Nervous System Basics
The division of the PNS that carries information toward the CNS.
What is the sensory (afferant) division?
The autonomic division commonly associated with "fight or flight".
What is the sympathetic division?
The structure of the eye that changes pupil size
What is the iris?
The organ that produces bile.
What is the liver?
The simple sugar used as a major fuel for mahking ATP.
What is glucose?
The neuron process that conducts impulses away fro mthe cell body.
What is the axon?
The autonomic division that supports digestion and energy conservation.
What is the parasympathetic division?
The retinal photoreceptors responsible for color vision.
What are cones?
The wave-like muscular contractions that move food along the GI tract.
What is peristalsis?
The hormone that helps lower blood glucose after a meal.
What is insulin?
The glial cells whose cilia help circulate cerebrospinal fluid.
What are ependymal cells?
The brainstem region that controls heart rate and blood pressure.
What is the medulla oblongata?
The part of the retina without photoreceptors.
What is the optic disc (blind spot)?
The stomach cells that release hydrochloric acid.
What are the parietal cells?
The number of kilocalories supplied by one gram of fat.
What is 9 kilocalories?
The gap between two communicating neurons, across which neurotransmitters diffuse
What is the synaptic cleft?
Damage to this cerebral lobe can impair voluntary skeletal muscle control.
What is the frontal lobe?
These inner-ear structures detect rotational movements of the head.
What are the semicicular canals (ampullae)?
The mechanical process by which bile breaks large fat globules into smaller droplets.
What is emulsification?
The hormone that controls the basal metabolic rate.
What is thyroxine?
The correct sequence of neuron types in a typical three-neuron withdrawl reflex.
What are sensory neuron, interneuron, and motor neuron?
The brain region that relays much incoming sensory information toward the cerebral cortex.
What is the thalamus?
This type of hearing loss can result from damage to cochlear hair cells or the cochlear nerve.
What is sensorineural hearing loss?
The four layers of the alimentary canal wall, from inner to outer.
What are the mucosa, submucosa, muscularis externa, and serosa?
The organ that converts toxic ammonia from amino acid metabolism into urea.
What is the liver?