Blood vessels, nerves and muscles, all have a loose connective tissue wrapping. Loose connective tissues are present all over the body, where support and elasticity both are needed. The elasticity, flexibility and strength of the connective tissues are due to fibres. The loose connective tissue contains cells, fibers, and ground substances in roughly equal parts. (ii)vessels- A vessel element (trachea) is one of the cell types found in xylem, the water-conducting tissue of plants. Describe the structure and function of different types of epithelial tissues.

It is the commonest type of connective tissue in the human body and it is found in most organs of the body and in other tissues. Loose connective tissues are further classified into areolar, adipose and reticular tissue. There are various kinds of cells present in different types of connective tissues. The function and types of connective tissues depend on the nature of the intercellular substance present. Among the cells, the fibroblasts are the predominant cells; other types of connective tissue cells are also present, along with nerves and blood vessels. Neurons do not contain tendons as they are connective tissues that join skeletal muscles to bones.

Types of Loose Connective Tissue

There is a central marrow cavity made up of spongy tissues (marrow). Brown adipose tissue is found in infants, polar bears, penguins and other animals found in cold regions. It contains randomly distributed fibres, fibroblasts, mast cells and macrophages.

Specialised Connective Tissue

Why are xylem and phloem called complex tissues? Draw well labelled diagrams of various types of muscles found in human body. The skin, which protects the body, is also made of squamous epithelium. Skin, the lining of blood vessels, alveoli of the lung, kidney tubules etc are made of epithelial tissue. Epithelial cells vegas casino app are the protective coverings that line most organs and cavities of our body.

Reticular tissue is a specific form of connective tissue predominating in several regions with high cellular content. Fibroblasts, known as reticular cells, are the cells that produce reticular fibres. Scleroderma- It is characterised by thickening and hardening of the connective tissue. The immune system of the body starts attacking its own tissues.

Properly title & format your post.

Most of the cartilage is replaced by bones in adults, however, it supports some structures in adults too. Examples of dense regular tissue are tendons and ligaments. The collagen fibres are present between the parallel running bundles of fibres. Their main function is to support and transmit mechanical forces. It supports the internal framework of organs such as liver, lymph nodes and spleen.

Loose Connective Tissue Functions

• Epithelial tissues
• Yes, small amounts of adipocytes are present in the areolar tissue.
• Give one example of each type.
• Which muscles act involuntarily?
• These are dead tissues which have thick cell wall due to deposition of lignin.

(iii) xylem parenchyma- xylem parenchyma. Vessel elements are found in flowering plants Cork protects the plants from infection and mechanical injury. Walls of cork cells are thickened with suberin which is fat. Cork cells are compactly arranged dead cells and they lack intercellular spaces.

Where is the reticular connective tissue found?

This type of tissue is present in the dermis of the skin. White adipose tissues protect kidneys and are also found at the back of the eye, in the hump of camels, blubber of whales, etc. A group of cells along with intercellular substances that perform a specific function is called tissue. (c) Parenchyma and collenchyma are two simple permanent tissues, whereas xylem and phloem are two complex permanent tissues. The basic differences between meristematic and permanent tissues of plants are tabulated below

It consists of relatively unspecialised cells with thin cell walls. Parenchyma is the most common simple permanent tissue. This minimizes the effect of heat and reduces the loss of water. (d) Sieve tube cells They have two functions, storage and lateral food conduction.

Are there adipocytes in areolar tissue?

Except for phloem fibres, other phloem cells are living cells. Phloem fibres possess narrow lumen and they are thick-walled elongated spindle-shaped dead cells. The muscular tissue which functions throughout the life continuously without fatigue is Areolar tissue fills the space inside the organs and supports internal organs and helps in the repair of tissue. Cells in these tissues are filled with fat globules. Renal tubules and corpuscles in the kidney are formed by Cuboidal epithelium tissue.

What is Areolar Connective Tissue?

Regardless of the type, all epithelium is usually separated from the underlying tissue by an extracellular fibrous basement membrane. Epithelial cells are the thin protective coverings that line most organs and cavities within the body. Draw diagram of each type of epithelial tissue. (b) The lining of blood vessels, lung alveoli and kidney tubules are all made up of epithelial tissue. Mast cells are found in areolar tissue. Which of the following cells is found in the cartilaginous tissue of the body?

