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.
This is very important as this allows osmosis occurs in our bodies. Plasma is forced out of the capillaries under high hydrostatic pressure to form tissue fluid. Some of the tissue fluid is return in capillary ends and some is returned to the blood by the lymphatic system. Plasma carries glucose, ions, waste product, respiratory gases and hormones around the body. Small molecules such as oxygen and carbon dioxide can diffuse in and out of the cells through the phospholipid bilayer; ions and glucose molecules enter and leave the cell via the channel proteins.
Main tissues in the body There are four different types of tissue in the body, these are muscle, connective, nervous and epithelial; and for each type of tissue there are several sub-categories. In this essay I am going to describe the function of each type of tissue and the sub-categories. Muscle The muscle tissue has three different sub-categories which are striated, non-striated and cardiac. The muscle tissue is made up of muscle fibres, which can shorten, contracting and then returning to the pervious shape, which is known as relaxing. These movements cause the blood and other materials like urine, faeces and food, soft tissue and skeleton to move.
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 Pituitary Gland The body contains a system for communicating, coordinating and controlling the bodies work. This is known as the endocrine system. The endocrine system works together with other systems and glands in the body to maintain and control body energy levels, reproductions, growth and development, homeostasis and responses to stress and injury. To maintain these functions, a network of glands and organs produce, store, and secrete certain hormones to complete different body functions. Hormones, which are chemical messengers, transfer information from one gland to another for important body functions.
Structure and Function of Epithelia Epithelia are layers of the cell that cover internal or external surfaces. Epithelia line all passageways that communicate with the outside world. For example, the digestive, reproductive, respiratory, and urinary tracks. There are four main functions of epithelial tissue. Provide physical protection Control permeability Provide sensation Produce specialized secretions There are various specialized types of epithelia.
Sensory nerves send messages to the glands and the muscles, telling them what to do. Epithelial Tissue The functions of epithelial tissue include transportation of materials, protection of underlying tissues, absorption of water and nutrients and secretion of waste products. Epithelial tissue covers the whole surface of the body. It is made up of cells closely packed and ranged in one or more layers. This tissue is specialised to form the covering or
There are three types of blood vessels: arteries, veins, and capillaries. These blood vessels have the ability to expand to allow more blood to flow through them. They can also contract to help control the flow of blood. The blood flows through the big arteries into smaller ones. The smallest arteries, called arterioles, direct the blood flow into the capillaries.
All the substances entering or leaving the body must pass through epithelium and are under its control. The ion-transporting epithelium may become highly specialized for absorption or excretion. * The glandular secretions of the body by glands (exocrine and endocrine) are mainly a function of specialized epithelium. Polarity: Epithelial cells are polarized cells and we can distinguish different areas of the cells (apical, basal, and lateral) with specific structural modifications (unlike other tissues, where structural polarity is not found). Specific structures found on the apical surface
To better understand Biopsychology, one has to learn about the three most crucial parts, which are the brain, neurotransmitters, and the nervous system. The brain is in-charge for the cognition, senses, motor abilities, and feelings through its’ four lobes of the