Nervous System Basics
The Synapse
Brain Anatomy
Eye Anatomy
Vision Disorders
100
It’s not my spidey-sense that’s tingling, but rather this part of the neuron that receives stimuli.
What are dendrites?
100
Coming from a definition to split or divide, this is the area that vesicles must cross to continue sending a message between neurons.
What is the synaptic cleft?
100
Lobe number 1
What is the frontal lobe?
100
Structure A
What is the cornea?
100
The medical term for nearsightedness.
What is myopia?
200
Originating from the Latin word terminus ad quem, this part of the neuron is located towards the end of the cell.
What is axon terminal?
200
This chemical messenger begins inside a vesicle and gets released into the synaptic cleft.
What is a neurotransmitter?
200
Lobe number 5
What is the occipital lobe?
200
Structure D
What is the optic nerve?
200
This vision disorder is characterized by increased internal eye pressure which damages the optic nerve.
What is glaucoma?
300
These two body structures make up the central nervous system.
What are the brain and spinal cord?
300
Also responsible for the formation and development of bone, this element signals vesicles to fuse into the presynaptic membrane and release neurotransmitters.
What is Ca2+?
What is Ca?
300
This "little brain" helps control movement, balance, and posture.
What is the cerebellum?
300
With the help of ciliary muscles, this structure changes shape to accommodate objects at various distances.
What is the lens?
300
This dense clouding of the lens causes the vision disorder shown below.
What are cataracts?
400
The Peripheral nervous system can be further broken down into these two divisions.
What are the autonomic and somatic nervous systems?
400
The buildup of this molecule in the postsynaptic neuron generates a new electrical impulse.
What is Na+?
What is sodium?
400
Lobe number 2
What is the temporal lobe?
400
Pigmented with melanin, this thin membrane helps control the amount of light that enters the pupil.
What is the iris?
400
The medical term for farsightedness.
What is hyperopia?
500
This nervous system division is responsible for involuntary and unconscious impulses such as the heartbeat.
What is the autonomic nervous system?
500
The structures in red are reducing in number inside the brains of drug addicts.
What are dopamine receptors?
500
This multi-layered tissue surrounds the cerebrum to provide an extra layer of protection, cushioning, and nourishment.
What is the meninges?
500
The innermost layer of the eye that's embedded with photoreceptors.
What is the retina?
500
Distorted or blurred vision at all distances.
What is astigmatism?