Chapter 91 Quick Notes

Vestibular System

• Vestibular nuclei are situated in the medulla and pons.

TRP (Transient Receptor Potential) Channels

• Classified into subfamilies (e.g., vanilloid, melastatin).
• Naming format: TRP + subfamily letter + number
  • Number = order within subfamily.
  • Examples:
  • TRPV3: Vanilloid subfamily, member $3$.
  • TRPM8: Melastatin subfamily, member $8$.
  • TRPV1: Vanilloid subfamily, member $1$.
  • TRPM5: Melastatin subfamily, member $5$.

Cranial Nerve VIII (Vestibulocochlear)

• Contains both sensory and motor axons.
• Classified as sensory only because its motor axons do not innervate muscle or gland tissue.