The two types of neural cells that make up neural tissue are grouped into these two categories.
What are neurons and the neuroglia.
100
The nervous system is divided into these two branches.
What is the central nervous system (CNS) and what is the peripheral nervous system (PNS).
100
The gyrus and sulcus form into ridges and grooves on the surface of the brain. This is their ultimate purpose...
What is increasing the surface area OR
What is fitting more neural matter into a smaller space
100
An electrical signal that propagates along the axon of a neural cell, causing both depolarization and repolarization, is called a(n)...
What is an action potential.
100
Your sense of taste is also dependent on this other sense. Both happen to be chemoreceptors.
What is your sense of smell.
200
This is the name for a lipid layer that surrounds the axons of neural cells. Its presence causes white matter in the CNS and makes action potentials travel faster down the axon.
What is myelination.
200
Name the two main parts of the brain stem that help regulate your respiratory and cardiac center. For DOUBLE points, circle the one that helps to regulate your cardiac center.
What are the PONS and the MEDULLA OBLANGATA.
The MEDULLA OBLANGATA will be circled.
200
This is the name for the innermost layer of the eye. It contains the rod and cone photoreceptors which are sensitive to light.
What is the retina.
200
During an action potential, this is the name for the process where potassium exits the inside of a neural cell in an effort to reestablish a more negative charge.
What is repolarization.
200
The hair cells of the cochlea in the inner ear belong to this group of sensory cells.
What are mechanoreceptors.
300
This is the name of the neuron that analyzes and processes information as well as relays messages.
What is an interneuron.
300
This is the name for the deep groove that divides the left and the right hemispheres of our brains.
What is the longitudinal fissure.
300
This is a transparent protein disc located in the anterior of the eye. It's primary function is to focus on visual images by changing shape. This was the hard, marble like structure from the cow eye dissection.
What is the lens.
300
This is the formal name for the chemicals found in the vesicles of the presynaptic membrane of a synapse. An example would be Acetylcholine and its release will form the chemical component of neural communication.
What are neurotransmitters.
300
This is the part of the ear that one would find the anvil or the oval window.
What is the middle ear.
400
A monosynaptic reflex involves these two neural cells...
FOR DOUBLE POINTS, HOW MANY SYNAPSES ARE INVOLVED?
What are sensory and motor neurons?
400
These two subdivisions of the PNS are often referred to as "rest and digest" and "fight or flight". To receive points, circle the division that would cause an INCREASE in your heart rate.
What are the parasympathetic and sympathetic divisions.
400
Name one of the two types of liquids identified in the cow eye dissection lab. Both help maintain pressure & shape in the eye; one is technically a gel.
What are aqueous and vitreous humor.
400
This is the name for the period between depolarization and repolarization. During this time, additional action potentials cannot stimulate this part of the axon.
What is the refractory period.
400
This type of general sense is specific for detection of pain.
What are nociceptors.
500
Describe the location of gray and white matter in the brain as it compares to gray and white matter in the spinal cord.
They are the reverse of one another.
Gray matter is on the inside of the spinal cord and on the outside of the brain. White matter is on the outside of the spinal cord an on the inside of the brain.
500
Whereas the autonomic subdivision of the PNS ultimately sends signals from the CNS to parts of the body such as smooth muscle and glands, this subdivision of the PNS sends signals from the CNS to skeletal muscle.
What is the somatic division.
500
During the sheep brain lab, Mrs. Koch pointed out a hard, outer shell of the brain that was semi clear and also known as "hard mother". This structure is the outermost layer of the meninges.
What is the dura mater.
500
This is the numerical value (mV) of the threshold for the transmembrane potential. If this value NOT reached as a result of an electrical impulse, the neuron will not generate an action potential.
What is -60mV
500
These are the four main types of the general senses...
What are nociceptors, thermoreceptors, mechanoreceptors and chemoreceptors.