If a personality have a spinal cord injury at C4, would this interrupt the Patellar reflex? Why or why not?
Answers: it would depend on "injury". If the c4 is severed, then the Patellar reflex would certainly be interrupted (patellar reflex is a quick shake response: a spinal reflex of the L4 segment; an upper-motoneuron lesion as in C4 would cause hyperreflexia). if "injury" is a herniation of a disc, then I don't construe it'll change much - but it could cause somewhat of an increase.
All I remember from my EMS classes on the subject is:
"Three, four five, stay alive" C3-5 channel some of the most key signals in the body, such as those controlling breathing and heartbeat. So you'll be in very serious trouble next to C4 injured, and possibly have no reflexes or motion at all.
I hope this help!
The information post by website user , Helpde.com not guarantee correctness.