Raftul cu initiativa Book Archive

Science Studies

Nervous System (The Amazing Human Body) by George Capaccio

By George Capaccio

Show description

Read Online or Download Nervous System (The Amazing Human Body) PDF

Similar science studies books

Answers Book for Kids: Volume 3 - God and the Bible

Even adults fight to appreciate our author - the limitless Being who seeks a private courting with every one people. Now children can start to comprehend either God's Holy be aware and the significance of Him of their lives - what He expects from them, why it will be significant to persist with His plan for his or her lives, and the affection He has for them.

Achoo!. The Most Interesting Book You'll Ever Read about Germs

Within the 5th Mysterious You ebook, Achoo! , young ones probe the secrets and techniques of disorder and sniff out what germs are, why they usually make us in poor health, how bodies conflict them and the way vaccines safeguard us opposed to them. This precise sequence explores the mysteries of the human physique utilizing a mixture of completely researched genuine details, remarkable anecdotes and stunning try-it actions.

The Nervous System

According to anthropological fieldwork in Australia and Colombia those interesting essays use the workings of the human worried approach to demonstrate techniques of tradition. The important topic is conveyed by way of the title's double which means - at the one hand, portraying the human frightened approach as a controlling strength, at the different, as a approach that isn't in any respect systematic, yet frightened, and as a result near to cave in.

Extra info for Nervous System (The Amazing Human Body)

Example text

C ONC U S S ION S Concussions occur when the brain and its nerves are forcefully moved. Sometimes the brain knocks against the inside of the skull. This sudden jolt can affect how the brain and nerves perform. In some cases, it can lead to temporary unconsciousness. For children, playing soccer is a leading cause of concussions. Professional athletes like boxers and football players sometimes experience multiple concussions during their careers. These injuries can produce serious medical problems.

This membrane contains millions of olfactory receptor cells. These smell receptors are not all the same, and different kinds can detect different odors. When odor molecules reach the nasal cavity, they dissolve in a layer of mucus, a slippery substance. Microscopic hairs attached to the smell receptors absorb the molecules and activate the receptor cells. When smell receptors are activated, electrical signals pulse along the olfactory nerve to the olfactory bulb. The olfactory bulb is under the front of your brain and just above the nasal cavity.

This is where nerve cell bodies are located. These neurons transmit messages between the spinal cord and the pairs of spinal nerves. The white matter is made of axons, the extensions that carry impulses away from the nerve cell body. Most of the white matter is in the cervical region where numerous axons travel from the brain to the different segments of the spinal cord and from these segments up to the brain. The fewest number of axons is in the sacral region. So there is much less white matter in this region of the spinal cord.

Download PDF sample

Rated 4.63 of 5 – based on 31 votes