Biology
Nervous System Physiology
1,858 Questions
Enhance your knowledge of human neurobiology through questions on nervous system physiology. The topics cover brain anatomy, sensory modalities, and the neural mechanisms controlling speech and language. This resource is ideal for students preparing for medical and general science exams.
Brain anatomy and regionsNeural mechanismsLanguage processingSensory functions
Nervous System Physiology Questions
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Cerebral fluid
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Cerebrospinal fluid
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Meningial fluid
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Synovial fluid
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Acetylcoline
B
Correct answer
Explanation
Cerebrospinal fluid is filled in the space between covering membranes, which protects the brain from shocks.
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Olfactory bulb
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Olfactory tract
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Optic chiasm
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Optic tract
D
Correct answer
Explanation
It is defined as the part of the visual system in the brain.
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Basal nucleus of Meynert
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Substantia nigra
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Mammillary bodies
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Subthalamic nucleus
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Right posterior parietal cortex
E
Correct answer
Explanation
Damage to the right posterior parietal cortex can produce a variety of sensorimotor deficits encompassing deficits in the perception and memory of spatial relationships, in accurate reaching and grasping, in the control of eye movement and in attention.
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LGN nucleus
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MGN nucleus
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VAN nucleus
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MD nucleus
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VPL nucleus
B
Correct answer
Explanation
MGN stands for the medial geniculate nucleus. It is a vital part of the auditory thalamus and represents the thalamic communication between the inferior colliculus and the auditory cortex.
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pars disseminata
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pars distalis
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pars flaccida
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pars infundibularis
D
Correct answer
Explanation
This is a neural stalk connecting the neurohypophysis with the hypothalamus.
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Cerebellar peduncle
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Cerebral peduncle
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Cerebral aqueduct
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Cerebral hemispheres
B
Correct answer
Explanation
It is a large fibre bundle, which conjoins the forebrain with the hindbrain. It accomodates axons that control voluntary movement of the body.
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Frontal lobe
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Parietal lobe
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Occipital lobe
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Temporal lobe
A
Correct answer
Explanation
Frontal lobe of the cerebral cortex is affliated with reasoning, planning, parts of speech, movement, emotion and problem solving skills of an individual.
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thalamus
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hypothalamus
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amygdala
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hippocampus
D
Correct answer
Explanation
It is the portion of the cerebral hemisphers in the temporal lobe. It is needed for learning and memory and for converting short term memory into permanent memory, and for reminding, spatial relationships in the world about us.
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Corpus callosum
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Cerebral ventricles
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Neuroglia
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Cerebral cortex
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Arachnoid mater
A
Correct answer
Explanation
Corpus callosum is a thick band of nerve fibers that divides the cerebrum into left and right hemispheres. It connects the left and right sides of the brain allowing for communication between both hemispheres. The corpus callosum transfers motor, sensory and cognitive information between the brain hemispheres.
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ECG
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Habituation
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EMG
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EEG
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Sinus venosus
D
Correct answer
Explanation
Electroencephalography (EEG) refers to the recording of the brain's spontaneous electrical activity over a short period of time, which is usually 20 to 40 minutes as recorded from multiple electrodes placed on the scalp. EEG used to be a first line method for the diagnosis of tumors, stroke and other focal brain disorders. It is also used in the diagnosis of coma, encephalopathies, and brain death.
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Forebrain
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Tectum
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Tegmentum
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Pons
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Microgli
A
Correct answer
Explanation
The forebrain is the largest part of the brain, most of which is made up of the cerebrum. Other important structures found in the forebrain include the thalamus, the hypothalamus and the limbic system.
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Hindbrain
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Tectum
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Tegmentum
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Forebrain
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Midbrain
D
Correct answer
Explanation
The limbic system is a complex set of brain structures that lies on both sides of the thalamus right under the cerebrum. The forebrain is the largest part of the brain, most of which is made up of the cerebrum. The important structures found in the forebrain include the thalamus, the hypothalamus and the limbic system.
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Frontal lobe
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Parietal lobe
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Occipital lobe
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Temporal lobe
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Limbic system
C
Correct answer
Explanation
The occipital lobe is the visual processing center of the mammalian brain containing most of the anatomical region of the visual cortex. The primary visual cortex is brodmann area 17 commonly called V1 (visual one). Human V1 is located on the medial side of the occipital lobe within the calcarine sulcus.
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Cerebellum
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Cerebrum
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Hypothalamus
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Medulla oblongata
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Thalamus
E
Correct answer
Explanation
It is involved in sensory perception and regulation of motor functions. The thalamus also plays an important role in regulating states of sleep and wakefulness. Thalamic nuclei have strong reciprocal connections with the cerebral cortex and forming thalamo cortico thalamic circuits that are believed to be involved with consciousness. The thalamus plays a major role in regulating arousal, the level of awareness, and activity. Damage to the thalamus can lead to permanent coma.
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Olfactory lobes
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Optical lobes
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Cerebellum
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Paired cerebral hemispheres
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Medulla oblongata
B
Correct answer
Explanation
This is the correct option as optical lobes are a part of the midbrain of a frog.