While much information can be gleaned by testing the blood itself (drawn from a vein by phlebotomy), it is sometimes necessary to examine the source of the blood cells in the bone marrow to obtain more information on hematopoiesis; this is the role of bone marrow aspiration and biopsy.
From Wikipedia, the free encyclopedia. The wheel bug (Arilus cristatus), in the family Reduviidae, is one of the largest terrestrial true bugs in North America, being up to 1.5 inches (38 mm) in length. A characteristic structure is the wheel-shaped pronotal armor.
The bugle is one of the simplest brass instruments, having no valves or other pitch-altering devices. All pitch control is done by varying the player's embouchure. Consequently, the bugle is limited to notes within the harmonic series. See bugle call for scores to standard bugle calls, all consisting of only five notes. These notes are known as the bugle scale.