Cells of the Nervous System Two main cell types make up the nervous system: neurons and glial cells. Neurons are the heavy-hitters in the CNS—they are responsible for communicating with each other and carrying information back and forth from the nervous system to the rest of the body. It ...
Various cells, tissues and organs make up the system of the whole body. A similar type of cell forms a particular tissue that functions as an organelle. If certain mutagens, either artificially or naturally induced, cause cells to become cancerous, it will affect the functioning of the entire...
Neurons are the cells that make up our nervous system, including the brain, spinal cord, and peripheral nerves. Neurons are usually classified as afferent neurons, those that send messages to the brain, and efferent neurons, those receiving messages from the brain. Sensory neurons are always affe...
Nervous tissue is responsible for many of the body’s activities and processes, including memory, reasoning and emotions. Signals from this tissue also cause muscle contractions. Neurons and glial cells make up nervous tissue. Humans have billions of neurons, in varying size, in their bodies. ...
Somatic cells are all the cells that make up an organism, including the organ, muscle, fat, bone, and skin cells. The only exceptions are the egg and sperm cells, also called germ cells, which are involved in sexual reproduction. Although somatic cells differ greatly in their form and func...
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TWO PARTS of NERVOUS SYSTEM (see transparency) CENTRAL nervous system PERIPHERAL nervous system Made up of nerve cells that send messages between the CNS and parts of the body. OUCH! THAT’S ONE HOT STOVE!!! How do messages get sent from one part of the body to another?
These cells and nodes make up your heart conduction system pathway. Conduction System of the Heart Steps The main function of your heart’s conduction system is to contract and relax your heart, which causes your heart to beat and helps pump blood through your body. ...
The effect is two-way. There is a lengthening list of symptoms not typically viewed as disorders of the nervous system, but the brain plays a large part in them. For example, the development of a fever is influenced by a population of n...
The central nervous system consists of two major parts; the brain and spinal cord The Brain The brain is contained within the skull and weighs approximately 1.3 to 1.4kg. It contains the neurons and supporting cells known as glia. Two types of matter make up the brain – the grey matter ...