neural control and coordination
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| 🇬🇧 | 🇬🇧 |
| Sensation of stomach pain is due to | Interoceptors |
| The 5th cranial nerve of frog is called | Trigeminal nerve |
| Excessive stimulation of vagus nerve in humans may lead to | Irregular contraction of diaphragm |
| A person is wearing spectacles with concave lenses for correcting vision. while not using the glasses, the image of a distant object in his case will be formed | On the yellow spot |
| Unidirectional transmission of a nerve impulse through nerve fibre is due to the fact that | Neurotransmitters are released by the axon endings and not by dendrites |
| Uses _______________ to dilate the pupil of the eye an uses ____________ to constrict the pupil of the eye | Sympathetic nervous system, parasympathetic nervous system |
| Bipolar nerve cells are present in | Retina of eye |
| Multipolar nerve cells are present in | Dorsal root ganglia of spinal cord |
| Neurons recieve signals through their____ and send signals to other neurons through their ______ | Cell bodies and denrites, axons |
| Receptor sites for neurotransmitter are present on | Post synaptic membrane |
| When a neuron is in resting state the axonal membrane is | Comparatively more permeable to K+ ions and nearly impermeable to Na+ ion |
| During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric change? | First negative, then positive and again back to negative |
| In a man, abducens nerve is injured. which one of the following functions will be affected ? | Movement of the eye ball |
| One of the examples of the action of ANS is | Peristalsis of the intestine |
| CNS is mostly made of | Associated neurons |
| One function of parasympathetic neurons system is | Constriction of pupil |
| Ivan pavlov performed experiments on | Conditioned reflexes |
| Good vision depends on adequate intake of carotene rich food | Vitamin A derivatives are formed from carotene retinal is a derivative of vitamin A retinal is a light absorbing part of the visual photopigments |
| Photosensitive compounds in human eye is made up of | Opsin and retinal |
| A gymnast is able to balance his body upside down even in the darkness because of | Vestibular apparatus |
| Which one of the following is the correct difference between rod cells and cone cells of our retina | Visual acuity; rod cells high , cone cells low |
| Retina is most sensitive at | Fovea centralis |
| Iris is part of | Sclerotic and choroid |
| Afferent nerve fibre carries impulses from | Receptor to central nervous system |
| The parts of the neurons that perform basic cellular functions such as protien synthesis are the | Soma |
| If myelin sheath is continued in myelinated nerve fibre than what will happen in neural conduction | Conduction is stopped |
| Cerebral hemisphere of mammals consist of | Outer gray matter and central white matter |
| Foramen of monro is an aperture found between | Lateral venttricle and third ventricle |
| Arbor vitae is present in | Cerebellum |
| The gray matter differs from white matter in the | Absence of myelin sheath |
| Broca's area is located in | Lateral part of frontal lobe |
| When medulla oblongata is compressed then what happens | Immediately dies |
| Ventral root of spinal nerve has | Motor fibres |
| A ramus communicans consists of | White and gray ramus |
| Purely motor cranial nerves includes | 3,4,6 and 11 |
| Which nerve is purely motor | Abducens |
| The 3rd, 6th and 11th cranial nerve in mammals are respectively | Occulomotor, abducens and spinal accessory |
| Optic nerve is the | Second cranial nerve |
| Smallest cranial nerve | Abducens |
| The two additional cranial nerves present in mammals are | Spinal accessory and hypoglossal |
| The cranial and spinal nerves are included under | Peripheral nervous system |
| The focal length of the lens in eye is controlled by | Ciliary muscles |
| Which of the following processes occurs in only animals | Nervous control |
| Drinking of alcohol severely affects | Cerebellum |
| Sight of delicious food usually makes mouth watery it is a | Neural response |
| Epithalamus is situated on the | Roof of diencephalon |
| Which structure helps a person to maintain equilibrium | Semicircular canals |
| Three layers in eye ball from inside to outside are | Retina,choroid and sclerotic |
| The tympanic cavity is | Middle ear |
| Space between cornea and lens | Aqueous chamber |