Nerve and Muscle Physiology — Flashcards

The key mediators of pain in inflammation are _____ and PGE2, which sensitize nerve endings

In the muscle stretch reflex, stretch increases afferent impulses via _____ and II nerve fibers

_____ of the knee is brought by the action of vastus medialis muscle.

Stretch reflex:Activation of _____ motor neurons leads to direct contraction of the muscle

A sustained contraction with little expenditure of energy is made possible by a _____ mechanism in smooth muscle

Autonomics _____ Ach receptors are ligand-gated Na+/K+ (ion) channels

Stretch reflex:Input from the muscle spindle afferents _____ and II, activate the alpha motor neurons, which innervate the extra-fusal fibres

Post-ganglionic sympathetic neurons utilize _____ as a neurotransmitter in sweat glands

The _____ in neurons, known as Nissl bodies, synthesize peptide neurotransmitters for secretion

Stretch reflex:Activation of _____ motor neurons leads to indirect contraction of the muscle