Planning cells of the brain

December 10 / 2017

Stage: b) planning

Approaches to learning: Information management and media literacy skills because I searched for information about the cells of the brain and wrote down the most important points of the research.

In the making of this entry I found myself knowing a lot more about this topic than I expected thanks to what I saw in biology last year. When researching about the different types of neurons it was fun to discover I knew the function of each neuron and the different parts of the neuron and what they are meant to do. 

Nerve cells: - Also known as neurons, they transmit information through electrical and chemical signals.

- They all consist of a cell body, an axon and dendrites.

- Neurons transmit the energy they have when they are stimulated through a tiny gap called synapse.

- The dendrites are in charge of receiving the messages from other neurons.

- Messages pass through the cell body, also known as the axon that determines wether the message is important and should be passed down to the synapse or not.

- Once a neuron dies, there shall never be one exactly the same.

- There are around 100 billion neurons in the brain and 13.5 million in the spinal cord.

- There are four types of neurons; receptor, sensory, motor and interneurons neurons.

- The receptor neuron is the one that receives stimuli from the senses and it passes a signal to the sensory neuron.

- The sensory neuron carries the message all the way to the spinal cord or other pars of the body.

- The motor neuron carries out the action after being stimulated.

- The interneurons are the ones that sent messages from one neuron to another.

https://www.mayfieldclinic.com/PE-AnatBrain.htm

https://www.healthline.com/health/fun-facts-about-the-nervous-system

Glia cells: - They are the cells of the brain that provide neurons with nourishment, protection and structural support.

- They are the most common type of cells involved in bran tumors.

- There are about 10 to 50 more glia cells than nerve cells in the brain

- Oligondendroglia cells provide myelin to neurons

- Microglia cells digest dead neurons and pathogens

- Ependymal cells line the ventricles and secrete cerebrospinal fluid.

- Astroglia cells nourish neutrons, holds them in place,  digest their dead parts and regulate the blood brain barrier.

https://www.mayfieldclinic.com/PE-AnatBrain.htm