PSYCH Ch. 3 Neurosystem (Central Nervous System) CNS – Brain & Spinal Cord (Peripheral) PNS Soma – cell body‚ contains nucleus and much of chemical machinery common to most cells Dendrite – part of neuron that is specialized to receive information Axon – transmits information away from the soma to other neurons/muscles/glands Action potential – brief period where channels open and it changes chemical reaction within cell Absolute Refractory Period – minimum length of time after an
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Underneath the cerebrum lies the brainstem‚ but behind that is where the cerebellum can be located. On the other hand the outermost layer of the cerebrum is the cerebral cortex that happens to contain four lobes which include the frontal lobe‚ parietal lobe‚ temporal lobe‚ and the occipital lobe. However the human brain can be broken it many more parts but it will always trace back to these six parts. Although this is
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The human brain has five divisions. They start forming in the vertebrae embryo as the tissue that eventually develops into the central nervous system. The first developments of the brain are three swellings that appear at the anterior end of a fluid filled tube. These swellings eventually become the forebrain‚ midbrain‚ and hindbrain. What happens is‚ the forebrain swelling grows into two different swellings and so does the hindbrain swelling. This is what makes up the five divisions of the brain
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The means by which the brain performs are referred to as neuroprocesses‚ which are related to learning and memory. The brain is the center of every function of the body that controls functional learning and memory and how the two are interdependent. Learning occurs when the memory is stimulated. The memory is activated once learning has taken place. With knowledge at the center of attention‚ it is imperative to stimulate the brain through lifelong learning to achieve longevity and quality of life
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nuclei and cerebellum The basal nuclei adjust or establish patterns of muscle movements‚ and the cerebellum monitors proprioceptive and vestibular information. Which of these is/are (a) component(s) of the somatic nervous system? Ventral roots Motor cortex Ventral horn All of these are component of the somatic nervous system Mechanoreceptors that respond to changes in blood pressure are called Baroreceptors Assessing spinal nerve damage may involve the use of a vibration fork that is tapped along
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THE CENTRAL NERVOUS SYSTEM Every behavior begins with biology. Our behaviors‚ as well as our thoughts and feelings‚ are produced by the actions of our brains‚ nerves‚ muscles‚ and glands. In this chapter we will begin our journey into the world of psychology by considering the biological makeup of the human being‚ including the most remarkable of human organs—the brain. We’ll consider the structure of the brain and also the methods that psychologists use to study the brain and to understand how it
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The Five Major Structures of the Brain The brain is an amazing structure. It is the most complex and interesting part of the human body. It is like a huge computer that runs every function of the body. The brain is made up of the five major structures that include: the myelencephalon‚ metencephalon‚ mesencephalon‚ deicephalon‚ and the telencephalon. Each of these structures also has substructures involved within them. You start learning how to do things when you are born and keep learning as
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cognitive process. The part of the brain that differentiates the human brain from brains of other species’ is the cerebral cortex. The cerebral cortex controls senses‚ thoughts‚ language and memory. The brain plays the most crucial part in the cognitive process. The part of the brain that differentiates the human brain from brains of other species’ is the cerebral cortex. The cerebral cortex controls senses‚ thoughts‚ language and memory. Aaron Marentette agrees with psychologists and says “The
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the back? Front of the brain is located at the front of each cerebral hemisphere 3. Label the cerebrum and cerebellum and describe their functions. Cerebral functions: controls complex Cerebellar functions: controls balance thought processes. And maintains muscle coordination. 4. Label the four lobes of the cerebral cortex. 5. Label the motor cortex and describe its function. it is responsible for sending
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awake) of the organism‚ also controls muscle tone and sensory awareness. 2. Midbrain-* limbic system*: emotional (center or the brain). Controls for thirst‚ hunger‚ as well as aggression and violence. Pleasure center also located in this area. 3. Cerebral Cortex- Outermost layer of the brain. Responsible for the higher mental processes- Thinking‚ memory‚ language‚ music‚ and art. Two hemispheres: for the most part activities on the left side of the body come under the control of the right hemisphere
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