Definition of

Tissue

Wound

Tissue refers to what is related to a tissue.

Tissue is an adjective that is used in the field of biology to refer to that linked to a tissue . It should be remembered that tissues are sets of cells that act in a coordinated manner to develop a certain function.

We usually talk about tissue damage to refer to some type of injury or injury suffered by the skin . A cut, a bruise or a burn, in this sense, are tissue damage that people can experience.

Tissue repair , therefore, consists of the process that is carried out to correct tissue damage. Due to the complexity of tissues, where different types of cells interact, tissue repair can be very complicated, depending on the type of damage.

Use of the notion in different contexts

Tissue engineering , on the other hand, is an academic specialization that can be taken at different universities. This is a master's degree aimed at experts in health sciences, such as medicine and pharmacy .

A class of protein found in the plasma membrane is called tissue factor . This glycoprotein is found in the walls of fibroblasts and other groups of cells. Typically, the tissue factor is not in contact with the blood flow; When a vessel ruptures, however, it is possible for tissue factor and blood to come into contact.

Tissue respiration , finally, is a gas exchange that takes place between the body's tissues and the blood. The cells are surrounded by blood that carries oxygen and thus the exchange known as titration respiration is achieved.

surgical intervention

A tissue transplant is a surgical procedure.

tissue transplant

When considerable damage occurs to a tissue, medicine often resorts to transplantation, although there is always the risk of rejection, a process that consists of the attack on the transplanted organ or tissue by the immune system of the recipient. Our body offers us protection against certain substances that it considers harmful, including toxins and microorganisms. They are covered with proteins called antigens , and their detection triggers the aforementioned attack.

Although a tissue transplant is always performed with the aim of benefiting the recipient, the body can react in a hostile manner by not recognizing the tissue as its own : if the antigens of the new cells are taken as "incompatible", then the procedure can fail. To avoid this, professionals must compare the donor's antigens with those of the recipient, to perform the transplant only if they consider them compatible.

Different procedures

There are various well-defined types of tissue transplantation, some of which are set out below. Skin allografts , for example, are used to treat extensive burns or certain diseases that cause large amounts of skin loss. Through this type of procedure it is possible to cover large surfaces to reduce the loss of proteins and fluids, so that infections do not proliferate. Allografts can also be used to make certain small wounds heal faster.

Cartilage transplantation , for its part, is used by doctors to correct certain congenital auricular or nasal defects in children, and also to treat serious injuries in adults, such as severe osteoarthritis. It is believed that the cartilaginous matrix that surrounds the chondrocytes, that is, the cells found in the cartilage, protects them from cellular attack, and therefore the probability of tissue rejection is not high.

When there are serious bone defects, a bone transplant can be performed to reconstruct the affected parts; This is common in certain cases of cancer. Although the donor cells do not survive, the allograft matrix can generate new colonization by the recipient's osteoblasts to lay down new bone.