Tissues are groups of cells with a common structure (form) and function (job). Learning Objectives. Muscle and nervous tissues are both richly vascularized. It possesses the ability to initiate and transmit the nerve impulse. A nerve consists of a neuron and glial cells. It is made up of thin and elongated cells called muscle fibers. Legal. Epithelial Tissue: Epithelial tissue line the cavity and surfaces of organs and blood vessels throughout the animal body. There are four main tissues in the body – epithelium, muscle, connective tissue and nervous tissue. There are three different types of muscle cells: skeletal, smooth, and cardiac. Other glial cells support the nutritional and waste requirements of the neuron. Its main components include: Neurons – These are the structural and functional unit of nervous system. Muscle and nervous tissues are sometimes called composite tissues because they contain small amounts of areolar tissue along with their own muscle or nerve cells. The 3 types of muscle tissue are cardiac, smooth, and skeletal. The various muscles of our bodies serve as the engines or powerhouses of the body and are so constructed to provide speed and power. Nervous tissue is composed of neurons and supporting cells called neuroglia, or ” glial cells.” There are six types of neuroglia. October 23, 2013. Muscle tissue contracts forcefully when excited, providing movement. Nervous Tissues. Epithelial Tissue: Epithelial cells are … They differ by the presence or absence of striations or bands, the number and location of nuclei, whether they are voluntarily or involuntarily controlled, and their location within the body. This tissue is what makes up the body’s nervous system, which is split into the central nervous system and the peripheral nervous system. Skeletal muscles are voluntary muscles; a person has complete control of their movement. Also, muscle is … 33.2D: Muscle Tissues and Nervous Tissues, [ "article:topic", "authorname:boundless", "showtoc:no" ], https://bio.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fbio.libretexts.org%2FBookshelves%2FIntroductory_and_General_Biology%2FBook%253A_General_Biology_(Boundless)%2F33%253A_The_Animal_Body%253A_Basic_Form_and_Function%2F33.2%253A__Animal_Primary_Tissues%2F33.2D%253A_Muscle_Tissues_and_Nervous_Tissues, 33.2C: Connective Tissues: Bone, Adipose, and Blood, http://cnx.org/content/m44731/latest...ol11448/latest, http://cnx.org/content/m44731/latest...e_33_02_03.jpg, http://cnx.org/content/m44731/latest...33_02_01ab.jpg, http://cnx.org/content/m44731/latest...e_33_02_02.jpg, http://cnx.org/content/m44731/latest...e_33_02_04.png, http://cnx.org/content/m44731/latest...e_33_02_06.jpg, http://cnx.org/content/m44731/latest...e_33_02_07.jpg, http://cnx.org/content/m44731/latest...e_33_02_10.jpg, http://cnx.org/content/m44731/latest...e_33_02_11.jpg, http://cnx.org/content/m44731/latest...e_33_02_09.jpg, http://cnx.org/content/m44731/latest...3_02_12abc.jpg, http://cnx.org/content/m44731/latest...e_33_02_13.jpg, Describe the structure and function of nervous tissue; differentiate among the types of muscle tissue. Epithelial tissue, small blood vessels, space between muscle, lymphatic vessels and nerve fibers are some of those structures. Also Read: Muscular Tissue. Nervous tissues:They are made of cells specialized to receive and transmit electrical impulses from specific areas of the body and to send them to specific locations in the body organized into structures called nerves. Cardiac muscle is found only in the heart. Stimulation of these cells by somatic motor neurons signals the cells to contract. The components of connective tissue in this type of tissue are more or less equally divided. Muscle tissue is subdivided into three broad categories: skeletal muscle, cardiac muscle, and smooth muscle. Smooth muscle fibers are located in walls of hollow visceral organs, except the heart, appear spindle-shaped, and are also under involuntary control. Spindle shaped cells with central nuclei, no striations, cells arranged closely to form sheets. Connective tissue is derived from the third germ layer, the mesoderm, which is the same source of origin of muscle tissue. It controls the movement of an organism. Watch the recordings here on Youtube! The walls of blood vessels, the tubes of the digestive system, and the tubes of the reproductive systems are composed primarily of smooth muscle. The three types of muscle tissues are such as skeletal, smooth, and cardiac. Of all the different tissue types (muscle, epithelial, connective, and nervous), muscle tissue is the most abundant tissue in most animals, including in humans. The cytoplasm in the muscle fibers is called sarcoplasm. Nervous tissue is composed of nerves containing neurons, specialized cells. Epithelial tissue is a type of animal tissue, consisting of closely aggregated polyhedral cells connected firmly to one another in the form of cellular sheets that line the interior of hollow organs and cover the body surface.. Describe the structure and function of nervous tissue; differentiate among the types of muscle tissue. Like electrical circuits, the nervous system transmits signals … Tissue in the central nervous system can be found in the brain and spinal chord. The main cell of the nervous system is the neuron. Muscle and nervous tissues are both richly vascularized. 