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| Large part of the brain- composed of 2 hemispheres |
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| Grooves in the surface of the cerebrum |
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| Bumps on the surface of the cerebrum |
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| Receives messages from multiple nerve cells and makes sense of the signals that come to the brain. Helps us process info, think logically, plan ahead and recognize faces |
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| Front of cerebrum- coordinates thinking, planning, emotional response |
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| Back of cerebrum- processes visual info |
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| Upper part side of cerebrum- coordinated incoming messages from toxin and outgoing messages for movement |
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| Along the bottom side of cerebrum- supports speech and language |
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Small densely striped structure lies below and to the back of the brain
Divided into hemispheres
Processes messages from muscle, inner ear, and uses info for coordination and balance |
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Extension of the spinal cord
Regulates heartbeat, breathin, and body temp
Relays messages from the body parts of the brain
Right hemisphere record and sends info and from thenleftnside of the body band vice versa |
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| Acts a screen where the image is formed on the back of the brain |
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| Protects eye and acts as a lens |
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| To bend light and project image onto retina able to make slight adjustments |
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| Allowes light to come into your eye |
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| Rods and cones translate light energy into electrical impulses |
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Magnetic Resonance Imaging
Magnetic radio waves
To see structure of the brain |
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Computerized Axial Tomography
X-rays
To see structure of the the brain |
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Electro Encephalography
Electrodes to measure electricity cause by activity on the brain
To see activity on the surface okf the cerebrum |
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Positron Emission Tomography
Radioactive Sugure Glucose
To see activity within the brain |
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affects women more than men. The disorder is most commonly diagnosed between ages 20 and 40, but can be seen at any age.
caused by damage to the myelin sheath, the protective covering that surrounds nerve cells. When this nerve covering is damaged, nerve impulses are slowed down or stopped.
The nerve damage is caused by inflammation. Inflammation occurs when the body's own immune cells attack the nervous system. Repeated episodes of inflammation can occur along any area of the brain, optic nerve, and spinal cord.
Researchers are not sure what triggers the inflammation. The most common theories point to a virus or genetic defect, or a combination of both. Geographic studies indicate there may be an environmental factor involved.
As more and more nerves are affected, a person experiences a progressive interference with functions that are controlled by the nervous system such as vision, speech, walking, writing, and memory
People with a family history of MS and those who live in a geographical area where MS is more common have a slightly higher risk of the disease. |
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a genetic disorder that weakens the muscles that help the body move. People with It have incorrect or missing information in their genes, which prevents them from making the proteins they need for healthy muscles. Because It is genetic, people are born with the problem — it's not contagious and you can't catch it from someone who has it.
weakens muscles over time, so children, teens, and adults who have the disease can gradually lose the ability to do the things most people take for granted, like walking or sitting up. Someone with It might start having muscle problems as a baby or their symptoms might start later. Some people even develop It as adults.
Several major forms of muscular dystrophy can affect teens, each of which weakens different muscle groups in various ways: |
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