Learn about different types of tissues and their types, like epithelial tissue, connective tissue and muscular tissue. The adipose connective tissue is mainly located under the skin, between the muscles, intestines and around the heart. Areolar tissue is the most common type of loose connective tissue that is widely distributed throughout the body. Sometimes, the fat cells are present in large amounts for storage purposes and then the loose connective tissue is referred to as adipose tissue.

All in all, the loose connective tissues are of three types, namely, areolar tissue, adipose tissue and reticular tissue. Like areolar connective tissue, reticular connective tissue has only reticular fibres in its matrix, creating an exemplary network along which distributed fibroblasts (reticular cells) are located. In a number of organs, including lymph nodes and bone marrow, reticular connective tissue serves as a framework for other cells. Areolar connective tissue is found between the skin and muscles, around blood vessels and nerves and in the bone marrow. Adipose tissues are loose connective tissues that are made up of fat cells called adipose cells or adipocytes. Another type of loose connective tissue is also made up of reticular fibres of type III collagen, referred to as reticular connective tissue.

• The epidermis is the structure that protects the plant body against the invasion of parasites.
• The epithelium is usually separated from the underlying tissue by an extracellular fibrous basement membrane.
• The loose connective is well vascularized and has no specific constant form.
• Collagen fibres are flexible and have high tensile strength (comparable to steel).
• (d) Cells of striated muscles are multinucleate and unbranched

A person met with an accident in which two long bones of hand were dislocated. Their main function is absorption and secretion. They facilitate movement across the epithelial barrier. Columnar epithelium forms the lining of the stomach, small intestine and colon, forming the mucous membrane.

As the name suggests, the connective tissue functions to connect the cells of muscles and nerves. The areolar connective tissue appears different in various organs and may even appear compact when the areolar tissue of the skin is viewed with a microscope making it difficult to be distinguished from dense irregular connective tissue. Areolar connective tissue is the type of tissue which connects and surrounds different organs in the human body. The areolar connective tissue is a type of connective tissue that is present throughout the human body.

Frequently Asked Questions on Areolar Connective Tissue

Skin epithelial cells are arranged in many layers to prevent wear and tear. Simple squamous epithelial cells are extremely thin and flat and form a delicate lining. The epithelium is usually separated from the underlying tissue by an extracellular fibrous basement membrane. It is obvious that anything entering or leaving the body must cross at least one layer of epithelium. Cells in the epithelial tissue are tightly packed and form a continuous sheet.

Skeletal muscle, smooth muscle and voluntary muscles work as and when required. Heart muscles are cylindrical, branched and uninucleated which shows rhythmic contraction and relaxation throughout life. Which of the following helps in repair of tissue and fills up the space inside the organ?

It acts as a shock absorber and helps in maintaining body temperature in colder environments. They are found between many organs as a filling and act as a shock absorber and reservoir for salt and fluid. They are spindle-shaped and present between collagen fibres. Reticulate fibres consist of collagen and glycoproteins. Elastic fibres form a network and can be stretched like a rubber band. Collagen fibres are flexible and have high tensile strength (comparable to steel).

Parenchyma cells are located in the soft parts of the plants such as pith and cortex. Living tissues with thin cell wall with central vacuole and dense cytoplasm. Yes, small amounts of adipocytes are present in the areolar tissue. The brown adipose tissue is found in newborn organisms where it serves the purpose of generating heat or thermogenesis. If you find a random arrangement of tissue under the microscope with spaces, it is most likely the areolar tissue you are viewing. It contains the random distribution of much ground substance, little collagen, and a variety of cells together with blood vessels that are numerous.

(e) ———gives flexibility in plants. (c) Cells of cork contain a chemical called——— (d) Husk of coconut is made of ———tissue. (b) ———have guard cells. Fill in the blanks (a) ———are forms of complex tissue. Epidermal tissue forms a continuous layer which helps to avoid mechanical stress.