Tunica Intima
blood cells
The tunica interna of a blood vessel is a single layer of endothelium with a basal lamina.Connective tissue
If stratified squamous epithelium lined the blood vessels, gas and nutrient exchange across the vessel walls would become much more complex, requiring multiple transports and making the process much more energy intensive.
thin wall - rapid diffusion small gaps - allow diffusion and actv tspt goblet cells in lung epithelium - secrete mucus to trap bacteria ciliated epithelium - waft mucus out of the lungs squamous - stretch and recoil around a blood vessel there are about another 10 types of specialised epithelium tissues and cells in the human body
The innermost layer of epithelial cells of a blood vessel is called endothelium.
connectiveThe outer layer of a blood vessel (artery or vein) is called the tunica externa or tunica adventitia.See http://training.seer.cancer.gov/module_anatomy/unit7_3_cardvasc_blood1_classification.htmlpericardium is the layer of the blood vessel that is made of tough connective tissue.
The surface of the umbilical cord is comprised of amniotic epithelium contiguous with the placenta and fetus. The connective tissue of the umbilical cord is of extraembryonic mesoderm origin, composed of Wharton's jelly (mucoid connective tissue) and sparsely distributed cells, including, stromal mesenchymal cells, contractile cells, macrophages, mast cells and myofibroblasts. It also contains a large quantity of water which aids in the prevention of umbilical blood vessel compression. There are umbilical arteries (2) and a vein inside the mucoid tissue.
The tunic intima is the innermost layer of a blood vessel. It has a slic surface that minimizes friction, allowing blood to move through the lumen.
connective tissue *No. of cells are less. * matrix is in large amount * cells donot on basement membrane. *three types:connective tissue skeletal tissue liquid connective tissue Epithelial tissue *A large no. of cells occurs in the tissue *matrix is absent or negligible. *cells rest on basement membrane. *two types:simple epithelium stratified epithelium
The connective tissue in the intestines, arteries, uterus, and other hollow organs may be unusually weak, leading to organ or blood vessel rupture
A benign spindle cell neoplasm is a tumor that develops in connective tissue other than bone such as skeletal muscle, fat, tendon, fibrous tissue and nerve and blood vessel tissue. The most common benign soft tissue tumor is called a lipoma.
Sarcomas are malignancies that arise from mesenchymal tissues: (think of middle layers of body) bone, cartilage, muscle, fat, blood vessels. Examples are osteosarcoma-bone, chondrosarcoma-cartlilage, liposarcoma-fat, myosarcoma-muscle, and angiosarcoma-blood vessel.