52 Questions
Which lobe of the cerebral cortex is responsible for higher mental functions?
Frontal lobe
Which lobe of the cerebral cortex integrates sensory information from different modalities?
Parietal lobe
Which lobe of the cerebral cortex is the visual processing center?
Occipital lobe
Which part of the nervous system is responsible for responding to and moving about in our environment?
Motor Division
What is the chief excitatory transmitter in the central nervous system?
Glutamate
Which ion is involved in creating an inhibitory post synaptic potential (IPSP)?
Chloride
What type of summation occurs when EPSPs created by distant synapses overlap?
Spatial Summation
Which type of sensory receptor detects change in temperature?
Thermoreceptors
What is the term used to describe the principle that each receptor responds to a limited range of stimuli and has a direct line to the brain?
Labeled-line principle
What generates receptor potentials in sensory receptors?
All of the above
Which type of receptor adapts rapidly and only responds when change is taking place?
Rapidly adapting receptors
Which type of transmitter is usually inhibitory in the central nervous system (CNS)?
Glycine
What is the main function of small molecule, rapidly acting transmitters in the CNS?
Mediate most acute responses of the nervous system
What is the mechanism for synaptic facilitation?
Build-up of calcium ions in presynaptic terminals
What is the effect of acidosis on neuronal activity?
Depresses neuronal activity
Which two pathways are responsible for transmitting sensory information to the cortex?
Anterolateral system and dorsal column-medial lemniscal system
Which pathway transmits touch, vibration, and discrete types of mechanoreceptor information with a high degree of spatial fidelity?
Dorsal column-medial lemniscal system
Which pathway transmits pain, thermal sensations, crude touch and pressure, and tickle with a low degree of spatial orientation?
Anterolateral system
Which type of somatic sensation is stimulated by mechanical displacement?
Mechanoreceptive
Which type of tactile receptor is responsible for motion detection and grip control?
Meissner corpuscles
Which type of tactile receptor is characterized by rapid adaptation and perception of form and texture?
Merkel discs
Which type of tactile receptor is responsible for perception of distant events through transmitted vibrations?
Pacinian corpuscles
Which lobe of the cerebral cortex is responsible for auditory perception, semantics, and memory?
Temporal lobe
Which type of artery supplies blood to the frontal lobe of the cerebral cortex?
Anterior cerebral artery
Which type of sensory information does the parietal lobe of the cerebral cortex integrate?
Sensory information from different modalities
Which type of artery supplies blood to the occipital lobe of the cerebral cortex?
Posterior cerebral artery
Which type of sensory receptor is responsible for motion detection and grip control?
Proprioceptor
Which type of receptor is responsible for motion detection and grip control?
Mechanoreceptors
What is the effect of alkalosis on neuronal excitability?
Increases neuronal excitability
Which lobe of the cerebral cortex is responsible for visual processing?
Occipital lobe
What is the main function of neuropeptides as neurotransmitters?
Cause long-term changes in the number of neuron receptors
Which pathway is responsible for transmitting pain, thermal sensations, crude touch and pressure, and tickle with a low degree of spatial orientation?
Spinothalamic pathway
Which part of the nervous system is responsible for subconscious body activities such as arterial pressure and respiration?
Lower brain level
Which neurotransmitter is the chief inhibitory transmitter in the adult central nervous system?
GABA
Which type of potential change does not reach the threshold for firing an action potential?
Subthreshold potential change
Which ion is involved in creating an excitatory post synaptic potential (EPSP)?
Sodium (Na+)
Which type of summation occurs when postsynaptic potentials created by multiple terminals of a single presynaptic neuron overlap?
Spatial summation
Which type of somatic sensation detects pain and any factor that damages tissue?
Nociceptive
Which type of tactile receptor is responsible for skin motion and low frequency vibration?
Meissner corpuscles
Which type of tactile receptor has a receptive field of 22 mm2 and detects edges, points, corners, and curvature?
Merkel discs
Which type of tactile receptor is characterized by slow adaptation and perception of form and texture?
Ruffini corpuscles
Which type of sensory receptor is responsible for detecting pain, temperature, and itch?
Free nerve endings
Which type of receptor detects damage and is responsible for the perception of pain?
Nociceptors
What determines how a sensation is perceived by the brain?
Both the characteristics of the receptor and the central connections of the axon
What is the term used to describe the principle that each receptor responds to a limited range of stimuli and has a direct line to the brain?
Labeled-line principle
What generates receptor potentials in sensory receptors?
All of the above
Which type of receptor adapts slowly and continues to transmit impulses to the brain for long periods of time while the stimulus is present?
Slowly adapting receptors
Which pathway contains large myelinated nerve fibers and transmits touch, vibration, and discrete types of mechanoreceptor information with a high degree of spatial fidelity?
Dorsal column-medial lemniscal system
Which pathway contains smaller myelinated and unmyelinated fibers and transmits pain, thermal sensations, crude touch and pressure, and tickle with a low degree of spatial orientation?
Anterolateral system
Which system decussates in the medulla oblongata?
Dorsal column-medial lemniscal system
Which system decussates in the spinal cord?
Anterolateral system
Which part of the cerebral cortex receives information from the opposite side of the body?
Sensory cortex
Test your knowledge of sensory receptors with this quiz! Learn about different types of sensory receptors including mechanoreceptors, thermoreceptors, nociceptors, electromagnetic receptors, and chemoreceptors. Explore how these receptors detect various stimuli such as deformation, temperature change, pain, light, taste, and smell. Challenge yourself to identify the locations of skin sensory receptors in the fingertip.
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