Flashcards in Lecture 27: Organ Nerve Root Values Deck (26):
Large intestine to splenic flexure
Large Intestine to rectum
What happens inside the IVF
Spinal nerve is born, called the radical. Created from the ventral root and dorsal root combining. Also where the radicular arteries enter the vertebral column to meet the spinal cord.
Sensory information from the skin, as well as muscle sense, tendon sense and joint sense from deeper structures
What does the ANS innervate
Smooth muscle, glands,
Is the vagus parasympathetic or sympathetic?
Where are there intermediolateral nuclei?
From T1-L2, but the sympathetic chain ganglion can exist in higher cervical areas or lower lumbar areas. There are only grey and white communicans T1-L2.
Do GVAs express pain?
No they do not. They express pain through GSAs through referred pain.
Can GSAs express reffered pain?
Yes they can to other somatics. Example is the phrenic nerve to the diaphragm, pain is felt in the C3, C4, C5 dermatomes.
Where is T10 dermatome
above the belly button
Where is T4 dermatome
Where is T6 dermatome
late pain vs. reffered pain
referred pain is felt early on, in the nerve specific dermatome. Late pain is felt later, and is activiated through a nearby GSA nerve that is in the muscle/dermatome
What is the sympathetic highway?
The GVEs have specific root values, and then they descend down to their effectors through a two nerve system. GVAs travel back up from the effector back to the DRGs that have the same root values. They then activate GSAs in those DRGs, leading to the referred pain patterns.