Sentences with phrase «electrical signals sent»

The electrodes detect tiny electrical signals sent from the heart with each heartbeat.

This section provides a discussion of excitation - contraction and how electrical signals sent through the nervous system lead to muscular contractions at the sarcomere level.

Muscle fibers produce tensile force in this way in response to pulsed electrical signals sent from the central nervous system (CNS) along efferent nerves.

This electrical potential is produced in consequence of electrical signals sent from the brain, along efferent nerves that control motor units (Baylor & Hollingworth, 2011; Smith et al. 2013).

By determining the structure of a protein involved in modulating the electrical signals sent from one nerve cell to another, scientists have resolved, in exquisite detail, a mechanism responsible for...

Various previous studies had shown that epigenetic remodeling of DNA by methylation or demethylation led to changes located in synapses, where one neuron communicates with another by chemical or electrical signals sent across a small gap.

Excitation - contraction coupling describes the way in which the electrical signal sent through the nervous system leads to muscular contractions at the sarcomere level.

Each pulsed electrical signal sent by the CNS is called an action potential.

Not exact matches

Colorado - based Cochlear's processors gather sound from the environment, turning it into an electrical signal and send it to an electrode implanted in the ears of people with hearing loss.

Standard x-ray systems have one detector containing individual elements called diodes, which convert the level of detected x-ray energy into an electrical signal that's sent back to the machine's on - board computer.

A transducer sends high - frequency sound waves into the body; as the sound waves bounce off organs and structures, they produce electrical signals that are converted into images.

In 2011 researchers found that these waves of electricity cause neurons in the hippocampus, the main brain area involved with memory, to fire backward during sleep, sending an electrical signal from their axons to their own dendrites rather than to other cells.

The Kinect's camera tracked the roach's movements, and if it veered away from the target, the software would instantly send an electrical signal to keep the roach moving in the right direction.

Ko explains that noise can make small vibrations in the e-skin, which induce slight perturbations in the microdome array that send electrical signals.

The tip of the catheter delivers radiofrequency energy that heats and destroys tissue that is sending out erratic electrical signals.

As signals are sent from one cell to the next, rhythmic patterns of electrical activity, commonly known as brain waves, are generated.

That's a first step in creating electrical signals that could be sent to the fingers, which could virtually recreate sensations such as heat, pressure, and texture, the team reports online today in Nanotechnology.

When an insect happens into the plant's trap zone, it triggers minuscule hairs that send a tiny electrical signal, causing small amounts of water to shift.

The brain controls movement by sending electrical signals to our muscles through nerve cells.

The rotation of the beam of light (and thus the electrical potential applied) therefore determines whether a light signal is sent or blocked.

He said previous research shows that memories make changes in the synapse, the thousands of regions in each neuron responsible for sending electrical and chemical signals to other neurons.

An electrical signal is now sent from outside and by rapidly opening the boxes the system begins to swing in dynamic vibrations.

The rate at which each cell sent electrical signals was proportional to a given face's coordinate position along an axis.

A film with higher resistance has lower electrical conductivity, meaning that more voltage must be applied to send a signal through it, which further degrades the material.

Each pyramid, in turn, is equipped with an electrode, for measuring electrical signals or sending stimuli to the network.

This implant sends electrical signals to the brain to help curb some symptoms caused by Parkinson's.

In 2004, surgeons placed a tiny 100 - electrode array in his primary motor cortex, the brain region that controls voluntary movement, to collect electrical impulses from nerve cells and send them to a series of signal processors.

When the antenna sends out a signal, information travels in the reverse direction, from electrical voltage to vibrations to EM waves.

It involves genetically modifying neurons so they produce a light - sensitive protein, which makes them «fire», sending an electrical signal, when exposed to light.

When these photoreceptors detect light, they send a signal to specialized neurons in the retina called retinal ganglion cells, or RGCs, which then transmit visual information to the brain by firing electrical pulses along the optic nerve.

This clear, flexible lens also contains a glucose sensor that sends electrical signals to an LED.

When a critter bumps into one of the flytrap's sensitive hairs, the pressure sends an electrical signal racing from cell to cell, priming its jaws to close.

Some of the cells in this layer (the photoreceptors) convert light into an electrical signal that is then amplified and processed by other cells before being sent to the brain via the optic nerve.

A subset of neurons will fire — that is, send electrical signals that convey information — when a person focuses their attention on the upper half of a scene, whereas a different subgroup activates when attention is transferred to the lower half.

Stimulating excitatory cells with chemicals or electric pulses causes them to fire, or send electrical signals of their own to neighboring neurons.

In the slightly different chamber, their dentate gyrus neurons began sending out electrical signals, which, according to Tonegawa, suggests they were «distinguishing [between] and forming different memories.»

The electrical signals must then be sent to another processing chip that converts the strength of the signals to a digital stream of pulses that is only then sent on to peripheral nerves or brain tissue.

«After a year of sound deprivation, we observed dramatic changes in the inner ear — notably, a significant loss of the synaptic connections through which the sensory cells send their electrical signals to the brain,» Dr. Maison said.

«Currently, to compute» 5 +7,» we need to send an electrical signal for» 5» and an electrical signal for» 7,» and the transistor does the mixing to produce an electrical signal for» 12,»» Agarwal said.

That's because different optical signals can share the same optical wire, whereas sending multiple electrical signals either requires multiple electronic wires or schemes that require more chip space and energy.

Electronics researchers would like to integrate silicon light emitters with other silicon electronics, in order to send signals between chips optically, avoiding bottlenecks caused by electrical transmission and so speed up communications.

Neurons in themselves are complex structures that use electrical and molecular signals to send information to neighbouring neurons, and the brain as a whole structure.

This change in electrical charge of the neuron is what propagates and sends the signal to the spinal cord and then to the brain to register as a sensation, such as pain or pressure.

In general, a neuron spikes, meaning it it sends an electrical signal that travels down a nerve fiber, when cued by a sensory element.

It means recording the signals that the brain is trying to send via the spinal cord, translating them into an electrical stimulus pattern that the nervous system understands, and then providing that pattern of electrical stimulation at some point below the level of the injury.

This device sends an electrical signal.

Cells send chemical and electrical signals between brain cells at synapses.

Now a team from St Andrews University claims huge thunderstorms could have sent out an electrical signal detectable from Earth.

A long fiber called the axon extends from the cell body and is coated with a protective sheath called myelin, which acts like insulation on a wire, protecting the axon and facilitating sending and receiving electrical signals.

Differentiation — A process that occurs during development by which cells take on their specialized functions, such as the ability of a red blood cell to carry oxygen or a nerve cell to send an electrical signal.