Chapter 3 (Male Reproductive Tract) 2 Flashcards
A bulls testicles tend to be (more toward anus/more pendulous)
more pendulous
The scrotum circumference is directly correlated to…
the amount of sperm produced
big = more
The ___ is considered the “highway” to the epididymus
mediastinum
Where is sperm stored
in the tail of the epididymus
How much sperm is usually stored
anywhere from 6 to 10 ejaculates worth
The closer to the ___ compartment means the more immature a gamete is
basal
Cells found in the Basal Compartment that are muscle cells that contract to help sperm up
Peritubular myoid cells
3 things found in the Interstitial compartment
Blood vessel
Leydig cells
Lymphatics
Which cells are responsible for producing testosterone
Leydig cells
Which cell governs spermatogenesis
Sertoli cells
What two components create the blood-testies barrier
tight junction + peritubular myoid cells
What is the importance of the blood-testies barrier
It helps stop immune cells from passing through, because if they did, they would attack the gametes leading to sterilization
What barrier is critical for spermatogenesis
the blood-testies barrier
The ductus deferens turns into the ___
urethra
Premature sperm contain a ___ droplet
cytoplasmic
What is the name of the gland that produces a thick viscus and is prominent in boars
Bulbourethral gland
(T/F) Accessory glands are not required for reproduction
True
however they do enhance the chances of copulation
(T/F) A fibroelastic penis requires blood flow
True
however there is no change in diameter
Which species produces the least amount of sperm and what do they have to compensate for this
Ram
filiform appendage
(T/F) A filiform appendage is required for rams
false
however it does increase chances
What is a major problem for the filiform appendage
urinary calculi (kidney stones)
Which species of animal has induced ovulation
Cats
their body does not release the oocyte until copulation
