Monocytes are usually identified in stained smears by their large kidney shaped or notched nucleus. These change into macrophages after entering into the tissue spaces, and in endothelium can transform into foam cells.
As a quick overview, the muscles that attach to the first rib are: subclavius, anterior scalene, serratus anterior, middle scalene, and levator costae.The job of these muscles is either to fix the rib in place or draw it upwards.lso present are the superior intercostal artery and vein. As a quick overview, the muscles that attach to the first rib are: subclavius, anterior scalene, serratus anterior, middle scalene, and levator costae. The job of these muscles is either to fix the rib in place or draw it upwards.
If, on the other hand, 12th rib is fixed by quadratus lumborum and oblique muscles of anterior abdominal wall, the intercostal muscles (especially internal intercostal) lower the 1st to 11th ribs, as in expiration.y elevation of first and second ribs by scalene muscles which is otherwise fixed in quiet respiration, by elevation of clavicle by sternocleidomastoid and other muscles also elevate the ribs, thus help expanding the thoracic cavity and ultimately in inspiration. Accessory muscles involved in forced expiration are.