epiphyseal plate the thin plate of cartilage between the epiphysis and the shaft of a long bone; it is the site of growth in length and is obliterated by epiphyseal closure. equatorial plate the collection of chromosomes at the equator of the spindle in mitosis.
howell-jolly body. n. A spherical granule often observed in the stroma of a red blood cell, especially after a splenectomy.
Semi-tubular rivets are also referred to as tubular rivets. A partial hole is evident at the tip of the rivet tail end. This calls for less force during driving processes. Waxing is an integral process for tubular rivets. This facilitates proper assembly. They offer a quick means of riveting where items are produced en masse. Tubular rivets are ideal to use as pivot points since the rivet only swells at the tail. The rivets are usually plated with tin, nickel, brass or zinc. Finished tubular rivets have the head to one side with a shallow blind hole apparent on the other side. 3. Compression Rivets. These have two members, a solid male rivet and a female tubular rivet.