Tori+Ross

Genetics. post #1 January 17 2013
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__Cri-Du-Chat Syndrome. __

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5p deletion syndrome;p minus syndrome; Cat cry syndrome. Cri-Du-Chat syndrome is a 1 in 50,000 chance of happening to a child. This syndrome is when chromosome 5 is missing millions of letters at the end of the chromosome. In chromosome 5, it has an area called the 5p15.3, or the “cat-like cry critical region.” When a baby is born with this condition during the first years of its life it will not form  it’s voice box, resulting from the 5p15.3 part of the chromosomes and will make a meowing like sound.

Some symptoms of Cri –Du-Chat syndrome include: Lower ears, small jaw and head, wide eyes with a downward slant , only one crease in the hand and more. If you take your child in for a physical exam, the doctor might also find guinal hernia, Diastasis recti a separated abdominal muscles. Low muscle tone, and epicanthi folds which is an extra fold of skin over the inner corner of the eye. Incompletely or abnormally folded external ears and A skull x-ray can show an abnormal angle to the base of the skull. Unfortunately there is n o cure for this syndrome yet.

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"Tessa is 6 years old and makes almost everyone she meets fall in love with her.

She is quite a celebrity at her school. She was diagnosed with cri du chat at the age of 9 months.

Her biggest problem is of course constipation, besides that she is in good health."

Pat and Nancy Lunsford

Read more [] [] [] http://bcbiologycriduchat.wikispaces.com/

Sources [] []

[|http://www.slate.com/articles/health_and_science/chromosomes/features/2012] [|/blogging_][|the_human_genome_/blogging_the_human_genome_muscular_dystrophy_] [|cri_du_cha]t_[|immigration_delay_disease_when_dna_fails_.html]

Nervous system. Post #2. January 17 2013

__Our Brain and Spinal Cord. __

The nervous system, why we move and grove the way we do. Sending messages of touch, smell, sight, noise and taste t hough our spinal cord to our brain. And the inter neuron that put them together. The central nervous system contains the brain and spinal cord; it is a valuable non-replaceable system in our body. Peripheral nervous system can work by itself or along with the central nervous system; you can find the sensory and motor neurons here.



Bathed in cerebrospinal fluid, the brain is kept safe and nourished at the same time. The brain also has layers of connective tissue around it, to keep it all more secure inside the skull. These tissues keep unwanted bacteria from coming too close, and help the fluid. There are many different parts to the brain, and they all serve different purposes for our differ <span style="font-family: Arial,sans-serif; font-size: 12pt; line-height: 1.5;">ent needs, like memory, sight, even how we multi task and more.

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<span style="font-family: Arial,sans-serif; font-size: 12pt; line-height: 1.5;"> Being a lifeguard, I know that having a spinal injury can be rare, but dangerous. One wrong move and the spinal victim can become paralyzed. Even from bumping your head a certain way, you can damage your spinal cord. Since our brain as all these layers of tissues and <span style="font-family: Arial,sans-serif; font-size: 12pt; line-height: 1.5;">cerebrospinal <span style="font-family: Arial,sans-serif; font-size: 12pt;">fluid to keep it in place inside out skull, what does our spine have? <span style="font-family: Arial,sans-serif; font-size: 12pt; line-height: 1.5;"> Our spinal cord is protected by the bones in out spine. But if one of them breaks, then it can damage the nerves running though the spinal cord. Which could result in serious conditions of the body.

Sources and Extra Reads! <span style="font-family: Arial,sans-serif; font-size: 12pt;">[] <span style="font-family: Arial,sans-serif; font-size: 12pt;">[] <span style="font-family: Arial,sans-serif; font-size: 12pt;">[] <span style="font-family: Arial,sans-serif; font-size: 12pt;">[] <span style="font-family: Arial,sans-serif; font-size: 12pt;">[] <span style="font-family: Arial,sans-serif; font-size: 12pt;">[] <span style="font-family: Arial,sans-serif; font-size: 12pt;">[] <span style="font-family: Arial,sans-serif; font-size: 12pt;">[] <span style="font-family: Arial,sans-serif; font-size: 12pt;">[] <span style="font-family: Arial,sans-serif; font-size: 12pt;">