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).
Osteoprogenitor Cells. These are immature cells that are primarily located in the bone marrow and periosteum (membrane that lines the surface of all bones). They mature into the osteoblasts, another type of bone cell.steoblast Cells. These are the bone cells that are primarily responsible for bone formation. They only have one nucleus and are derived from osteoprogenitor cells. They function by secreting a substance called osteoid, which is also known as the bone matrix.