GSA Systems of Spinal Cord & Trigeminal System Flashcards
How does the nervous system receive info about the EXTERNAL environment (GSA)?
Exterorecption
How does the nervous system receive info about the INTERNAL environment (GVA)?
Interoception
How does the nervous system receive info about the position and movement of the body?
Proprioception
General Visceral Afferents (GVA) are sensory from where?
Autonomic Nervous System
General Somatic Afferents: somatosensation (GSA) are sensory from where?
Skin and Skeletal muscle
What do GSA’s sense?
Touch, pain, temperature, position of body
The same sensory information is sent to multiple destinations for different purposes.
Divergence of afferent information
Different aspects of the same sensory experience are perceived in different parts of the brain at the same time.
Parallel Processing of afferent information
How do Divergence and Parallel processing relationship?
Divergence happens so parallel processing can occur
Where do somatosensory inputs go?
Contralateral Thalamus/Cortex
What is somatotopy?
Areas of the body that are more sensitive than others.
What reflex are the terminal fibers in the Caudal Colliculus of the Auditory Pathway for?
Startle Reflex
Does the startle reflex cause flexion of almost all skeletal muscle?
Yes
What pathway (UMN/LMN) should you associate the Startle Reflex with?
LMN
Sound can’t get from ear to vestibular window?
Conduction Deafness
Caused by: Disease, Damage, or obstruction (ear infection)
