In nerve , the magnitude of the action potential overshoot is normally a function of the______________?
A. Magnitude of the stimulus
B. Intracellular potassium concentration
C. extracellular sodium concentration
D. resting membrane potential
A. Magnitude of the stimulus
B. Intracellular potassium concentration
C. extracellular sodium concentration
D. resting membrane potential
A. Has dense Nissl grandules
B. Has no Nissl granules
C. Is at commencement of dendrites
D. Is round in shape
Axon hillock is part of the soma of neuron which________________? Read More »
Central Nervous System, Medical Mcqs, Physiology Mcqs A. Subfornical region
B. Habenuclear trigone
C. Area posterma
D. Neurohypophysis
Blood brain barriers is absent in all of the following areas except__________________? Read More »
Central Nervous System, Medical Mcqs, Physiology Mcqs A. Thalamus
B. Area 3,1,2
C. Areas 5,7
D. Pulvinar
Epicrritic perception of pain occurs at the level of______________? Read More »
Central Nervous System, Medical Mcqs, Physiology Mcqs A. Loss of function of Thalamus
B. Loss of function of Hypothalamus
C. Loss of function of cerebellum
D. Loss of function of Basal ganglia
Intention tremor is a feature of _______________? Read More »
Central Nervous System, Medical Mcqs, Physiology Mcqs A. Neurolemma
B. Perineurium
C. Axolemma
D. Myelin sheath
The most outer covering of nerve fibres is called as____________? Read More »
Central Nervous System, Medical Mcqs, Physiology Mcqs A. More than 14 cycles per second
B. Between 8 and 13 cycles per second
C. Less than 3.5 cycles per second
D. Between 4 and 7 cycles per second
Delta waves of Electroencephalogram have frequency of ______________? Read More »
Central Nervous System, Medical Mcqs, Physiology Mcqs A. Pacinian corpuscles
B. End organs of Ruffini
C. End bulbs of Krause
D. Free nerve endings
Sensory receptors for pain are_______________? Read More »
Central Nervous System, Medical Mcqs, Physiology Mcqs A. Sweating
B. Vasodilatation
C. Decrease heat production
D. Non- shivering thermogenesis
The first physiological response to high environmental temperature is_______________? Read More »
Central Nervous System, Medical Mcqs, Physiology Mcqs A. Tactile sensation
B. Melanophage
C. Chemoreceptor
D. Proprioception
function of Merkel’s cells is_______________? Read More »
Central Nervous System, Medical Mcqs, Physiology Mcqs