Somatosensory pathways Flashcards
Where do axons from receptors enter, and from where?
Axons from receptors enter the spinal cord through the dorsal root of spinal nerves
Axons from receptors of___and___go through_____
- axons from receptors of face and head go through trigeminal nerve (cranial nerve 5)
Fine touch and kinesthesia: Where does it start or ascend from?
Ascend in dorsal columns of spinal cord
Fine touch and kinesthesia: From dorsal columns of spinal cord to
nuclei in medulla
Fine touch and kinesthesia: from nuclei in medulla to
cross to other side
Fine touch and kinesthesia: after crossing to the other side
ventral posterior thalamus
Fine touch and kinesthesia: From ventral posterior thalamus
to primary somatosensory cortex
Fine touch and kinesthesia: from primary somatosensory cortex to
association somatosensory cortex
Pain and temperature: Start
Synapse and cross immediately after entering spinal cord; provides sensory input for reflexes
Pain and temperature: From synapse crossing after entering spinal cord to
ascend in spinothalaic tract of spinal cord
Pain and temperature: ascend in spinothalaic tract of spinal cord to
ventral posterior thalamus
Pain and temperature: from ventral posterior thalamus to
primary somatosensory cortex
Pain and temperature: primary somatosensory cortex to
association somatosensory cortex
