Podcast
Questions and Answers
Where are the cell bodies of afferents in the trigeminal nerve (except those conveying proprioception) located?
Where are the cell bodies of afferents in the trigeminal nerve (except those conveying proprioception) located?
Which nucleus mediates fine touch stimuli, joint position, and vibration in the trigeminal nerve pathway?
Which nucleus mediates fine touch stimuli, joint position, and vibration in the trigeminal nerve pathway?
The trigeminothalamic tract provides somatic sensation to which parts of the body?
The trigeminothalamic tract provides somatic sensation to which parts of the body?
Where does the spinal nucleus of the trigeminal nerve extend into?
Where does the spinal nucleus of the trigeminal nerve extend into?
Signup and view all the answers
Which part of the brain stem houses the trigeminal sensory nucleus?
Which part of the brain stem houses the trigeminal sensory nucleus?
Signup and view all the answers
Which nucleus mediates pain and temperature sensations in the trigeminal nerve pathway?
Which nucleus mediates pain and temperature sensations in the trigeminal nerve pathway?
Signup and view all the answers
Where does the central process make synaptic connections that mediate spinal reflexes and intersegmental coordination?
Where does the central process make synaptic connections that mediate spinal reflexes and intersegmental coordination?
Signup and view all the answers
Where does the second neuron have its cell body?
Where does the second neuron have its cell body?
Signup and view all the answers
Which structure does the Axon of the third neuron pass through before reaching the somatosensory cortex?
Which structure does the Axon of the third neuron pass through before reaching the somatosensory cortex?
Signup and view all the answers
What is the function of the dorsal (posterior) columns in the spinal cord?
What is the function of the dorsal (posterior) columns in the spinal cord?
Signup and view all the answers
Where does the main fiber of the central process remain?
Where does the main fiber of the central process remain?
Signup and view all the answers
Which part of the central nervous system does the Axon of the second neuron cross over to?
Which part of the central nervous system does the Axon of the second neuron cross over to?
Signup and view all the answers
Where are the cell bodies of proprioceptive afferents from the muscles of mastication and the temporomandibular joint located?
Where are the cell bodies of proprioceptive afferents from the muscles of mastication and the temporomandibular joint located?
Signup and view all the answers
Where do the axons of 2nd order neurons in the trigeminal nucleus decussate?
Where do the axons of 2nd order neurons in the trigeminal nucleus decussate?
Signup and view all the answers
Where do 3rd order neurons in the thalamus project to?
Where do 3rd order neurons in the thalamus project to?
Signup and view all the answers
Which part of the brain houses the mesencephalic nucleus of the trigeminal?
Which part of the brain houses the mesencephalic nucleus of the trigeminal?
Signup and view all the answers
Which structure receives input from 2nd order neurons in the trigeminal nucleus?
Which structure receives input from 2nd order neurons in the trigeminal nucleus?
Signup and view all the answers
What is the function of 3rd order neurons in the thalamus?
What is the function of 3rd order neurons in the thalamus?
Signup and view all the answers