Concept explainers
To discuss:
Spinal gating mechanisms that modify a person’s sense of pain and awareness of body injury.
Introduction:
Structures that are specialized for the detection of a stimulus such as pain and heat are referred to as a sensory receptor. Such receptors can either be real sense organs or simple nerve endings. A sensory receptor converts energy from one form to another. It is involved in the conversion of various forms of stimulus energy, including sound, light, heat, vibration, and touch into nerve signals. Pain indicates the discomfort that typically leads to evasive action. It is caused by noxious stimulation and injury in tissues. The nociceptors indicate the pain receptors that respond to the injuries in tissues and situations that lead to the tissue damage. They occur in the protective tissue called meninges and are responsible for headaches. Nociceptors are tonic receptors since the brain must be aware of the pain all the time.
Want to see the full answer?
Check out a sample textbook solutionChapter 16 Solutions
ANATOMY AND PHYSIOLOGY THE UNITY OF FORM
- Which of the following nerves controls movements of the neck? oculomotor vestibulocochlear spinal accessory hypoglossalarrow_forwardd) Identify a passive tissue that could be exposed to continued plastic stress (deformation). Explain the deformation process in relation to the type of stress applied. This is often seen in persons with inactive dynamic spinal stabilizing mechanisms who spend large amounts of time in a static posture.arrow_forwardWhich is a symptom of upper motor neuron lesion Absence of all tendon reflexes Flaccid paralysis Presence is fasciculations Abnormal plantar reflexarrow_forward
- A lower motor lesion involving CNVII will result in: Ipsilateral lower facial paralysis Contralateral lower facial paralysis Contralateral upper and lower facial paralysis Ipsilateral upper and lower facial paralysisarrow_forwardComplete transection of the spinal cord produces all of the following effects, except :-a- permanent loss of all sensations mediated by the cord below level of lesionb- permanent loss of voluntary movements by muscles innervated by the cord below level of lesionc- permanent loss of reflexes mediated by the cord below level of lesiond- temporary loss of micturition reflexesarrow_forwardexplain spinal damage in terms of the function of the autonomic nervous systemarrow_forward
- A lower motor lesion involving CNV will result in: Ipsilateral lower facial paralysis Contralateral lower facial paralysis A and B None of the abovearrow_forwardFollowing a fracture of cervical vertebra a patient exhibit spastic paralysis on the right upper and lower extremities loss of pain and temperature sensation in the left upper and lower extremities and normal vibration sensors in all extremities. The spinal cord injury most likely involves which of the following?arrow_forwardDeep pain shows the following characteristics, except :-a- dull achingb- throbbingc- evokes flexor reflexesd- diffusearrow_forward
- Loss of sensation to the thumb is indicative of injury to which nerve? median Oaxillary ulnar musculocutaneous.arrow_forwardThe spinal pain gate is :-a- Ligand controlledb- voltage controlledc- opened by enkephalind- closed by substance Parrow_forwardWhen removing cerebrospinal fluid during a spinal tap, the needle is inserted below L2. Explain why spinal taps are not done above this level.arrow_forward
- Surgical Tech For Surgical Tech Pos CareHealth & NutritionISBN:9781337648868Author:AssociationPublisher:CengageAnatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax College