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Effects damaged brain may have on impulses to the peripheries? - Coggle…
Effects damaged brain may have on impulses to the peripheries?
Previous medical conditions
Type 2 Diabetes
hypertension
ETOH
LS Ischemic stroke
Hypertension
headache
vision changes
high BP
Smoking
LS Ischemic stroke: Altered impulse sensations - caused by death of neurons and destroyed connections to/from the brain
Lack of blood and O2 to the brain
decreased amount of afferent neurons
causes headaches/migraine (photophobia)
Possibly had a 2nd stroke leading to new symptoms
T2D could have resulted in peripheral neuropathy
Possible damage to Frontal Lobe (Primary motor cortex - adjacent to somatosensory cortex; controls
voluntary motor function) and Temporal/Occipital Lobe (Primary area responsible for vision & coordination eye movements - Primary visual cortex) due to LS stroke
When it comes to TBIs, photophobia is caused by injury to the thalamus, a structure in the brain that filters incoming visual information and delivers neural signals to various sections of the brain
Schwann cells: wrap around an axon to act as insulation by forming myelin sheath. They create Nodes of Ranvier, which allows nerve impulses to jump from one node to another. This process is known as saltatory conduction and is responsible for allowing a faster travel of electrical impulses that may be observed on unmyelinated axon
Effects may be temporary or permanent depending on severity of damage