Nervous System Organization
This division of the nervous system includes the brain and spinal cord
What is the CNS?
This structure is responsible for connecting the left and right hemisphere.
What is the corpus callosum?
These finger- or branch-like projections receive input from other neurons.
What are dendrites?
A reduced amount of this NT is thought to be associated in Alzheimer's disease.
What is acetylcholine?
This sensory system bypasses the thalamus.
What is the olfactory system?
Starting at your forehead and moving clockwise, what is the order of the four lobes of the brain?
What is frontal, parietal, occipital and temporal?
Damage to this area will result in death as it is responsible for mediating involuntary movements (i.e., swallowing, breathing, heart rate, etc.)
What is the medulla?
The insulating component that speeds up conduction.
What is myelin?
This NT is implicated in Parkinson's disease.
What is dopamine?
The retina houses these two types of photoreceptors.
What are rods and cones?
The brain is divided into these three major regions during early development.
What are the forebrain, midbrain and hindbrain?
This subcortical structure is crucial for initiating movement and is thought to be impaired in Parkinson's disease?
What are the basal ganglia?
Information flow travels through a neuron in this order.
What is dendrites to cell body/axon hillock, to axon, to terminal button, across the synapse?
The final stage of neurotransmission.
What is deactivation?
What is vision?
This branch of the ANS conserves energy and promotes rest-and-digest functions.
What is the parasympathetic nervous system?
This hindbrain structure works along with the basal ganglia to support movement.
What is the cerebellum?
This ion rushes into the cell/neuron during depolarization?
What is sodium (Na+)?
This class of drugs will mimic the effect of the NT
What is an agonist?
This cortical area helps plan complex movements before they are executed.
What is the premotor cortex?
This system is responsible for our flight or fight response.
What is the sympathetic nervous system?
The basal ganglia is composed of three substructures.
What are the caudate nucleus, putamen and globus pallidus?
The all-or-none principle applies to this neural signal.
What is the action potential?
This is considered the main excitatory NT
What is glutamate?
This descending tract controls fine voluntary movements of the limbs.
What is the corticospinal tract?