Glands are also composed of epithelial tissue. Epithelia forms boundaries. Most substances that move into or out of the body must pass through epithelial tissue. One surface of the
Compare and contrast the functions of each tissue type. Why do some areas of our body have stratified squamous epithelium and other areas have simple squamous epithelium? Epithelial tissues - It protects us, and it absorbs with the stomach and intestinal lining Connective tissues - Support, surround, connect other tissues, Protect organs, Transport fluids and dissolved materials Muscle tissues - Responsible for body movement, Moves blood, and food waste through body’s organs, Responsible for digestion. There are three types smooth, skeletal and cardiac muscle tissues. Nervous tissues - Conducts impulses organs from neurons.
The outer layer is the epidermis. The dermis is in the middle and fat forms the innermost layer. Blood vessels, nerves, hair follicles, oil glands and sweat glands are located in the dermis. The major function of skin is to provide a barrier between you
RHODA JAMES VISUAL REPRESENTATION OF THE HUMAN BODY WESTWOOD COLLEGE The human skeletal system functions as a framework or support system for the rest of our bodies. Ii gives us our shapes and allow us to move, the bones of our skeletal systems also store minerals and help produce blood for our bodies. The structure of the human skeletal system is made up of 206 bones. The skeletal system is divided into two parts, the axial skeleton and appendicular skeleton. The axial skeleton includes the skull, spinal column, ribs and sternum.
Flat bones provide protection for the internal organs including the brain, heart, lungs, liver and kidneys. The flat bone is made up of two layers of compact bone with a layer of spongy bone in the middle. 3) The epiphyseal plate is located in the metaphysis of the long bones which is found between the epiphysis and diaphysis. The epiphyseal plate is made up of hyaline cartilage. The cartilage makes it possible for the diaphysis to grow in length, thus the epiphyseal plate is also known as the growth plate.
In describing the cellular components of skeletal muscle, several specialized terms are used such as the plasma membrane of skeletal muscle is called the sarcolemma; its cytoplasm is known as sarcoplasm; the endoplasmic reticulum is called the sarcoplasmic reticulum. The term motor unit is used to describe a group of muscle fibers innervated by a single motor nerve, the fibers within a single motor unit contract simultaneously (Van and Marleen,2000). Each muscle cell is surrounded by a sarcolemma and has many nuclei occurring at intervals along its length. The nuclei are displaced peripherally within a cross section of the sarcoplasm while a large number of longitudinal myofibrils, groups of arranged contractile proteins, occupy most of the center space(Tortora and Derrickson,2011). Based on nerve stimulation studies, skeletal muscles are divided into two muscle fiber types, the first type is called Slow-twitch muscle fibers which mainly rely on aerobic metabolism.
Tissues and Tattoos The four types of tissue are epithelia, connective tissue, muscle tissue and neural tissue. They are all different but all serve a general purpose to cover, fill and protect what is underneath. Epithelia cover exposed surfaces, line internal passageways, chambers and produce glandular secretions. Connective tissues are responsible for filling internal spaces, provide structural support and store energy. Muscle tissue contract to produce active movement.
Provide physical protection Control permeability Provide sensation Produce specialized secretions There are various specialized types of epithelia. They can be sorted by cell shape and the number of cells between the basement membrane and the exposed surface of the epithelium. The three basic shapes of epithelial are squamous, cuboidal, and columnar. If the basement membrane is only covered by one layer of cells it is called a simple epithelium. If the basement membrane is cover by several layers of cells it is called stratified epithelium.
It is made of connective tissue, containing collagen and elastin. The dermis contains specialised cells, blood vessels and lymphatic vessels as well as nerve endings that inform the brain to heat, cold, pressure and pain. Sweat glands extend from deep in the dermis to the outer layer of the epidermis. Sweat contains mostly water, urea and salts and it helps to control body temperature. Hair follicles are found in the dermis and attached to these are tiny muscles called erector pili.
What is a tendon made of? Tendons are made of dense, regular connective tissue. This form of connective tissue consists of densely packed bundles of collagen fibres. These fibres all run parallel to each other in the direction of the pull that is generated on the tendon What are agonistic muscles? Agonistic muscles are a classification used to describe a muscle that causes specific movement or possibly several movements to occur through the process of its own contraction.