plate tectonics. noun plural but singular in construction. Tweet. geology: a scientific theory that the Earth's surface is made of very large sections that move very slowly; also: the movements of the large sections that form the Earth's surface.
The testicle is divided into parts called lobules. Each lobule contains tiny U-shaped tubes called seminiferous tubules. There are about 800 seminiferous tubules tightly coiled within the testicle. The seminiferous tubules open into a series of uncoiled, interconnected channels called the rete testis.Ducts, or tubes, connect the rete testis to a tightly coiled tube called the epididymis. The epididymis joins to a long, large duct called the vas deferens. Each testicle is held in the scrotum by a spermatic cord.he testicle is divided into parts called lobules. Each lobule contains tiny U-shaped tubes called seminiferous tubules. There are about 800 seminiferous tubules tightly coiled within the testicle. The seminiferous tubules open into a series of uncoiled, interconnected channels called the rete testis.
Spermatogenesis through the process of meiosis takes place within the thin seminiferous tubules, which loop tightly throughout the testes to a tremendous length (perhaps as much as a mile between the two testes) ... Click to read more below.The seminiferous tubules are the site of the germination, maturation, and transportation of the sperm cells within the male testes. Seminiferous tubules are made up of columnar Sertoli cells surrounded by spermatogenic cells on the epithelial interior and stem cells exteriorly.lick to read more below. The seminiferous tubules are the site of the germination, maturation, and transportation of the sperm cells within the male testes. Seminiferous tubules are made up of columnar Sertoli cells surrounded by spermatogenic cells on the epithelial interior and stem cells exteriorly.