Not to be confused with Retinal. Retinol, also known as Vitamin A1, is a vitamin found in food and used as a dietary supplement. As a supplement it is used to treat and prevent vitamin A deficiency, especially that which is resulting in xerophthalmia.
Desmosomes are anchoring junctions â mechanical couplings scattered like rivets along the sides of adjacent cells to prevent their separation. On the cytoplasmic face of each plasma membrane is a thickening called a plaque.
The cells depolarize first, then the muscle contracts, repolarization occurs, and the cells relax.7. Sodium and calcium move into the cell, potassium moves out of the cell.8. Gap Junction connects adjacent cardiac cells, allowing ions to pass between cells.