These sensory receptors when activated result in the movement of both calcium and sodiujm ions through them. Facilitated ion channels O Sensorineural ion channels O Transient receptor potential receptors O Guided ligand cahnnels
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- Stellate cells initially process sensory input to the cortex, whereas pyramidal cells send fibers from the cortex to terminate on efferent motor neurons. (True or false)Which of the following types of cells has the main function of carrying a signal from a sensory receptor to the central nervous system? Sensory Neuron Interneuron Motor Neuron Oligodendrocyte Glial CellWhich of the following types of receptors assists in the maintenanceof muscle tone?a. nociceptorsb. proprioceptorsc. Pacinian corpusclesd. Krause end bulbse. All of these are correct.
- Gustatory neurons are stimulated by_____which causes the opening of____gated ion channels. These cell fire______Which of the following receptor types is NOT a membrane receptor? a. Channel-linked receptor b. Enzymatic receptor c. G protein–coupled receptor d. Steroid hormone receptorsReceptor potential initiated by an adequate stimulus :-a- develops always at it full magnitudesb- undergoes temporal summation onlyc- undergoes spatial summation onlyd- could initiate an action potential
- Slowly adapting receptors differ from rapidly adapting receptors in :-a- stopping to discharge after a relatively longer period of constant stimulationb- detecting the dynamic properties of stimulic- detecting velocity of stimulid- generating receptor potentials as long as stimulus is applied.when a stimulus is applied for a prolonged period the rate of receptor discharge slowsThe ___________________ provides electrical insulation that allows faster propagation of nerve impulses. regarding signal transduction mechaniscm in neurons.
- Sensory receptors are classified functionally according to the following criteria, except :-a- their location in the bodyb- the nature of tissues in which they are foundc- the nature of stimuli acting on themd- their connection with cerebral coretxReceptor adaptation results when:a. sensory neurons stop sending action potentialsb. a stimulus is discontinuedc. action potentials from different neurons cancel one another outd. the action potentials do not reach the brainReceptor potential generates :-a- an electrotonic current which is transmitted along sensory fibers to the CNSb- a nerve impulse at the receptive region of the receptorc- a state of hyperpolarization of the receptor membraned- a nerve impulse at the spike initiating region of the receptor