1) Identify the four basic tissue types.-Epithelial-Muscle-Connective-Nervous 2) Explain the difference between simple and stratified tissues.Simple: one cell layer thick Stratified: multiple cell layers 3) Which tissue type is specifically found in the Respiratory Tract? Inside the cytoplasm, granules (Nissl bodies), mitochondria, golgi complex, lysosomes, and other cell organelles are present. The answer to your question could fill a Histology textbook. 2. Some of the glial cells are phagocytic, removing debris or damaged cells from the tissue. Cells in epithelial tissue or epithelium (epithelia; plural) are arranged in continuous sheets, in either single or multiple layers. Skeletal vs Cardiac Muscle. Smooth muscle cells, spindle shaped with only one nucleus, contract involuntarily to push food through the digestive tract and blood through blood vessels. Muscular tissue is a specialized tissue in animals which applies forces to different parts of the body by contraction. Skeletal muscle is found attached to bones. Helps movement of the egg and embryo in … This line, an intercalated disc, assists in passing electrical impulses efficiently from one cell to the next while maintaining the strong connection between neighboring cardiac cells, allowing the cardiac muscle cells to synchronize the beating of the heart. OpenStax College, Biology. Like in any other cell, the cell body is responsible for controlling metabolic activities. Skeletal muscle cells can contract by the attachment of myosin to actin filaments in the muscle, which then ratchets the actin filaments toward the center of the cells. Tissues - Epithelium, Muscle, Connective Tissue and Nervous Tissue (Histology) Tissues are groups of cells with a common structure (form) and function (job). Nervous tissue has two main functions: sensing stimuli and sending impulses to different parts of the body as a response. The overlapping region in each cell forms finger-like extensions in the cell membrane.These structures are called as intercalated disks.The structure of the intercalated disk forms gap junctions and desmosomes between the two cells, allowing the passage of electrochemical signals between … Function: 1. The heart is composed of a specific kind of muscle tissue known as cardiac muscle. As nouns the difference between tissue and muscle is that tissue is thin, woven, gauze-like fabric while muscle is (uncountable) a contractile form of tissue which animals use to effect movement. There are four basic tissue types defined by their morphology and function: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. It mainly comprises the nucleus and cytoplasm. The branches join at special cellular junctions called "intercalated discs.". Four are found in the central nervous system, while two are found in the peripheral nervous system. Cells make tissues and tissues make an organ, and different organs present in the body make an organ system. October 17, 2013. These muscle cells are relatively long and have multiple nuclei along the edge of the cell. What is the difference between skeletal and cardiac muscles? Cardiac muscle cells, found only in the heart, are striated and branching (with one nucleus); they are joined by intercalacted discs which allow the cells to synchronize the beating of the heart. The major part of the cell enclosed by a plasma membrane is the cell body, also known as the soma. Age: 7th-12th Objectives: Students will be able to identify the fours basic body tissues, their characteristics and function. Contractions of smooth muscle move food through the digestive tracts and push blood through the blood vessels. Simple columnar. Muscle tissue contains myocytes, which have completely different structure than neurons. Muscle and nervous tissues are sometimes called composite tissues because they contain small amounts of areolar tissue along with their own muscle or nerve cells. Skeletal muscle is under voluntary, somatic nervous system control and is found in the muscles that move bones. Cardiac muscle is not under voluntary control, but is influenced by the autonomic nervous system to speed up or slow down the heart beat. The key difference between connective tissue and muscle tissue is that the main function of connective tissue is to provide a connection between tissues, organs and other body parts while the main function of the muscle tissue is to carry out movements of the body.. A tissue is a group of cells which have a common structure and function in our body. Let us compare the two in terms of control, location, and function. For more information contact us at info@libretexts.org or check out our status page at https://status.libretexts.org. Cardiac muscle cells are located in the walls of the heart, appear striated, and are under involuntary control. Xylem tissue transports water and nutrients from the roots to different parts of the plant, and also plays a role in structural support in the stem. Nervous Tissue. October 17, 2013. 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