Cells usually make up every part of tissues; tissues help to make the organs, organs leads to system and system leads to living beings. Cells have diverse kinds that make up distinctive tissues. The tissue is a cluster of physically connected cells with related intercellular substances and is specialized for specific functions. This specialization, even as prompting expanded proficiency of activity by the living being handles the management of a particular function like digestion to some degree confounded. Connective tissue and epithelial tissue are the two kinds of tissues. They work in close association with one another, frequently lying together around and inside of organs and frameworks. In this article, we will explain the differences between these kinds of tissue.

Epithelial Tissue

Epithelial tissue, one of the four essential kinds of animal tissue, exists in the cavities, surfaces of veins, and organs all through the body. It has three chief shapes: squamous, cuboidal, and columnar. These can be organized in a single layer of cells known as the simple epithelium, or in layers of two or more cells known as stratified. All organs are comprised of epithelial cells. Epithelial cells help in transcellular transport, secretion, protection, selective absorption, and sensing. Epithelial layers contain no blood capillaries, so they must get food through the dissemination of substances from the underneath connective tissue, with the help of the basement membrane.

Connective Tissue

Connective tissue is also one of the four kinds of natural tissue that join, support, or separate distinctive sorts of tissues and organs in the body. Connective tissue is present in different tissues all around in the body, in addition to in the nervous system. In the nervous system, the external layers, the meninges, which cover the cerebrum and spinal cord, all are made up of connective tissue. All connective tissue distant from blood and lymph comprises three key segments: fibers, ground substance, and cells or lymph. Blood and lymph do not have a fiber segment. The cells of connective tissue incorporate fibroblasts, mast cells, adipocytes, macrophages, and leucocytes.

Epithelial Tissue VS Connective Tissue

  • Structure:

Epithelial tissue is comprised of cells and a small quantity of intercellular matrix.

Connective tissue is comprised of cells and a lot of intercellular matrices.

  • Arrangement:

Cells in epithelial tissue are arranged in multiple or even in single layers.

In connective tissue, Cells are not appropriately arranged as they are mostly spread in the matrix.

  • Function:

Epithelial tissue helps to make the outer and inner surface of different organs. This tissue goes about as a boundary or hurdle that manages the materials that enter and leave the surfaces.

Connective tissues help to tie, support, and protect different organs and tissues.

  • Blood capillaries:

Epithelial tissue is surrounded with no blood capillaries, and they acquire the nutrients from the cellar membrane.

Connective tissues are encompassed by blood capillaries, which is the place they obtain the nutrients.

  • Location-related to basement membrane:

The epithelial tissues are located over the basement membranes.

The connective tissue is located underneath the basement membrane, which is also known as lamina propria.

  • Made from:

Epithelial tissues are made up of mesoderm, ectoderm, and endoderm.

Connective tissues are made up of the only mesoderm.

  • Found:

Epithelial tissue is founded in glands, mucous membrane, skin, organs like the kidney and lungs.

Connective tissue is founded in bone, nerves, muscles, adipose, ligaments, cartilage, and tendons.

  • Bound by:

Desmosomes, special proteins, and hemidesmosomes bound epithelial tissue.

Connective tissues are bounded by blood capillaries, collagen fibers, and elastic-like material.

  • Types:

There are two types of epithelial tissue:

  • simple epithelium
  • stratified epithelium
Types of Epithelium Tissue
Simple Epithelium The single-layered cells in which all the cells are attached to the basement membrane are called the simple epithelium.
1.Simple squamous epithelium         ·        It facilitates filtration and the diffusion of small molecules and gases.
2.Simple cuboidal epithelium         ·        The cube-like cells help in the absorption and secretion of molecules.
3.Simple columnar epithelium         ·        The column-like cells help in the absorption and secretion of enzymes and mucous.
4.Pseudostratified columnar epithelium

 

         ·        It helps in the secretion of mucous as a ciliated tissue that moves mucous.
Stratified Epithelium The multiple-layered cells in which only the basal layer is linked to the basement membrane is called the stratified epithelium.
1.Stratified squamous epithelium                                                          ·        It helps in protection against abrasion.

·        It helps in covering and protecting the body parts.
2.Stratified cuboidal epithelium         ·        It is a protective tissue, found in some ducts and glands.
3.Stratified columnar epithelium         ·        It provides secretion and protection of organs.
4.Transitional epithelium         ·        It also called urothelium tissue, which can stretch and expand the urinary organs.

Simple epithelium includes simple squamous, simple cuboidal, simple columnar, pseudostratified columnar, whereas stratified epithelium includes stratified squamous, stratified cuboidal, stratified columnar, transitional.

There are six types of connective tissue, which include:

Types of Connective Tissue
Loose connective tissue         ·        It keeps organs in place.

·        It connects epithelium tissue to other tissues.
Adipose tissue         ·        It, in the form of fat, stores energy.

·        It reserves nutrients and gives protective padding.
Blood         ·        The blood cells carry oxygen to all body parts.
Fibrous connective tissue         ·        It is made of many collagen fibers.

·        It supports its surrounding tissues, bones, and organs.
Cartilage         ·        It is present in the human nose, joints, and long bones.

·        It provides support and helps in absorption to organs and bones.
Bone         ·        It stores minerals, protects vital organs, enables body movements, provides the internal support, and attachment sites for tendons and muscles.

Conclusion

From the above article, we come to know that there is a smaller amount of intercellular matrix in epithelial tissue but more in connective tissue. In epithelial tissue, cells are in single or multiple layers, whereas cells are scattered in connective tissue. Epithelial tissue helps to make the outer and inner surface of different organs; however, connective tissues help to tie, support, and protect different organs and tissues. No blood vessels are in epithelial tissue but exist in connective tissue. The epithelial tissues are located over the basement membranes, although connective tissue is located underneath the basement membrane. Epithelial tissues are made up of mesoderm, ectoderm, and endoderm, but connective tissues are made up of the only mesoderm. There are two types of epithelial tissue but six of connective tissue. Both types of tissues are essential to our body as it maintains the functioning of body parts for a lifetime.