Anatomy
How many lobes are in the brain?
Four (temporal, parietal, occipital, frontal)
What is a characteristic symptom of Alzheimer's disease?
memory loss
What is the cell that carries out action potentials?
Neuron
There are this many cranial nerves
12
Which lobe is responsible for vision?
Occipital
What is the cell type affected in Multiple Sclerosis?
Schwann cells
A cell reaching threshold (-55 mV)
Who was impaled with a rod in the frontal lobe while working on the railroad tracks?
Phineas Gage
What are the two parts that make up the central nervous system?
Brain and spinal cord
What is a hemorrhagic stroke?
blood leaks into the brain
Dopamine, serotonin, and oxytocin are examples of what?
neurotransmitters
Name the two parts of the homunculus that are most sensitive
Lips and finger tips
Sensory homunculus
A patient has a diminished knee jerk response. Is this a central or peripheral nervous system problem?
Peripheral Nervous System
What are the two main ions that are involved in propagating an action potential?
Na+ (sodium) and K+ (potassium)
Screen time before bed is detrimental to your sleep cycle because it affects the _____ lobe.
occipital
A patient got in an accident and a rod drove right through his head. He's having a hard time making decisions and is very angry (this is unlike his usual personality)! What lobe of the brain has he likely injured?
Frontal lobe
You're a first year Emergency Medicine resident in a busy NYC hospital! It's your first day and a patient comes to you with drooping of the left side of the face. You see a clot in the brain on MRI. What kind of stroke do you suspect?
Ischemic stroke
Even if you suffer tremendous brain injury, you're still able to continue breathing. This is because the ______ center of the ___ is unaffected.
respiratory; pons