Where is reticular tissue located

Reticular connective tissue X. The resolution of this image is so low that you can't see the reticular fibers very clearly. What you can do at this point when looking at a slide in lab is to find a region of the specimen where the cells are not too dense. Then, when you switch to a higher power, the reticular fibers will be easier to see.

Tug gently at your ear lobes, and notice that the lobes return to their initial shape. The external ear contains elastic cartilage. Bone is the hardest connective tissue. It provides protection to internal organs and supports the body. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone.

Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. Osteocytes , bone cells, are located within lacunae. The histology of transverse tissue from long bone shows a typical arrangement of osteocytes in concentric circles around a central canal Figure 4. Bone is a highly vascularized tissue. Unlike cartilage, bone tissue can recover from injuries in a relatively short time. Cancellous bone looks like a sponge under the microscope and contains empty spaces between trabeculae, or arches of bone proper.

It is lighter than compact bone and found in the interior of some bones and at the end of long bones. Compact bone is solid and has greater structural strength. Blood is a fluid connective tissues. Blood has two components: cells and fluid matrix Figure 4. Erythrocytes, red blood cells, transport oxygen and some carbon dioxide.

Leukocytes, white blood cells, are responsible for defending against potentially harmful microorganisms or molecules. Platelets are cell fragments involved in blood clotting. Some white blood cells have the ability to cross the endothelial layer that lines blood vessels and enter adjacent tissues. Nutrients, salts, and wastes are dissolved in the liquid matrix called plasma and transported through the body. Lymph contains a liquid matrix and white blood cells.

Lymphatic capillaries are extremely permeable, allowing larger molecules and excess fluid from interstitial spaces to enter the lymphatic vessels. Lymph drains into blood vessels, delivering molecules to the blood that could not otherwise directly enter the bloodstream. In this way, specialized lymphatic capillaries transport absorbed fats away from the intestine and deliver these molecules to the blood. Visit this link to test your connective tissue knowledge with this question quiz. Can you name the 10 tissue types shown in the histology slides?

Many connective tissues are comprised of ground substance, cells, and fibers. The ground substance in connective tissues is the amorphous gel-like substance. They are found in between cells, and composed largely of water, glycosaminoglycans, glycoproteins, and proteoglycans. The three main types of connective tissue fiber are collagen, elastic, and reticular fibers. A connective tissue that contains a large network of reticular fibers is called a reticular connective tissue.

It is an atypical connective tissue since it does not bind, connect, or network with any body cells. It is made up of blood cells and is surrounded by a nonliving fluid called plasma. Privacy Policy. Skip to main content. Organization at the Tissue Level. Search for:. Connective Tissue. Learning Objectives Describe the main characteristics and functions of connective tissue.

Key Takeaways Key Points Connective tissue is the most abundant and widely distributed of the primary tissues. Connective tissue has three main components: cells, fibers, and ground substance. Connective tissue is classified into two subtypes: soft and specialized connective tissue.

Major functions of connective tissue include: 1 binding and supporting, 2 protecting, 3 insulating, 4 storing reserve fuel, and 5 transporting substances within the body. Connective tissues can have various levels of vascularity. Cartilage is avascular, while dense connective tissue is poorly vascularized. Others, such as bone, are richly supplied with blood vessels. Key Terms extracellular matrix : Cells of the connective tissue are suspended in a non-cellular matrix that provides structural and biochemical support to the surrounding cells.

Types of Connective Tissue Connective tissues encompass a diverse array of tissue types that are involved in binding and supporting body structure and tissues. Learning Objectives Describe the diverse types of connective tissue. Key Takeaways Key Points The lymphatic system is a part of the circulatory system, comprising a network of conduits called lymphatic vessels that carry a clear fluid called lymph unidirectionally towards the heart.

Blood is considered a specialized form of connective tissue. In vertebrates, it is composed of blood cells suspended in a liquid called blood plasma. The primary tissue of bone, osseous tissue, is a relatively hard and lightweight composite material, formed mostly of calcium phosphate in the chemical arrangement termed calcium hydroxylapatite.