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How do you draw and label a neuron?
To draw a neuron, start with the cell body (soma), which contains the nucleus. Extend multiple branching structures called dendrites from the soma, which receive signals from other neurons. Draw a long projection called the axon, which transmits impulses away from the soma, and label it. At the end of the axon, include axon terminals, where neurotransmitters are released, and indicate the myelin sheath along the axon for insulation.
How is the structure of the myelin sheath related to its function?
Myelin sheath is the "cover" if you like of nerves. It's structure is important in helping pass the nerve impulses along it's axon, from the body, to the terminal buttons. Long story short, a degeneration of the Myelin sheath leads to interrupted, or non existent impulses, and causes a very well known disease, called MS (multiple sclerosis)
How can a heart murmur affect an ECG?
It won't. But in the long term the murmur (depending on which valve is affected) will cause hypertrophy of cardiac muscles for the different ventricles/atria. And the hypertrophy will be detected by the ECG because it will change the cardiac axis. Murmurs are easily heard using a stethoscope so and ECG isn't useful. An ECG monitors the electric impulses of the heart muscle - so better to see heart blocks, infarcts, hypertrophy, AF, SVT etc
Why can we feel earthquakes hundreds if miles away?
We can feel earthquakes hundreds of miles away due to the seismic waves they generate, which travel through the Earth's crust. These waves include primary (P) waves and secondary (S) waves, as well as surface waves, which can propagate over long distances. The intensity of the shaking felt at a distance depends on factors such as the earthquake's magnitude, depth, and the geological characteristics of the area. Additionally, some seismic waves can be amplified or modified as they pass through different materials, affecting how far the effects are felt.
Why do map projections distort some parts of the earth?
The problem with making maps is that maps are flat and the earth isn't. In order to represent a curved surface on a flat surface, things have to be distorted.The only way to represent the earth's surface accurately in every way is on a globe.
What are the two parts the neuron is split up into?
There are actually 3 parts to a neuron. The dendrites are tree branch like projections that receive nerve impulses from another neuron, the cell body that contains the nucleus, and the axon, a long fiber that carries the nerve impulse away from the cell body to the next neuron.
Processes that carry impulses to another neuron?
The functional and structural unit of the nervous system for fast communication are called neurons. A neuron is made of cell body with extensions which are the axons and dendrites that carry impulses.
What carries impulses away from the cell body?
Axons carry impulses away from the cell body of a neuron. They are long, slender projections that transmit electrical impulses to other neurons, muscles, or glands.
Axons are found in the region of a neuron.?
Axons are long, slender projections of a neuron that transmit electrical impulses away from the neuron's cell body. They are typically found in the region of the neuron extending from the axon hillock, where action potentials are generated, and can branch out to communicate with multiple target cells. The axon is crucial for relaying signals over long distances, making it an essential component of the nervous system's communication network.
Do axon contain a nucleus?
No, axons do not contain a nucleus. They are long, slender projections of a nerve cell that transmit electrical impulses away from the cell body towards other neurons or target cells. The cell body of the neuron contains the nucleus which is responsible for controlling the functions of the cell.
What is the long trunk of a neuron called?
The long trunk of a neuron is called an axon. The axon is responsible for conducting electrical impulses away from the cell body to other neurons, muscles, or glands.
Part of a neuron that conducts nerve impulses?
Synapses. Net flow of charged ions ("impulses") in neuronal cells trigger additional ion flow (ionotropic signaling) or neurotransmitter release (metabotropic signaling) to both neuronal and non-neuronal cell types ("the body") at junctions called synapses.
Why do the sensory neuron has short axon and long dendrites?
sensory and motor neurons are sometimes very long so that the impulses can be carried away from the body very quickly. in the motor neuron the impulses "jump" over the fatty tissue to the Node Of Ranvier.
What Carries nerve impulses over long distances?
Nerve impulses are carried over long distances in the body by specialized cells called neurons. Neurons have long projections called axons that transmit electrical signals known as action potentials. These action potentials travel along the axon until they reach the next neuron or target cell, enabling communication between different parts of the body.
Which elongated cell can conduct impulses?
A neuron is an elongated cell that can conduct impulses. Neurons have specialized structures called axons that transmit electrical signals over long distances within the body.
A is for what part of the neurone that carries impulses away from the cell body?
A is for the axon, which is a long, thin extension of a neuron that carries impulses away from the cell body towards other neurons or target cells.
What is the long thin extension of the cell body of a neuron which is the conductor of nerve impulses?
An axon is the long extension of a nerve cell body. The dendrites are the short branches.
