Four Types Of Tissue Research

Our bone tissues are made of a much harder substance than the cartilage, but they can be worn away by friction. They are tough on the outside, but on the inside they have a sponge-like design that helps to reduce the weight while retaining strength. They are designed to maintain the body’s structure and support the body’s movement and are used to protect weaker tissues, such as the brain, lungs and heart.

The three types of muscles in your body are smooth muscles which is in your organs like your stomach, cardiac muscles which is in your heart, and skeletal muscles which is in muscles like your bicep.

The nervous system is made up of basic units called neurons. The main role of the neurons is to receive, integrate and transmit information throughout the body. There are some neuroglial cells found in nervous system aswell which provide support to the neurons by giving protection and nourishment Neurons have nerve processes that looks like finger like projections extended from the nerve cell body. They also contain axons and dendrites which enable them to transmit signals throughout the body. Normally, axon carry signals away from the cell body and dendrites carry signals toward the cell body according to Regina Bailey (2013). Neurons have three different shapes: bipolar, unipolar and multipolar where bipolar has two neuronal processes coming out of the cell body, unipolar has only one neuronal process coming out of the cell body and multipolar has many neuronal processes coming out of the cell body.

Neurons, nerve cells, have three basic parts: the cell body, dendrites, and axon. Neurons transmit signals to other nerve cells and throughout the body. They are simple components in the nervous system. The cell body includes the nucleus, which is the control center of the neuron. The dendrite branches off the cell body and receives information. The axon is attached to the cell body and sends information away from the cell body to other cells. When the axon goes through myelination, the axon part of the neuron becomes covered and insulated with fat cells, myelin sheath. This increases the speed and efficiency of information processing in the nervous system. Synapse are gaps between neurons, this is where connections between the axons and dendrites.

Tissues are groups of cells, which are placed together to achieve a common function. There are four main types of tissue: Epithelial, connective, muscle and nervous. Most of these tissues are found in our bodies, however the epithelial tissue is covered all over the surfaces of the body.

Muscle tissue - Muscle cells are the contractive tissue of body that produce force and cause motion within internal organs. Muscle tissue is separated into three different categories: visceral or smooth muscle that are located in the inner linings of organs and skeletal

The second type of tissue found in the body is connective tissue. They lie beneath the epithelial tissue helping to connect different part of the internal structure, the cells are more widely separated from each other then in epithelial tissue. The intercellular substance known as the matrix is found in considerably large amounts. Within the matrix there are usually fibres which may be a jelly like consistency or dense and rigid depending on the type, function and positioning of the tissue. Theses fibres form a supporting system for cells to attach to. The major functions of connective tissue are to transport materials, give structural support and protection. The types of connective tissue that will be explained are blood, bone, cartilage, bone, areolar tissue and adipose tissue.

The Nerve tissue is a group of cells which react to, many different types of stimuli. They transmit messages throughout the body which can include things such as temperature, pain, and pressure.

There are three types of muscle tissue: skeletal, cardiac and smooth muscle. Skeletal muscle is attached to bones and helps with movement. Cardiac muscle is found the heart helping the heart to contract and pump blood through an organism. Smooth muscle lines the walls of organs in the digestive and urogenital tracts.

Smooth muscles are found in the skin, internal organs, reproductive system, major blood vessels, and excretory system. Skeletal muscles are composed of long fibers surrounded by a membranous sheath, the sarcolemma. Since the Skeletal muscles are under control by whom ever they belong to are called voluntary muscles. This muscle is attached to two or more bones which are then attached to the skeleton by tendons. For example, head and neck muscles; contraction of these muscles produces facial expressions and head movements. They are also responsible for speech and swallowing. Skeletal muscles are the main muscles which move your body. Muscles nearly always work in coordinated groups; contraction of one muscle is accompanied by relaxation of another, while other muscles stabilize nearby joints. Then the last of the muscle types is the Cardiac Muscle or the involuntary muscles. Cardiac muscles are not under conscious control they do not react by a persons decision or movement. and are connected to the nervous system which are stimulated by autonomic impulses. Cardiac muscles are found in your internal organs like the heart or the intestine. For example; they include muscles that propel food through the intestine and those that control sweating and blood pressure.

The neurons have a pronounced cell body called the neurosoma. Dendrites are extensions that branch from the neurosoma to receive messages and communicate those messages to the neurosoma. Neurosoma also have an axon (nerve fiber) that extends from the cell body that sends out signals to other cells. Glial cells transmit messages only short distances. They provide protection and support to the nervous system.

The three main types of muscle within the human body are smooth muscle, cardiac muscle and skeletal muscle. Skeletal muscle is the only type which is under voluntary control, and attach to bones in order to move the skeleton [1]. The body contains many muscles, each responsible for moving a different aspect of the skeleton. The Biceps brachii and the triceps brachii are two main muscles located in the upper limb.

The four types of tissues are the Epithelial tissue, the epithelial tissue forms sheets that cover or line the body. Connective tissue provides structural and functional support. Muscle tissue contracts tissue to produce movement. The Nervous tissue senses, conducts, and processes information.

* Smooth muscle is throughout the body, including in visceral (internal) organs, blood vessels, and glands. Like cardiac muscle,

Neuron (Greek.. Νεῦρον = fiber nerve) is the structural and functional unit of the nervous system, obtain to an important class of highly specialized cells , able to receive, absorb, process, transfer and respond information using electromagnetic signals (nerve impulses). Neuron as the basic unit of the nervous tissue was described in 1835 by Jan Evangelista Purkynije, the term neuron was established by Heinrich Wilhelm Waldeyer and the concept of neurons as the basic structural functional unit of the nervous system has been developed by Santiago Ramon y Cajal in the early 20th century. Y Cajal suggested that neurons are cells which communicate with one another (neuron doctrine). They communicate with nerves, muscles, or gland. Depending on these impulses they can be classified as afferent=sensitive neurons (bring impulses from receptors to the appropriate centers in the CNS) , efferent=motor neurons (lead to excitation of CNS effectors such as muscles and interneurons), associative neurons (located in the CNS, they integrate the data provided by the sensory neurons and send them to motor neurons) .This cell has a cell body, soma (center of cell metabolism, receives impulses , integrates and transmits information, contains protoplasm (cytoplasm, nucleus and organelles (ESR active ribosomes , Golgi apparatus )), one axon (usually long process of a neuron , adapted for the excitation and the information from the cell body) and many dendrites (short, branched processes of