Nervous system essay questions
Ap biology nervous system practice questions
The stimulus triggers chemical and electrical changes in the neuron. Neuroplasticity is the brain 's ability to remodel or reorganize itself by forming new neural connections. Unlike other tissues in the body, tissues in the nervous system do not remake themselves when damaged, and have defense mechanisms could be called self-sabotaging. The brain grows as a swelling at the front rostal end of the neural tube and later leads to become a spinal cord 1,2. Neurons come in various shapes and sizes; however, they all share the same basic structure. Initially, Neurogenesis was the main process for neuron production and it was most active during pre-natal development An axon is an extension of a neuron. They allow the nervous system to act as a communication network that runs throughout the entire body. The human nervous system is composed of the central nervous system CNS , which consists of the brain and spinal cord, and the peripheral nervous system PNS , which includes all the neural tissue outside the CNS. If so who was it? The primary components that make the nervous system carry out its functions include the brain, spinal cord, nerves, and ganglia Saladin p. Its role is to receive signals, decode the signals, and send response signals down the spinal cord to the rest of the body. Describe a problem that is associated with cerebellar lesions. List and describe the stages of deglutition.
PNS is composed of two basic types of neurons nerve cells : motor neurons and sensory neurons. Indicate the origin and specific role for each.
This organ system forms a communication and coordination network between all parts of the body. There are three types of glial cells in the CNS that can be distinguished by size and embryonic origin: oligodendrocytes a.
Individuals interacting with the board are exposed to a light, sound or touch stimulus. Nerves enable certain internal functions involuntarily in the body such as regulation of heart beat, digestive system break down of a meal and the brain interpreting visual signals from the eyes.
Our behaviors, as well as our thoughts and feelings, are produced by the actions of our brains, nerves, muscles, and glands.
Nervous system multiple choice questions
It is constructed from specialised cells called neurons Willmer, et al. Indicate the origin and specific role for each. The human body is able to adjust and control the different organs, cells, and tissues by contacting the brain with electrical impulses which then goes onto adjust and reply to the signals to maintain the proper function of the body. The sensory system incorporates nerves, tactile organs, the mind, and muscles. These two parts combine to make the central nervous system and the sensory and motor nerves which form the peripheral nervous system. Since the nervous system is controlled by the brain, it is affected drastically. Pennebaker Regulating, controlling and coordinating incoming and outgoing impulses, thoughts, and feelings via nerves. Patton and Thibodeau, The endocrine system consists of eight major glands; the hypothalamus, pituitary, thyroid, adrenals, pineal body, reproductive organs and the pancreas. The action potential then propogates through the axon.
In fact, neurons are outnumbered by supportive non-excitable cells, collectively called neuroglia a. Since the nervous system is controlled by the brain, it is affected drastically.
It 's the practice of observing neurochemicals that influence the function of neurons.
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