Neuroscience is the scientific study of the brain and its impact on cognitive functions and behavior. This multidisciplinary science combines many sub-fields such as molecular biology, anatomy, physiology, biology, cytology, etc. What do you know about this topic? Let's find out with this test.
Primary afferents have their cell bodies in the dorsal horn of the spinal cord
The trigger zone of primary afferents can be far from the cell body
Primary afferents use only graded potentials
Primary afferents are not myelinated
Communicate directly with efferents of the autonomic nervous system
Transmit information from the periphery to the CNS
Typically use action potentials to transmit information over long distances
Typically use graded potential to release neurotransmitters in proportion to the strength of stimulus
Hearing
Smell
Taste
Touch
Vision
Perception is a function of cortical processing
Cranial nerve damage would alter sensation but not perception
Perception occurs in the PNS
Sensation can be influenced by brain injury while perception cannot
The vestibular system controlling ocular muscles
The smell of lavender causing feelings of calm
Pain causing an increase in heartrate
A salty taste causing salivation
The hot tub feeling painful at first but then normal after a few minutes
A loud noise causing the reflex turning of the head
Feeling your ring when you first put it on but not later in the day
Seeing better in darkness after a few minutes
Are bundles of afferents only
Branch off of the spinal cord
Have efferent and/or afferent components
Are bundles of efferents only
Taste buds contain sensory cells that release neurotransmitters to gustatory afferents
Taste buds contain basal cells that release neurotransmitters to gustatory afferents
Taste buds are exposed to tastants at their basal pole
Taste buds are the little bumps on your tongue
Protons cause depolarization by entering sensory cells through sodium channels and by closing potassium channels
Protons cause depolarization of sensory cells by binding to GPCRs
Protons cause depolarization of sensory cells by blocking sodium channels
Protons cause depolarization by entering sensory cells through sodium channel by opening potassium channels
Olfactory sensory cells are nor found next to supporting cells
Olfactory sensory cells do not use GPCRs
Olfactory cells detect one odorant; taste cells can detect many tastants
Olfactory sensory cells are not depolarized by the molecules they sense
True
False
A synaptic location in the olfactory bulb that receives input from sensory cells with a particular odorant receptor
A unit of the olfactory bulb that is activated in response to a particular chemical feature on an odorant
A neural unit within the olfactory bulb whose relative activation is coded along with all of the others to elicit the perception of distinct smells
All of the above
Salty
Sweet
Sour
Bitter
Umami
Alkaloids bind to GPCRs, which stimulates hyperpolarization
Amino acids bind to GPCRs, which stimulates hyperpolarization
Alkaloids bind to GPCRs, which stimulates depolarization
Amino acids bind to GPCRs, which stimulates depolarization
Olfactory nerve (I)
Optic Nerve (II)
Facial nerve (VII)
Vestibulochlear (VIII)
No pain in the right leg, no touch sensation in the right leg
No pain in the left leg, no touch sensation in the right leg
No pain in the right leg, no touch sensation in the left leg
No pain in the left leg, no touch sensation in the left leg
C fibers are faster than A-delta fibers
C fibers are slower than A-delta fibers
Pain signals are slowed by descending modulation
The spinothalamic tract is faster than the lemniscal tract
Light activates opsin, opens sodium channels, depolarization
Light activities opsin, opens potassium channels, hyperpolarization
Light activities opsin, closes sodium channels, hyperpolarization
Light activities opsin, closes chloride channels, depolarization
Hypothalamus
Pretectum/midbrain
Occipital lobe
Superior colliculus
Hypothalamus
Inferior colliculus
Temporal lobe
Parietal lobe
Lateral
Medial
Superior
Inferior
The semicircular canals
The cochlea
The utricle
The saccule
Voltage gated sodium channel
Chemical activation of a GPCR
Mechanically gated ion channel
Closure of a chloride channel
High amplitude sound waves are detected toward the base of the cochlea
Low amplitude sound waves cause hair cell hyperpolarization
High frequency sound waves cause greater hair cell depolarization
The primary auditory cortex is organized according to sound wave frequency
Spinothalamic afferents can sense a range of temperature
Genetic loss of a single type of opsin affects perception of multiple colors
Taste sensory cells express one type of taste receptor
Olfactory sensory cells signal to organized areas of the olfactory bulb
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