TA Final Review Slides: Unit 6 Flashcards
_____ is the conscious awareness and interpretation of _____, which is the conscious or subsoncious awareness of change in external or internal environment.
A. Sensation , Stimulus
B. Perception, Stimulus
C. Perception, Sensation
D. Sensation, Perception
C. Perception, Sensation
Somatic receptors would adapt____qucikly to pressure than blood sugar levels.
A. More
B.Less
C. equally
A. More
A pressure stimulus would be received by a neuron with ____ nerve endings.
A. Free
B. Encapsulated
C. Specialized
B. Encapsulated
Which type of primary affernt axon fiber is most likely to carry information about extreme temperature?
A. A-alpha
B. A-Beta
C. A-Delta
D. C fibers
C. A-Delta
In somatic sensory pathways, the first-order neuron is always:
A. The thalamus to the primary somatosensory area of the cortex
B. Brain stem or spinal cord to the thalamus
C. Somatic receptor to the brain stem or spinal cord
C. Somatic receptor to the brain stem or spinal cord
Which of the following is a commonality between the dorsal column medial leminscal pathway and the spinothalamic pathways?
A. Transmit touch, pressures, vibration, and proprioception
B. Transmit pain, thermal, itch and tickle
C. Second-order neurons decussate in the spinal cord
D. Information comes from the limbs, trunk, neck, and posterior head
D. Information comes from the limbs, trunk, neck, and posterior head
The trigeminothalamic pathway carries sensation of ____, and has decussation of second -order neurons in____.
A. Touch, pressure, vibration, and proprioception in the face
B. All sensory modalities in the face
C. Medulla
D. Pons
E. Spinal cord
F. Medulla or pons
B. All sensory modalities in the face
F. Medulla or pons
What is this pathways?
encapsulated 1st order neurons ascending the spinal cord synapsing with a 2nd order neuron passing through the dorsal column nuclei which decussations and synapses with 3rd order neuron in the thalamus which travels to the grey matter of cerebral cortex
A. Dorsal column medial lemniscus
B. Trigeminothalamic
C. Spinothalamic
D.Corticobulbar
E. Corticospinal
A. Dorsal column medial lemniscus
*know because passes through dorsal column nuclei
Where does the second order neuron decussation in the Dorsal column medial lemniscus pathways?
Medulla
What information travels along the dorsal column medial lemniscus pathway?
A. All sensory information of the face
B. Pain, itch, thermal, tickle from he limbs, trunk, post.head
C. Touch, vibration, pressure, proprioception from the limbs, trunk, post.head
C. Touch, vibration, pressure, proprioception from the limbs, trunk, post.head
What is this pathways?
*Free ending 1st order neuron, synapses with a 2nd order neuron that decussates at the level of the spinal cord, which ascends up the spinal cord until it synapses with a 3rd order neuron in the thalamus where it then travels to the grey matter of the cerebral cortex.
A. Dorsal column medial lemniscus
B. Trigeminothalamic
C. Spinothalamic
D. Corticobulbar
E. Corticospinal
C. Spinothalamic
Where does the spinothalamic pathway decussate?
in spinal cord
What information travels along the spinothalamic pathway?
A. All sensory information
B. Pain, itch, thermal, tickle from the limbs, trunk, post. head
C. Touch, vibration, pressure, proprioception from the limbs, trunk, post. head
B. Pain, itch, thermal, tickle from the limbs, trunk, post. head
What is this pathway?
*Large mechanoreceptor receptor axons from the face 1st order neuron synapses with a 2nd order neuron in the medulla, which decussates and then ascends the spinal, synapsing with a 3rd order neuron in the thalamus, which travels to the grey matter of the cerebral cortex.
A. Dorsal column medial lemniscus
B. Trigeminothalamic
C. Spinothalamic
D. Corticobulbar
E. Corticospinal
B. Trigeminothalamic
Where does the trigeminothalamic pathway decussate?
in the medulla or the pons
