What is made of connective tissue and blood vessels?
BONE MARROW-There are two forms of bone marrow contained within the structure of bone: yellow and red. Both yellow marrow and red marrow are made up of connective tissue and blood vessels.
connective The outer layer of a blood vessel (artery or vein) is called the tunica externa or tunica adventitia. See <A href="http://training.seer.cancer.gov/module_anatomy/unit7_3_cardvasc_blood1_classification.html">http://training.seer.cancer.gov/module_anatomy/unit7_3_cardvasc_blood1_classification.html</A> pericardium is the layer of the blood vessel that is made of tough connective tissue.
Epithelial tissue covers the whole surface of the body and lines the inside of tube and hollow organs. It is made up of cells closely packed and ranged in one or more layers. It provide protections, regulates exchange, transport, secrete, the cells touch, act as barrier, ex: lungs, intestine, kidney, exocrine gland, skin, trachea, lining blood vessel. Epithelial tissues are tightly packed sheets of cells. They to protect the body (ie. you skin), absorb nutrients…
loose aereolar connective tissue. this connective tissue is made up of 3 connective tissue fibres, collagen, elastic and reticular fibres. it contains fibroblast (most abundant cell type in connective tissue, which produces ground substance and fibres of connective tissue), macrophages, mast cells and plasma cells. its function is to hold and trap fluid, wrap and cushion organs and is important in inflammation.
The human skin is made up of three basic layers ; the epidermis (outer layer), the dermis(middle layer) beneath the epidermis and the subcutaneous layer beneath the dermis. The subcutaneous layers are fat cells and connective tissue that carry the blood vessels and nerves. It is located below the epidermis and the dermis, in that order, and is the third and final layer and consists primarily of loose connective tissue and lobules of fat.
Why are tendons epithelial tissue and ligaments avascular What are the advantages of this tissue being avascualr?
tendons are not made of epithelial tissue, they are made of connective tissue. Epithelial tissue secretes via ducted or ductless glands. Ligaments are also composed of connective tissue. Any tissue that "connects structures" are generally composed of connective tissue. Ligaments connect bone to bone and there is a debate about the avascularity of ligaments.
A muscle is made of many cylindrical muscle fibers. The many fibers are bound together with connective tissue. Nerves and blood vessels (arteries and veins) run along the connective tissue. In every muscle fiber, there are thick filaments, made of the protein myosin, and thin filaments, made of the protein actin. The filaments overlap to form the sarcomere, a part of the muscle. Myosin has little heads that attach to actin, and pull on it…
Skin is differentiated into: * Epidermis * Dermis and * Hypodermis # Epidermis: It is made up of stratified squamous epithelium in which keratiocytes, melanocytes, Langerhans cells and Merkel cells are seen. # Dermis: It mostly consists of connective tissues and contains blood vessels, sebaceous glands, sweat glands, hair follicles, apocrine glands and lymphatic vessels. # Hypodermis: is made up of adipose tissue.