Ch13. Brain Disorders

Destroys motor neurons (leads to paralysis)

ALS

Destroys myelin in CNS the coordination & vision problems

MS

Not enough dopamine ➡stiff muscles, tremors

Parkinson’s

Destroys hippocampus ➡memory loss

Alzheimers

Movement disorder from brain damage at birth

Cerebral Palsy

Virus enters CNS via nerves ➡ fatal if untreated

Rabies

__ = efferent = from brain

Motor

Pain felt in area other than the source (like left arm during a heart attack)

Referred Pain

___ = afferent = to brain

Sensory

Which sensory pathway carries Pain, temperature,

Spinothalamic

Which sensory pathway carries

• fine touch, proprioception

Posterior column

Which sensory pathway balance info to cerebellum

Spinocerebellar

Which motor neuron is In the brain & sends command 🧠➡

Upper motor neuron:

Which motor neuron is in the spinal cord & activates muscle 🧠💪🏾

Lower motor neuron

voluntary movement of skeletal muscles is called

• Corticospinal (pyramidal)

your brain’s ability to know where your body parts are — without you looking.

Proprioception

A disease that destroys upper and lower motor neurons, causing muscle weakness and atrophy.

ALS

: A condition caused by low dopamine levels, leading to tremors and stiffness.

Parkinson’s disease

A disorder involving the degeneration of the hippocampus, causing memory loss.

Alzheimer’s disease

A condition where the immune system attacks the myelin sheath in the CNS

multiple sclerosis (MS)

Pain felt in an area different from the actual source, like left arm pain during a heart attack.

referred pain