The muscle that regulates how much light enters the eye.
Iris
The simplest type of nervous system response is called a
Reflex
Which type of neurotransmitter effects positive reinforcement & addiction
Dopamine
What is number 3?
Iris
The area of the eye that contains rods and cones.
Retina
The ____________ connects the two hemispheres of the brain
Corpus callosum
Chemoreceptors on the olfactory bulb allow us to_____________.
Smell
What is the top box of the brain?
Left Parietal Lobe
A clouding of the lens is called
Cataract
The worm-like ridges on the surface of the brain are called
Gyri
_________ helps maintain the eyeballs shape.
Cornea
What bone in the ear looks like a saddle stirrup?
Stapes
Which of the following receptors can only be found in the eye?
Photorectors
The part of the brain that plays a major role in memory is called
Hippocampus
A blind spot exist because
Where the optic nerve connects to the retina and there are no photoreceptors
What is number 6?
Optic Nerve
_________ are sensitive to light and help us see in low light settings
Rods
The _________________ is responsible for regulating heart rate, body temperature and blood pressure
medulla oblongata
The term central nervous system refers to the
Brain and spinal cord
What is the very bottom box?
Ear Drum