After all, a nail is sharp, and the inside of the nose is sensitive. Putting a foreign object deep into your nasal cavity isn't particularly comfortable, and it can be certainly painful when the performer is learning to do the trick. However, another obstacle -- sneezing -- can be harder to overcome.
Osteoclasts are the bone cell that destroys bone. This allows bone  remodeling, and allows the skeletal system to act as a reservoir  for minerals to maintain blood mineral â¦ levels. Bone cells that are involved in reabsorption and breakdown of the  bone matrix are referred to as osteoclasts.
Principal cells are the main Na+ reabsorbing cells and the site of action of aldosterone, K+-sparing diuretics, and spironolactone. Type A and B intercalated cells make up the second cell type in the collecting duct epithelium. Type A intercalated cells mediate acid secretion and bicarbonate reabsorption.he collecting duct cells (CDCs) are highly water permeable and are a key component of the collecting duct, the last site where NaCl and water are reabsorbed in the kidney.