Tag: generation and conduction of nerve impulse

Saltatory conduction occurs in myelinated nerve fibers, where the action potential jumps between the Nodes of Ranvier.

The refractory period is the time during which a neuron is incapable of generating another action potential, occurring after depolarization and during repolarization.

Afferent (sensory) nerve fibers carry impulses from sensory receptors toward the central nervous system (CNS).

The cell bodies of motor neurons (somatic efferent neurons) are located in the ventral (anterior) horn of the spinal cord gray matter.

The Na+/K+ pump maintains the resting potential by actively transporting 3 Na+ ions out of the cell and 2 K+ ions into the cell for every ATP molecule hydrolyzed.

In the ear, the cochlea contains the organ of Corti, which converts mechanical vibrations into nerve impulses that travel via the auditory nerve.

The resting potential is the electrical potential difference across the plasma membrane of a neuron when it is not being stimulated.

Axo-axonic synapses can modulate the release of neurotransmitters from the terminal of the postsynaptic axon, effectively reversing or inhibiting the signal transmission.

The vagus nerve is the tenth cranial nerve (CN X) and is the primary component of the parasympathetic nervous system for the thoracic and abdominal viscera.