
zygote
what hormone is released from the ovary
relaxin
what produces testosterone
cells of leydig
what is metritis
inflammation of the uterus
what hormone produces milk
luteotroohic hormone
what is the developmental order in the reproductive system
conceptus, morula, embryo, foetus
what is gastrulation
the process by which the three germ layers are formed
where does sperrmatogenesis take place
seminiferous tubules
in dogs, what produces the seminal fluid
prostate gland
what stage of the oestrus cycle does the corpus luteum begin to form
oestrus
where do ovum get fertilised
fallopian tubes
what structure allows movement of the tested within the scrotum
cremaster muscle
what hormone stimulates the development of the corpus luteum
luteinising hormone
what does the corpus luteum produce
progesterone
where is sperm stored
epididymis
what part of the penis contributes to the tie in canine mating
os-penis
what structure catches the release ova at the time of ovulation
infundibulum
name the sequencing of events in canine mating
courtship, intromission, ejaculation, tying
what is the order of the oestrus cycle of a bitch
pro oestrus, oestrus, metoestrus, anoestrus
the thickened area of the embryonic membranes by which the mammalian foetus is attached to the endometrium is called what
zonary placenta
what is the middle embryologic germ cell layer called
mesoderm
describe the oestrus cycle in a butch including the hormonal influence
GnRh is released from the hypothalamus which stimulates the anterior pituitary to produce FSH.
FSH acts on the ovary to start follicle formation. the follicle produces oestrogen which has negative feedback of FSH and promotes the release of LH.
LH surge happens and causes ovulation. CL forms and produces progesterone for 9 weeks. CL regresses, progesterone decreases and then the bitch goes into anoratrous
explain how spermatogenesis takes place
GnRh is released by the hypothalamus
Gnrh stimulates the anterior pituitary gland to release LH
LH is released and acts of the cells of leading to produce testosterone
testosterone is released after a surge of LH
FSH and testosterone act on the semiferous tubules which stimulate the sertoli cells to produce oestrogen and the right nutrient filled fluid to create sperm in the spermatogenic cells
