Nervous System Flashcards
Where is Broca’s Area located?
Frontal Lobe
What is the role of Exener’s Area?
Plan and Execute Hand Movements
Where is Wernicke’s Area?
Temporal Lobe
What Cortex is Wernicke’s Area Associated with?
Auditory
What connects Broca’s and Wernicke’s?
The Arcuate Fasciculus
What results in motor aphasia?
A lesion in Broca’s
What results in sensory aphasia?
A lesion in Wernicke’s
Upper motor neurons are associated with…
Spastic paralysis
Lower motor neurons are associated with…
Flaccid paralysis
Efferent nerves travel in the
dorsal root (as they are motor output)
Discriminative touch is associated with…
Touch and pressure
The innermost layer of the spinal cord is…
Pia Mater
Where are the cell bodies of somatic motor neurons located?
Anterior grey horn
Where are the cell bodies of autonomic motor neurons located?
Lateral grey horn
Gracile nucleus is associated with…
Lower limbs
1st order neurons of the medial lemniscal pathway terminate where?
gracile/cunneate nucleus
Where does the medial lemniscus run from and to?
The gracile/cunneate nucleus to the thalamus
Where do neurons for discriminative sensation decussate?
Internal arcuate fibers
What information is carried via the Spinothalamic tract?
pain and temperature
Where do pain and temperature 2nd order neurons travel to and from?
The grey matter of the spinal cord to the thalamus
Where do spinothalamic neurons decussate?
Anterior white commissure
A lesion on the spinal cord results in…
Dissociative sensory loss
Loss of opposite sides of. body for different lesion locations occurs in the…
Medial lemniscal pathway
Where are lower motor neurons located?
In lamina 8 and 9 of the spinal cord
