Exam 2 Flashcards
Select all that apply: Tastant information from taste cells is carried in which of the following:
- Vesibulo-Cochlear Nerve CN8
- Olfactory Nerve CN1
- Trochlear Nerve CN4
- Facial Nerve CN7
- Trigeminal Nerve CN5
- Glossopharyngeal CN9
- Hypoglossal CN12
- Vagus CN10
- Facial Nerve CN7
- Glossopharyngeal CN9
- Vagus CN10
Which of the following presents the steps of odorant signal transduction in the correct order?
- AC activates cAMP, Golf becomes active, Calcium opens calcium-gated Cl- channels so Cl- leaves cell, Voltage-gated sodium channels open
- AC activates cAMP, Volage gated sodium channels open, Gold becomes active, Calcium opens calcium gated Cl- cahnnels so Cl- leaves cell
- Golf becomes active, Calcium opens calcium-gated Cl-channels so Cl- leaves cell, AC activates cAMP, Voltage-gated sodium channels opn
- Calcium opens calcium-gated Cl-channels so Cl-leaves cell, Golf becomes active, AC activates cAMP, Voltage-gated sodium channels open
- Golf becomes active, AC activates cAMP, Calcium opens calcium gated Cl- channels so Cl- leaves cell, Voltage-gated sodium channels open
-Golf becomes active, AC activates cAMP, Calcium opens calcium gated Cl- channels so Cl- leaves cell, Voltage-gated sodium channels open
Which cells do olfactory receptor neurons synapse on?
- periglomerular cells
- granule cells
- trufted cells
- mitral cells
mitral cells
T/F: A glomerulus contains the dendritic bush of one mitral cell but many olfactory receptor axons
TRUE
The ____is most important for learning odorant combinations of different things (combinatorial coding)
- entorhinal cortex
- insular cortex
- orbitofrontal cortex
- pyriform cortex
-pyriform cortex
The ____ seems to be particularly active during smell anticipation
- amygdala
- orbitofrontal cortex
- entorhinal cortex
- pyriform cortex
-entorhinal cortex
Taste and olfactory information are combined in the ___________
orbitofrontal cortex
Cranial nerves carrying taste information synapse in ________
- inferior colliculus
- solitary nucleus
- nucleus of the lateral lemniscus
- ciliary ganglion
-solitary nucleus
Which nucleus of the thalamus is responsible for receiving and relaying taste information?
- mediodorsal nucleus
- ventral posterior medial nucleus
- none of these are correct
- ventral posterior lateral nucleus
-ventral posterior medial nucleus
Which part of the cortex is considered the primary taste/gustatory cortex?
- orbitofrontal cortex
- entorhinal cortex
- prefrontal cortex
- insular cortex
-insular cortex
Which tastant receptors are GPCRs (select all that apply)
- sweet
- bitter
- sour
- salt
- umami
- sweet
- bitterq
- umami
Which structure has the biggest role in learning taste and olfactory aversions?
amygdala
Which fibers carry touch information?
- C fibers
- Sensory afferent la fibers
- A-delta fibers
- A-beta fibers
-A-beta fibers
Which of the following are rapidly-adapting? (select all that apply)
- Meissner’s corpuscles
- Merkel cells
- Pacinian corpuscles
- Ruffini corpuscles
- Meissner’s corpuscles
- Pacinian corpuscles
Which of the following monitor skeletal muscle length?
- Golgi tendon organs
- muscle spindles
- all of these monitor changes in muscle length
- joint capsule receptors
-muscle spindles
Tactile information from the lower limbs synapses in the ______ where as tactile information from the upper limbs synapses in the ____, after which they ascend towards the thalamus
gracile nucleus
cuneate nucleus
Second order neurons in the spinal cord that carry tactile information from the body _______ the midline before they ascend to form the ________
cross
medial lemniscus
Tactile information from the face is carried by the
- lateral spinothalamic tract
- trigeminothalamic system
- dorsal column-medial lemniscus
- anterior spinothalamic tract
-trigeminothalamic system
Which part of the thalamus is responsible for receiving and relaying somatosensory information from the body?
- mediodorsal nucleus
- ventral posterior medial nucleus
- ventral posterior lateral nucleus
- medial geniculate nucleus
-ventral posterior lateral nucleus
Where are the bodies of the cells that innervate proprioceptors of the face located?
- mesencephalic trigeminal nucleus
- principal nucleus
- trigeminal ganglia
- cervical dorsal root ganglia
-mesencephalic trigeminal nucleus