Gastric chief cells are in the digestive system. They release pepsinogen which is a digestive enzyme that when activated by hydrochloric acid turns into pepsin and helps in the digestion of proteins.
Chief cells may also refer to parathyroid chief cells which produce and secrete parathyroid hormone when stimulated by low levels of calcium.
a cell which releases a precursor enzyme. There are two types of chief cells which are most commonly referenced:
Gastric chief cells secrete pepsinogen and rennin in the stomach.
Chief cells produce the parathyroid hormone (PCH), the most important regulator of calcium balance of the blood.
they make pepsinagin.
They are often found in the stomach.
The secrotory cells of the parathyroid gland have the ability release chemicals, for example, the chief cells which secretes the parathyroid hormone.
No, parathyroid glands are usually beside or on the surface of the thyroid. "Para" means beside, as in beside the thyroid. It serves a different function and has a much different structure.
Gastric chief cells (as opposed to the chief cells present in the parathyroid gland) are the zymogen cells in the stomach that release pepsinogen (a precursor (zymogen) of pepsin). Without stimulation chief cells normally secrete pepsinogen at about 20% of the maximum ability. ACh (released by nerves) is the most important pathway for gastric chief cell activation. ACh also stimulates parietal cells, which secrete HCl (stomach acid). The fall in pH causes a reflex which further stimulates chief cells. Alternatively, acid in the duodenum (the first portion of the small intestine), stimulates release of secretin from S cells of the small and large intestine. Secretin also activates gastric chief cells.
The parathyroid glands release the parathyroid hormone, also known as parathormone. The parathyroid glands are four tiny masses of gland tissue located on the posterior surface of the thyroid gland. Each gland is about the size of an apple seed.
Thyroid gland secretes/ makes calcitonin. Parathyroid gland maintains calcium (and phosphate) balance with calcitonin. Sounds weird but that's what it does.
The secrotory cells of the parathyroid gland have the ability release chemicals, for example, the chief cells which secretes the parathyroid hormone.
PTH
Parathyroid chief cells secretes parathormone.
Parathyroid hormone (PTH), parathormone or parathyrin, is secreted by the chief cells of the Parathyroid Glands as a Polypeptide containing 84 amino acids.Basically these glands are present behind the thyroid gland and varies in number. The main function of PTH is to increase Blood Ca2+ level.
No, parathyroid glands are usually beside or on the surface of the thyroid. "Para" means beside, as in beside the thyroid. It serves a different function and has a much different structure.
Parietal cells and chief cells
The function of the parathyroid glands is to secrete parathyroid hormone, which causes the release of the calcium present in bone to extracellular fluid (ECF). The ECF is the fluid found outside cells in all body tissues. PTH does this by activating the production of osteoblasts, special cells of the body involved in the production of bone and slowing down osteoclasts, other specialized cells involved in the removal of bone.
infection
To fight infections
Haemosiderin is a wear and tear pigment of the cells. It has no function of its on as such it colors the tissue yellow can signify ageing of the cells.
Haemosiderin is a wear and tear pigment of the cells. It has no function of its on as such it colors the tissue yellow can signify ageing of the cells.
The Spleen