Connective Tissues Overview

<p>Adipose tissue (D)</p> Signup and view all the answers

<p>Fibrosis (C)</p> Signup and view all the answers

<p>Both ATP and calcium (D)</p> Signup and view all the answers

<p>Collagen fibers (D)</p> Signup and view all the answers

<p>Glycosaminoglycans (B)</p> Signup and view all the answers

<p>Elastic fibers (C)</p> Signup and view all the answers

<p>Formation of fibers (A)</p> Signup and view all the answers

<p>Type 2 (A)</p> Signup and view all the answers

<p>Providing a supportive framework for lymphoid tissue (B)</p> Signup and view all the answers

<p>Fibroblasts and smooth muscle cells (A)</p> Signup and view all the answers

<p>Highly vascularized with a ground substance for nutrient diffusion (A)</p> Signup and view all the answers

<p>Type 4 (D)</p> Signup and view all the answers

<p>Alveolar macrophage (D)</p> Signup and view all the answers

<p>Produce antibodies (D)</p> Signup and view all the answers

<p>Histamine and Heparin (B)</p> Signup and view all the answers

<p>Bone marrow (B)</p> Signup and view all the answers

<p>Mast cell (D)</p> Signup and view all the answers

<p>40 years (B)</p> Signup and view all the answers

<p>Engulf pathogens (D)</p> Signup and view all the answers

<p>Mucosal mast cell (D)</p> Signup and view all the answers

<p>Mesenchyme (C)</p> Signup and view all the answers

<p>Fibroblasts (D)</p> Signup and view all the answers

<p>Stem cells that can differentiate into various cell types (D)</p> Signup and view all the answers

<p>High density of collagen and elastin fibers (A)</p> Signup and view all the answers

<p>Fibrillar proteins and glycoproteins (D)</p> Signup and view all the answers

<p>Loose connective tissue has irregular fibers while dense has regular fibers (D)</p> Signup and view all the answers

<p>They play a role in immune response (C)</p> Signup and view all the answers

<p>Attracting water and maintaining hydration (C)</p> Signup and view all the answers

<p>Collagen fibers form parallel bundles to provide tensile strength in one direction. (D)</p> Signup and view all the answers

<p>Dense irregular connective tissue (A)</p> Signup and view all the answers

<p>Deep to skin, around organs like kidneys and eyes (B)</p> Signup and view all the answers

<p>Reticular connective tissue (A)</p> Signup and view all the answers

<p>Adipose tissue (A)</p> Signup and view all the answers

Connective tissues support, exchange metabolites, store energy, and participate in inflammation and wound healing.

Connective Tissues are mainly composed of extracellular matrix with embedded cells.

The non-cellular component of connective tissues, made mostly by the cells in the tissues.

The extracellular matrix includes fibers and ground substance, which differ between connective tissue types.

Provides structural support and strength to different parts of the body.

Embryonic connective tissue, giving rise to all other connective tissues.

Connective tissues are classified based on cell-to-fiber ratio, fiber arrangement, and cell origin.

Connective tissue with a high proportion of cells relative to fibers.

Connective tissue with a high proportion of fibers relative to cells.

Cells residing permanently in connective tissue, such as fibroblasts.

Cells present temporarily or moving through connective tissue, such as macrophages.

The non-cellular part of connective tissue, made up of fibers and ground substance.

Insoluble proteins in the ECM, like collagen and elastin, providing strength and flexibility.

The process where mast cells release granules containing histamine and other inflammatory mediators, triggered by allergens or other stimuli.

A gel-like component of the extracellular matrix, composed of water, salts, glycosaminoglycans, proteoglycans, and glycoproteins.

Large, negatively charged carbohydrates that attract water, contributing to the viscosity and consistency of the ground substance.

Collagen fibers are the strongest and most abundant protein in the extracellular matrix, providing tensile strength.

The cell responsible for producing and maintaining collagen fibers in connective tissues.

Macrophages are found in various tissues and organs, including connective tissue, liver, lung, lymph nodes, spleen, bone marrow, serous cavities, bone, central nervous system, skin, and synovia.

Plasma cells are immune cells that produce and release antibodies, proteins that help fight infections.

Plasma cells are oval-shaped cells with an eccentric nucleus and heterochromatin (dark, clumped DNA).

Mast cells store histamine and heparin in granules, which are released during allergic reactions.

Mast cells are typically found near blood vessels and are abundant in connective tissues, skin, and the linings of the respiratory and gastrointestinal tracts.

Mast cells release histamine and heparin, which are important in the body's immune response, particularly in allergic reactions.

Mast cells are round or fusiform shaped cells with metachromatic granules of histamine and heparin.

Macrophages develop from monocytes, a type of white blood cell. Monocytes circulate in the blood, then mature into macrophages.

Consists of tightly packed, parallel bundles of collagen fibers, providing high tensile strength in one direction. Found in tendons and ligaments.

Has irregularly arranged collagen fibers, offering resistance to tension from various directions. Found in the dermis of skin, providing strength and flexibility.

Connective tissue composed primarily of fat cells (adipocytes). Located deep to skin, around organs, and in specific sites, providing insulation, cushioning, and energy storage.

Consists of a fine network of reticular fibers, supporting hematopoietic organs like the spleen, lymph nodes, and bone marrow.

Specialised connective tissue found in the umbilical cord, providing support and cushioning due to its gel-like consistency.

There are over 25 types of collagen, each with a specific function. Type 1 is found in bones, tendons, and skin. Type 2 is found in cartilage. Type 3 forms reticular fibers. Type 4 makes up the basement membrane. And Type 5 is present in blood vessels.

Collagen is produced by various cells, including fibroblasts in connective tissue, chondroblasts in cartilage, osteoblasts in bone, and smooth muscle cells in blood vessels. It is synthesized and then released into the extracellular space to form fibrils.

Gelatin is a protein derived from collagen. It is produced by boiling collagen, which breaks down the long collagen molecules into smaller units.

Elastic fibers are made of elastin, a protein that gives tissues flexibility. They are branched and form a network, allowing for stretching and recoil. They are found in ligaments, large arteries, and more.

Reticular fibers are thin, branched collagen fibers composed mainly of Type III collagen. They form a delicate network that provides support for lymphoid tissue and other organs.