Axon

vesicle will contain neurotransmitter which are macromolecules that neurons use to communicate with each other. For worms, the synaptic vesicles release acetylcholine which will go into the synaptic cleft cause by electrical impulses that go down the axon (http://www.worm) The 5 worms that my group observed in plate A were the wild type strain and all 5 worms were constantly moving ventral to dorsal for the entire minute. The worms moved like a snake, from head to tail. The 5 worms that my…

Sensation and perception work together to help the brain make sense of the world we see. There cells, called sensory receptors, are the ones that send stimulus to the brain through afferent nerves, which are responsible for carrying information to the brain and spinal cord. This process is called the bottom-up processing, and it means that the information is being sent to the brain for interpretation. Then there is top-down processing, which works opposite of bottom-up processing. To make sense…

These cells offer structural support to the axons that form a ladder-like structure called the axonal scaffold in the Drosophila central nervous system. Midline glial cells function like oligodentrocytes and provides insulation for the axon. We will be using, Reversed Polarity (repo), Pointed (pnt), which are transcription factors (proteins that are involved in the process of converting DNA…

distributed throughout the cortex. Long term memories are stored throughout the brain as groups of neurons are cells within the nervous system that transmit information to other nerve cells, muscles or gland cells. Most neurons gave a cell body, an axon and dendrites. Information can only be stored for a brief duration in short term memory which seems to be between 15 and 30 seconds, unlike long term memory that last a lifetime. The third stage is Memory Retrieval; this refers to reaching…

Think about the world. There is so much out of our direct control: the weather, politics, other people, time. Really, the only thing we have that is truly ours is our own bodies. What would happen if we lost control of that too? Most people would give up; lose hope. Very few people will look on the bright side and make the most of the situation. The reality is that about 12,500 people lose control of their bodies, the one thing that truly submits to their wills, each year in the United States…

When looking at the left hemisphere of the model’s brain, the thalamus is in dark blue next to the ganglia and in front of the pineal gland. The thalamus serves as the last relay site where axons synapse before sensory signals are sent to the cerebrum. Additionally, the thalamus regulates motor functions and consciousness due to its role in sensory information regulation. The basal ganglia (in light green) are collections of nuclei found on…

formed which eventually leads to physical projection of arms/branches forming axon and dendrites. The axon terminal increases in surface area and leads to maturation of the neuron. Par-3 is important factor for the extension of neurons as they tend to turn everything to axons so regulation of Par-3 and restriction to one end of the neuron is vital process in the formation of the neuron. At the leading edge of the elongating axon is the highly motile growth cone, which possesses cell-surface…

impulses down the body of an axon When Mr. Cava is scratched on the nose by a minion, the nerve endings underneath his skin pick up the stimulus and a process begins. Next, an impulse in sent towards the brain telling it what happened. The impulse travels through axons, which connect cell bodies to muscles, neurons, or glands. This process occurs over and over, and is sped up by the use of the myelin sheath. The myelin sheath speeds up the movement of neural impulses in an axon by covering it in…

Axons are the structures that electrical signals and neurotransmitters flow through in order to reach another nerve cell’s dendrites. When these structures are damaged, the ability to relay signals is inhibited resulting in … As axons are damaged, the ionic flow across the neuronal membrane becomes irregular. This leads to the excessive release of excitatory neurotransmitters…

surrounded by an outer covering of white matter. The gray matter is seen in cross section as an H- shaped pillar containing the cell bodies and dendrites of afferent neurons and glial cells. While the white matter is composed of mostly myelinated axons. The lower motor neurons presents in the gray matter , which branch out from the cord to muscles, internal organs and tissue in other parts of the body. The upper motor neuron is located in the brain.…