39. USHERS DUTIES 27) A Pastor should appoint a head usher and assistant ushers to ensure the smooth running of the weekly church services. James 2:1-4 describes a church usher who favoured a rich man and discriminated against a poor man.This is what an usher should not do.Ushersâ duties should be as follows: 1) Be given a key to open up the church; 2) Be at church at least 30 minutes before the starting time of the service.his is what an usher should not do. Ushersâ duties should be as follows: 1) Be given a key to open up the church; 2) Be at church at least 30 minutes before the starting time of the service.
Bone cells. Bone cells are arranged in concentric circles around longitudinal tubes called (Osteonic (haversion) canals) Bone cells (osteocytes) are arranged in concentric circles around the osteonic (Haversian) canals. (TRUE) Bone cells are also called osteocytes. (TRUE).one cells. Bone cells are arranged in concentric circles around longitudinal tubes called (Osteonic (haversion) canals) Bone cells (osteocytes) are arranged in concentric circles around the osteonic (Haversian) canals. (TRUE) Bone cells are also called osteocytes. (TRUE).
Osteoblasts: Osteoblasts are bone-forming cells that descend from osteoprogenitor cells. They form a protein mixture known as osteoid, which mineralizes to become bone. Osteoid is primarily composed of Type I collagen. Osteoblasts also manufacture hormones, such as prostaglandins, to act on the bone itself.steocytes: Osteocytes are mature bone cells that originate from osteoblasts, which have migrated into and become trapped and surrounded by bone matrix, produced by themselves. The spaces they occupy are known as lacunae.