The sarcolemma is the cell membrane of a muscle fiber. It surrounds and protects the muscle fiber and controls the movement of substances into and out of the cell. The sarcolemma plays a crucial role in muscle contraction and the transmission of nerve impulses to the muscle fiber.

Head injuries can cause seizures due to the disruption or damage to the brain's normal electrical activity. The primary reason for seizures occurring with head injuries is the disturbance in the balance of chemicals and electrical signals in the brain, resulting in abnormal electrical discharges that trigger seizures. Additionally, bleeding or swelling in the brain, as well as scar tissue formation, can also contribute to the development of seizures after a head injury.

the sensory nerves re nerves that let you feel things and it sends signals to your brain when you feel something touching you

In simplest terms, the five stages of action potential are...

A. Action Potential

B. Depolarization

C. Recovery Phase

D. Refractory Period

E. Hyper-polarization

action potential

In myelinated axons, the voltage gated sodium ions are located along the nodes of Ranvier, the exposed places between the myelin segments. The gates here, however, are not particularly more concentrated than on other un-myelinated axons.

TRUE

You die end of

The effect upon the target neuron is determined not by the source neuron or by the neurotransmitter, but by the type of receptor that is activated. A neurotransmitter can be thought of as a key, and a receptor as a lock: the same type of key can here be used to open many different types of locks. Receptors can be classified broadly as excitatory(causing an increase in firing rate),inhibitory(causing a decrease in firing rate), or modulatory(causing long-lasting effects not directly related to firing rate).

A neuron is called a inter-neuron because that specific neuron takes impulse from one neuron to a next neuron. For example your sensory neuron sends a impulse that you had felt a hot object. It goes through the spine to a inter-neuron to a motor neuron (this processes is called a reflex). Then the motor neuron tells your muscles in your hand to move

1. The neuron fires an action potential, sending the electrical signal down the axon.

I believe it's Na+

Neurotransmitters are molecules that travel from the synapses of one neuron to the dendrites of another neuron, activating channels on the second neuron that allow an influx of ions to rush in and start an impulse within the second neuron.

An impulse begins when a neuron is stimulated by another neuron or by the environment.

Systemic response is a medical term which means that your whole body is responding to a physical crisis or trauma or exacerbation of certain diseases (especially inflammatory and autoimmune diseases). There is a medical condition known as systemic inflammatory response syndrome, in which the body reacts to trauma or certain surgical procedures, but no medical term "officially" known just as systemic response syndrome.

Nerve Endings.

Axonal Terminals.

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cystic mass