What cells can generate action potentials?

What cells can generate action potentials?

Sufficient current is required to initiate a voltage response in a cell membrane; if the current is insufficient to depolarize the membrane to the threshold level, an action potential will not fire. Examples of cells that signal via action potentials are neurons and muscle cells.

Which type of cells receive stimuli and transmit action potentials?

nerve cells, receive stimuli and transmit action potentials to other neurons or to effector organs. They are organized to form complex networks that perform the functions of the nervous system. One type of cellular projection is called a (Blank) referring to its branching organization.

Which type of cells respond to stimuli and transmit signals?

Nervous system – Nerve Cells and Nerves Your nervous system contains millions of nerve cells, called neurons. Neurons are highly specialised to transmit messages from one part of your body to another.

In which of the following has the ability to generate action potentials without any external stimuli?

Question	Assertion: The nodal musculature has the ability to generate action potentials without any external stimuli, i.e., it is auto-excitable. Reason: The number of action potentials that could be generated in a minute very at different parts of the nodal system.
Class	11th
Type of Answer	Video, Text & Image

How does nervous system respond to stimuli?

Receptors are groups of specialised cells. They detect a change in the environment (stimulus). In the nervous system this leads to an electrical impulse being made in response to the stimulus. Sense organs contain groups of receptors that respond to specific stimuli.

Which part of the heart has the ability to generate action potential?

The nodal musculature has the ability to generate action potential without any external stimuli i.e., it is autoexcitable. AVN is located in the lower left corner of the right atrium close to the atrio-ventricular septum.

In which the following has the ability to generate action potentials without any external stimuli?

Which of the following has the ability to generate action potential?

Hence, the correct answer is option A. Sino-atrial nodes can generate action potentials without any external stimuli.

What are cells that are sensitive to stimuli called?

Cells called receptors , which detect stimuli (changes in the environment).

How does a neuron respond to a stimulus?

Ability to respond to certain stimuli by producing electrical signals such as action potentials. Can propagate (travel) along the plasma membrane of a neuron or muscle fiber due to the presence of a specific voltage-gated ion channels. When an action potential forms in a neuron, the neuron releases chemicals called neurotransmitters

How does the muscular tissue respond to stimuli?

The ability to respond to certain stimuli by producing electrical signals called action potentials. 2 types of stimuli trigger action potentials for muscle cells. Autorhythmic electrical signals arising in the muscular tissue itself, as in the heart’s pacemaker.

How is the transmission of signals mediated by action potentials?

For a long time, the process of communication between the nerves and their target tissues was a big unknown for physiologists. With the development of electrophysiology and the discovery of electrical activity of neurons, it was discovered that the transmission of signals from neurons to their target tissues is mediated by action potentials.

When does the excitable cell cannot produce an action potential?

Refractory period. The refractory period is the time after an action potential is generated, during which the excitable cell cannot produce another action potential. There are two subphases of this period, absolute and relative refractoriness.