1. The four primary tissues of the human body, epithelial, connective, muscular, and nervous tissue. Epithelial tissue functions as a covering or lining for the internal organs found throughout the body as skin, in the digestive tract absorbing nutrients, and lining the inside of blood vessels. As a glandular tissue that excretes substances for waste or for bodily uses of the exocrine/endocrine systems. Connective tissue is the most abundant tissue found in the body, ranging from tendon and ligaments connecting bones together, bones for structural support. Muscular tissue provide movement for the body, contracting muscles by reacting to stimulus, providing thermal regulation. Nervous tissue is found in the brain, spinal cord, and peripheral …show more content…
Exocrine gland release substances through ducts or tubes that lead the external surface of the membrane, sweat glands, saliva, or the gastrointestinal tract. Endocrine gland doesn’t have any duct that lead to the surface, it diffuses its secretion into the bloodstream.
4. Different types of muscles. Smooth muscle cells are shaped in spindles with single nucleus, have involuntary movement through the body and do not have any striation. Smooth muscle can be found in digestive system, urinary tract. Muscular cells are found as bundles, with striation and are multiple nucleus found along the membrane surface. Cardiac muscle cells are only found in the heart, the cells short, branched with a centrally located, single nucleus and are striated with intercalated disc found between to speed up the electrical conduct of the heart rhythm without external stimulus.
5. There are two types of nervous system cells, they receive and send electrochemical responses to the body. Neuron cells are the conducting cells of the nervous system. Neurons have a cell body with dendrites branching from the main body, an axon which is the long tail that extends from the main body that is wrapped in myelin to create a protective sheath around the axon that also helps speed the neurotransmissions. The glial cell is the supporting cells of the
2.The basic cell that makes up the nervous system and which receives and sends messages within that system is called a neuron.
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.
This tissue covers the whole surface of the body and is specialised to form the covering or lining of all internal and external body surfaces. The bottom layers of the cells are attached to the basement membrane for support and connection. Endothelium is an epithelial tissue that occurs on surfaces on the interior of the body. There are nerve
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
5. What is the difference between apocrine, merocrine and holocrine glands? Which is the most common?
In this assignment I’m going to talk about the structure of the main tissues which are found within the body as well as what their role is in the terms of two named organs of the body. Tissues are a collection of similar cells that group together to carry out a specific function within the body. There are four different types of tissue found in the human body which include; epithelial tissue; connective tissue; muscle tissue and nerve tissue.
The 4th tissue is the nerve tissue which it is composed of neurons and neuroglia. The function of the neurons are to receive and conduct electrical signals and the neuroglia is to have support functions providing insulation to the axons. Furthermore the neuroglia and the neurons are both included in the central nervous system and peripheral system. What makes this tissue special is that neurons and neuroglia helps to revive signals with also proving the insulations.
The central nervous system (CNS) is part of the human body which includes the brain and spinal cord (Lewis, Heitkemper, Dirksen, & Bucher, 2014). The cells of the nervous system are known as neurons, which is protected and nourished by neuroglia (Lewis et al., 2014). The spinal cord includes ascending and descending tracts which controls sensory and muscle movements (Lewis et al., 2015)
Epithelial tissue covers body surfaces and lines body cavities. Simple squamous epithelium consists of one layer of thin, flat epithelial cells resting on a basement membrane formed of connective tissue. Squamous epithelial cells are flat, tightly adherent to each other, thin, and have a smooth surface. This helps with the rate of diffusion and reducing friction to aid blood
The organisation of the body is cell, tissue, organ, system and within the body there are many types of tissues. The four main tissues within the body are: epithelial, connective, muscle and nervous tissue. Tissue is a group of cells which are similar to one another and carry out specific functions. In this report detailed explanations of the four main tissue types and where they can be located within the body.
The nervous system is made up of neurons, or nerve cells. The neurons communicate with each other by receiving and transmitting electrochemical signals, called neurotransmission. All human behavior is made possible by the activity of individual neurons working together in the
The central nervous system is one of the most important systems in the human body, and at its core is the neuron. Neurons are cells that facilitate the transmission of electrical signals throughout the body. They allow the nervous system to act as a communication network that runs throughout the entire body. Without neurons, the brain could not tell the rest of the body what to do. Neurons come in various shapes and sizes; however, they all share the same basic structure. Additionally, there are several different types of neurons that perform a variety of functions.
There are several different types and shapes of cells, these group together to form tissues
Human brain consists of billions of cells interconnected together, with each performing its separate functions. It consists of two explicit categories of nerves: neurons and glia cells. Neuron is a single nerve cell in the entire nervous system; which is electrically excitable cell that carries information after being processed via chemical or electrical signals. One of its key characteristics is that it does not undergo cell division. In addition, it maintains a voltage gradient for all the neurons across its membranes. Glia cells, on the other hand, its functionality is to maintain homeostasis.