In which animal is nerve cell present but brain absent
In which animal is nerve cell present but brain absent? Options (a) Sponge (b) Earthworm (c) Cockroach (d) Hydra Correct…
4 years ago
Neural Control and Chemical Coordination
In vertebratessimple reflex action is
In vertebrates,simple reflex action is Options (a) polysynaptic (b) bisynaptic (c) trisynaptic (d) monosynaptic Correct Answer: monosynapticExplanation:A reflex action is…
4 years ago
In the myopia eye defect the rays of light
In the myopia eye defect, the rays of light Options (a) Do not enter the eye at all (b) Come…
4 years ago
In saltatory conduction of impulse
In saltatory conduction of impulse Options (a) time is conserved (b) energy is conserved (c) both time and energy are…
4 years ago
In parasympathetic nervous system which of the following is released
In parasympathetic nervous system which of the following is released? Options (a) epinephrine (b) norepinephrine (c) serotonin (d) acetylcholine Correct…
4 years ago
In man which one of the following cranial nerve is associated with the sense
In man which one of the following cranial nerve is associated with the sense of body balance? Options (a) VI…
4 years ago
In mammalian ear a membranous structure which separate the scala vestibuli
In mammalian ear, a membranous structure which separate the scala vestibuli and scala media is Options (a) Basilar membrane (b)…
4 years ago
In humans lipofucsin granules are found in
In humans, lipofucsin granules are found in Options (a) nerve cells (b) cardiac muscle (c) red muscle (d) cartilage Correct…
4 years ago
In humans aqueduct of sylvius is found in
In humans, aqueduct of sylvius is found in Options (a) heart (b) kidney (c) lung (d) brain Correct Answer: brainExplanation:Cavity…
4 years ago
In a neuron the concentration of intracellular potassium and extracellular
In a neuron the concentration of intracellular potassium and extracellular sodium is in a ratio of Options (a) 1:1 (b)…
4 years ago