WebFeb 1, 2024 · A reflex arc refers to the neural pathway that a nerve impulse follows. The reflex arc typically consists of five components: A receptor, and independent sensory cell, … WebThe output of a visceral reflex is a two-step pathway starting with the preganglionic fiber emerging from a lateral horn neuron in the spinal cord, or a cranial nucleus neuron in the brain stem, to a ganglion—followed by the postganglionic …
Human nervous system - Reflex actions Britannica
WebNov 29, 2024 · These motor pathways travel through the white matter of the spinal cord carrying information from the brain to peripheral effectors, the skeletal muscles. The … WebOct 16, 2024 · 12.2.1 Pupillary Light Reflex Pathway Pupillary constriction to light is mediated via parasympathetic (cholinergic) nerve fibers that travel along the third cranial nerve. When light is shone into one eye, both pupils constrict symmetrically (direct and consensual response to light). gold christmas decorations eggs
12.10A: Components of a Reflex Arc - Medicine LibreTexts
WebA reflex action follows this general sequence and does not involve the conscious part of the brain, which makes it much quicker. The nerve pathway followed by a reflex action is … WebThe vestibulo-ocular reflex. A rotation of the head is detected, which triggers an inhibitory signal to the extraocular muscles on one side and an excitatory signal to the muscles on the other side. The result is a compensatory movement of the eyes. The vestibulo-ocular reflex ( VOR) is a reflex acting to stabilize gaze during head movement ... WebSep 11, 2024 · The tendon reflex is a short-latency reflex, while the stretch reflex is a long-latency reflex. Mechanism. A reflex arc is an involuntary pathway by which the stimulus to a tendon elicits a muscle response. It is considered a monosynaptic reflex as only two neurons are involved; a sensory and a motor neuron, with a single synapse between them. gold christmas decorations twigs