Layers Of Scrotum
Mesh like smooth muscle layer just beneath the scrotal skin
Tunica Dartos
why do testes have low insulation
thin skin, low subcutaneous fat, or hair
Fight or flight skeletal muscle that cannot sustain contractions, hot temperature causes muscle to relax and cold temperature causes muscle to contract
Cremaster Muscle
what is the connective tissue core called
Mediastinum
Mature spermatids are released from Sertoli cells into the seminiferous tubule lumen prior to their passage to the epididymis
What is spermiation?
Fatty and membranous layers
Scrotal Fascia
how do sweat glands help with temperature regulation
evaporative cooling
A single artery surrounded by a network of veins that allows for counter current heat exchange causing the cooling of arterial blood supply
Pampiniform plexus
Seminiferous tubules and interstitial tissue are located in the
parenchyma
How do sperm move throughout the tracts?
- Contractions and relaxation of the smooth muscle fibers
- Rely on fluid and contractions to move through the testis
Heavily populated with sweat glands and thermoreceptors
Scrotal Skin
Nerves in the scrotum control response to temperature of testes are called
thermoreceptors
Provides support to developing germ cells and forms the blood testes barrier
Sertoli cells
Why are the testes housed outside the body cavity?
- Because the testes are where the spermatozoa are produced, the testes have to be regulated in order to protect sperm
cells that produce testosterone
Leydig Cells
What temperature should the testes be in comparison to body temp.?
4-6 C lower
Which type of germ cell is located closest to the basement membrane?
Spermatogonia
highly convoluted tubules network
seminiferous tubules
Tubules within the mediastinum that transports sperm to the efferent ducts
rete tubules
What are the 4 steps within differentiation
Golgi phase
Cap phase
Acrosomal phase
Maturation phase
What is the correct order for the layers of the scrotum from outer to inner?
Scrotal skin -> tunica dartos -> scrotal fascia
Cryptorchidism
Those properties do not function correctly due to being incorrectly structured.
all the space that is in between the tubular component
interstitial compartment
What are the two major functions of the testes
to produce sperm
to produce testosterone
Secretions in the cervix, uterus and oviduct to remove coating and allow for sperm fertilization at the oocyte
What is capacitation?