A long tail-like structure that is responsible for carrying impulses distant from the soma in the nerve cell is defined axon. Many axons are covered with the myelin sheath, which protects the axon and helps the axon to conduct electrical signals. Axons help to make up nerves....
We have talked about nerve signals and mentioned that they are electrochemical in nature, but what does that mean? To understand how neurons transmit signals, we must first look at the structure of the cell membrane. The cell membrane is made of fats or lipids called phospholipids. Each phosph...
Signals from higher brain centers: Nerve cells in the hypothalamus and cortex also influence the activity of the respiratory centers. During pain or strong emotions, the hypothalamus will tell the respiratory centers to speed up. Nerve centers in the cortex can voluntarily tell the respiratory center...
Different sensory nerve fibers respond to different things and produce different chemical responses which determine how sensations are interpreted. Some nerves send signals associated with light touch, while others respond to deep pressure. Special pain receptors callednociceptorsactivate whenever there has b...
[96]. In response to different extracellular signals, calmodulin can be relocated into different subcellular compartments to do its function [95]. There are little details in the literature about the role of calmodulin in novopodia in glioblastoma cells. As mentioned earlier, the ability of glial...
limbs is by electric signals coming down through the nerves to the muscles, and these come in the form of electric impulses. those signals are captured by the electronics of the prosthesis. so they travel down to the prosthesis where the brain of the prosthesis understands what those signals ...
The sensation of pins and needles tends to occur when the signals are produced erratically. There are three main causes of nerve damage that can lead to numb feet and toes:1. Temporary Nerve Compression Numb feet often develop either after we have been sitting awkwardly for a while e.g. ...
presbycusis, or age-related hearing loss, can be due to arthritis between your little ear bones. we get to our inner ear. we have specialized hair cells, and they send signals to our vestibular cochlear nerve. that's how we hear, that's how we sense balance. as we age, hearing loss...
When these hair cells are moved, they send an electrical impulse through the cochlear nerve. The cochlear nerve sends these impulses on to the cerebral cortex, where the brain interprets them. The brain determines the pitch of the sound based on the position of the cells sending electrical imp...
Study in Worms Shows How Proteins Work to Dispatch Nerve SignalsHarald Franzen