Why is blood considered a connective tissue?
Bone, blood, cartilage + other connective tissues!
This is a dense irregular connective tissue example. The dermis is the layer of skin that lies under the epidermis. Collagen fibers and fibroblasts are present. A tiny capillary can also be seen at the top of the image (not labeled) – can you spot it?
A thick woven network of collagenous (and some elastic) fibres in a viscous matrix makes up this form of tissue. It can be present in joint capsules, the connective tissue that surrounds muscles (muscle fascia), and the skin’s dermis. It has a high impact resistance.
Collagen fibers are tightly packed and arranged in parallel in this type of tissue. Ligaments (which bind bone to bone at joints) and tendons contain this form of tissue (connections between bones or cartilage and muscle). These are extremely resistant to axially loaded tension forces while still allowing for some stretch.
Q4 why do we consider blood as a connective tissue
Bone, also known as osseous tissue, is a connective tissue that contains a significant amount of two types of matrix material. The organic matrix, which includes some collagen and elastic fibers, is structurally similar to other connective tissues. The tissue gains strength and resilience as a result of this. Mineral salts, mainly calcium, make up the inorganic matrix, which gives the tissue its hardness. The tissue splits if there isn’t enough organic material in the matrix; the tissue bends if there isn’t enough inorganic material in the matrix.
Osteoblasts, osteocytes, and osteoclasts are the three groups of cells that make up bone. Osteoblasts are responsible for the growth and remodeling of bone. They deposit bone material into the matrix and, once the matrix has surrounded them, they continue to live as osteocytes with a lower metabolic rate. Osteocytes are present in bone lacunae and help to keep the bone healthy. Osteoclasts are bone remodeling cells that break down bone to gain access to calcium contained in tissues and release it into the bloodstream. Osteoclasts are typically located on the tissue’s surface.
Why do we consider blood as a connective tissue?
Blood is classified as a connective tissue for two reasons: (1) it has the same embryological origin (mesodermal) as the other connective tissue types, and (2) it binds the body systems by transporting oxygen, nutrients, hormones, and other signaling molecules while also eliminating waste. Enucleated erythrocytes, or red blood cells, and nucleated leukocytes, or white blood cells, are two types of cells present in circulating blood. In blood smears, we’ll look at their histology. RBCs are small (7 um) cells without a nucleus that make up erythrocytes (red blood cells). They stain red with eosin and have a lighter staining core due to their concave form. The photos below show a number of examples. Leukocytes are white blood cells (white blood cells) WBCs are classified into two groups: (1) granular leukocytes with distinct cytoplasmic granules, such as neutrophils, eosinophils, and basophils, and (2) agranular leukocytes, such as monocytes and lymphocytes.
Blood connective tissue
More medical references are required for evidence, or the article relies too heavily on primary sources. Please go over the contents of the article and, if possible, add the necessary references. Material that is unsourced or improperly sourced can be questioned and excluded. Locate sources: JSTOR – “Connective tissue” – news, newspapers, books, and scholars (June 2020)
Along with epithelial tissue, muscle tissue, and nervous tissue, connective tissue is one of the four basic forms of animal tissue. The mesoderm is where it all starts. Everywhere in the body, including the nervous system, connective tissue exists between other tissues. The three outer membranes (meninges) that surround the brain and spinal cord in the central nervous system are made of connective tissue.
Fibers (elastic and collagenous fibers), ground substance, and cells are the three main components of connective tissue. Since they lack the fiber portion, not all authorities classify blood or lymph as connective tissue. Everyone is submerged in the body water. Fibroblasts, adipocytes, macrophages, mast cells, and leucocytes are connective tissue cells.