Alphabet Challenge :: N :: The Nervous System

Pitiful Posting and the Alphabet Challenge

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Neuron

Neuron (Photo credit: Wikipedia)

According to News-medical.net

The nervous system is an organ system containing a network of specialized cells called neurons that coordinate the actions of an animal and transmit signals between different parts of its body.

It consists of the central and peripheral nervous system in most animals. Going in to detail about the nervous system would take quite a long time so you can have a peek at this link –> the nervous system.

English: Photographer: LA Dawson

English: Photographer: LA Dawson (Photo credit: Wikipedia)

The main purpose of this nervous system post is to share what I learned about snake nervous systems and digestion in the case of poor Garlick the leucistic Texas Rat Snake. His family brought him in to the vet hospital after noticing that on top of a bump in the middle of his body, he had regurgitated one mouse and rejected another. When I was preparing to check him in, I was expecting an abdominal mass and was worried to see it along his back. I tried to get as much information as I could and even got to handle him. It worried me that most of his body past the lump mostly sat in my arms. I followed the doctor in to watch her during the appointment. She was checking the strength of his muscles before an after the break as the portion of his body beyond the break still had minor movement. I was present during x-rays and saw in the first one, a dark white spot where the lump was. Upon rotating the snake to the side, it was made obvious that the poor guy had suffered a break in its back. The vertebrae were practically overlapping. I later heard the doctor explain that the snake nervous system is based on each vertebrae acting on its own. For Garlick, digestion no longer worked properly starting at the break.

ARKive :: Komodo dragon (Varanus komodoensis)

Komodo dragon (Varanus komodoensis)

Komodo dragon (Varanus komodoensis) (Photo credit: Wikipedia)

ARKive – Komodo dragon videos, photos and facts – Varanus komodoensis.

– Scientific Classification –

The komodo dragon is one of my all time favorite reptiles. If there’s one dangerous thing I’d be crazy enough to study, hands on, it’s this. This gorgeous lizard, the largest in the world, is listed as Vulnerable on the IUCN Red List. They can be found in Indonesia on the island of Komodo and the neighboring islands, Rinca and Flores.

Some of the most prevalent controversy surrounding the Komodo Dragon is on the nature of the way it kills. A dragon will either feed on carrion or bite its prey and then stalk it until it dies. It was theorized that toxic bacteria was the main source of the attacked prey’s subsequent shock induced death. Now it seems that credit is given to a venom produced in glands in the lower jaw of Komodo dragons that seeps into the wound after the Komodo bites the animal. During feeding, the Komodo dragon can consume up to 80% of its body weight in one sitting.

Here’s a video of one of the craziest reptile lovers who ever lived running around with the world’s largest lizard:

The Autohaemorrhaging Horned Lizard

Desert horned lizard

Image via Wikipedia

– Scientific Classification –

The Horned Lizard (also known as the “horny toad“) is a species with an intense, and fairly disgusting, adaptation that aids its survival. The following video shows the more trivial spectrum of its self-preservation habits as displayed by a female horned lizard:

The following link shows the extremely interesting act of…well just watch it:

DID YOU WATCH IT?! HOW GROSS IS THAT?! So, the process of shooting blood from its eye (done by at least 4 species of horned lizard) is called autohaemorrhaging. Blood flow leaving the head is restricted leading to increased blood pressure around the eyes. This bursts tiny vessels, squirting blood up to 5 feet. The blood is not only alarming, but tastes foul to canines and felines. Moral of the story? If you don’t like blood, don’t threaten a horned lizard.

Sources:

  1. Wikipedia – Horned Lizard

VMCAS Deadline Countdown: 10 days

PRWeb :: Bird-Eating Fanged Frog One of 163 New Species Found in Greater Mekong in Past Year

Bird-Eating Fanged Frog One of 163 New Species Found in Greater Mekong in Past Year.

This is an article about a pretty weird reptile that I found while doing the Irrawaddy Dolphins post (see below). There is also brief mention of a more cursorial (walking) bird newly discovered in the region. Species such as these are threatened by climate change.

This youtube video is just a brief slide show of some of the species found in Greater Mekong: