Chara (alga), a genus of algae in the family Characeae. Chara (moth), a genus of moths in the family Noctuidae. CHARA array, a telescope. Beta Canum Venaticorum or Chara, a star. Chara or Southern dogs, a constellation including Beta Canum Venaticorum and Cor Caroli.
Simple squamous epithelium can be studied by looking at cells which line blood and lymph vessels. These flattened cells are called endothelial cells . The nuclei are frequently found protruding into the lumen of the vessel. Observe the numerous large blood vessels present in the periphery of this section.
Blood vessels are composed of two interacting cell types. Endothelial cells form the inner lining of the vessel wall, and perivascular cellsâreferred to as pericytes, vascular smooth muscle cells or mural cellsâenvelop the surface of the vascular tube.