Osteoblasts.
Parathyroid chief cells secretes parathormone.
Goblet Cells
Each salivary gland is composed of 2 types of cells: a. mucous cells secretes mucus and b.serous cells secretes a watery substance, serous fluid.
Basophil
mast cells
granulosa cells
The lymphocytes become immunocompetent when the thymus secretes hormones. Lymphocytes are white blood cells that are found in a vertebrate's immune system.
Plasma cells
Parietal cells
plasma cells
Mast cells secrete histamine and heparin.
Hydroxyapatite is primarily secreted by osteoblasts, which are bone-forming cells. These cells synthesize and release the organic components of the bone matrix, including collagen, and facilitate the mineralization process that leads to the formation of hydroxyapatite crystals. This mineral is essential for providing strength and rigidity to bones and teeth.