Neurons and Nerves
What is the sensory neuron designed to sense pain called?
Nociceptor
What part of the brain is in charge of beating your heart?
Medulla Oblongata
What is the all-or none response?
Once the threshold level is reached, the neuron will fire completely.
What is the structure of the eye that causes the blind spot?
The Optic Nerve
What is static equilibrium?
Head position
What is the function of a Schwann cell?
What is the function of the hypothalamus?
Largely involved in maintaining homeostasis OR Coordinates communication between nervous system and endocrine system.
Describe the ion movement during repolarization. (Ion name and Direction)
Potassium(K+) moves out of the neuron.
What lens is used to correct Hyperopia.
Concave
What are the names of the three ossicles?
Mallus, Incus and Stapes
What is the scientific name for the "Fight or Flight Response"?
Sympathetic Nervous System
What does the peripheral neurons have that the central neurons lack?
A neurolemma.
What is saltatory conduction and why is it important?
Describe, using terms from the eye, what the pupillary response is?
The Iris reacts to light and changes in size.
What structure is involved in dynamic equilibrium
The Semi-Circular Canals.
Why do we only have three neurons involved in a reflex arc?
To ensure speedy reactions.
Why is a stroke difficult to detect?
The Brain does not have any sensory neurons aka the Brain cannot "feel".
How does the brain interpret the severity of a sensory input?
Through the number and specific threshold levels of the activated neurons.
What is night vision in greyscale?
Cones require high intensity light to function, and rods do not detect color.
What is the function of the Eustachian Tube?
Maintain pressure balance between the middle ear and the external environment.
What are dendrites?
Cytoplasmic projections that carry the nerve impulse to the cell body
Aside from auditory processing, what else is the Temporal lobe responsible for?
Memory storage/recall.
What is the neurotransmitter that causes the "Fainting Goat" phenomenon?
Acetylcholine
What causes glaucoma?
A build up of humor in the eye due to blocked drainage ducts.
What is the function of the round window.
To allow the fluid in the cochlea to move or vibrate.