Respiratory System
What's the main function of the respiratory system?
Get O2; Get rid of CO2
What does the heart do?
Pump blood
True or false: neurons are cells
True
Phineas Gage had a devastating injury to what part of his brain?
Frontal lobe
Spell the word that I pronounce out loud right now
capillary
What's the term for the smallest vessels containing air in the respiratory system?
Alveoli
What is blood mostly made out of?
Plasma
What happens in the dendrites of a neuron?
Signals are received from environment/other neurons
What's the function of the cerebellum?
Basic "lizard-brain" functions (balance, posture, fear/pleasure)
What's the term for the thing that stops you from inhaling food/water
Epiglottis
By what mechanism does CO2 exit the blood?
Diffusion
These vessels carry oxygenated blood away from the heart.
Arteries
What would happen if you had a disorder that caused motor neurons to reach action potential constantly?
Probably seizures or something like that
You're a neurosurgeon and you are treating a patient complaining about anterograde amnesia (can't form new memories). Where might you look for a tumor?
Temporal lobe
Why is it dangerous to inhale carbon monoxide
Binds to hemoglobin but doesn't release
Where is the voice box found?
Larynx
This protein in red blood cells binds to oxygen and transports it through the body.
Hemoglobin
What actually happens when an action potential reaches the end of a neuron?
Neurotransmitters are released into the synapse
True or false: if you're paralyzed from the neck down, but still alive, you have completely severed your spinal cord.
What's a lobotomy and why was it once considered a promising medical treatment
Scrambling the frontal lobe with a piece of metal inserted by the eye; made difficult mental patients less difficult to deal with
If you're inhaling, what's your diaphragm doing?
Contracting
False
Perfectly explain the role of the sodium-potassium pump in generating an action potential
Maintaining an electrochemical gradient by using active transport to force Na+ outside the cell and K+ inside, allowing for electrochemical impulses to be created inside the neuron when a stimulus is provided
What is the septum pellucidum?
A thin, triangular, vertical double membrane separating the anterior horns of the left and right lateral ventricles of the brain.
How many neurons are in the brain of a fruit fly? And how many neurons are in the brain of a human?
140,000 vs. 86,000,000,000