Intro to the nervous system
What is the central nervous system composed of?
What is the brain and spinal cord
What are the ions involved with transmission of a nerve impulse
What is Sodium and Potassium?
What is the function of neurons?
What is conducting impulses?
What is the strongest outermost layer of the brain, made out of dense connective tissue which provides protection?
What is dura matter?
What is the spinal cord surrounded by?
What is bone, meninges, and cerebrospinal fluid?
What are the three general functions of the Nervous System?
What is sensory, integration, and motor ability?
OR Sense process and respond to stimuli
What are chemicals that allow neurons to communicate?
What are the gaps in the myelin sheath?
What are Nodes of Ranvier?
What does Cerebrospinal Fluid provide to the brain?
What are nutrients?
These spinal nerves innervate the lower extremities. The sciatic nerve is located in this group of nerves.
What is the lumbosacral plexus?
What is a motto for the sympathetic nervous system?
List 3 things that speed up when it is activated.
What is "fight or flight?"
What is the "All or None" response?
What is: if a neuron responds at all, it responds completely; There is no partial response
What phagocytizes bacterial cells and dead neurons?
What is Microglia?
What lobe of the cerebrum is important for skeletal muscle control and executive functioning and reasoning?
What is the frontal lobe?
Unmyelinated structures of the nervous system
What is gray matter, like interneurons and cell bodies?
What is the physical response of the parasympathetic nervous system?
List three things that happen when it is activated.
What is rest and digest?
These nerves are motor nerves taking information from the CNS and bring it to other areas of the body
What is an efferent nerve?
What neuron is numerous and receives stimuli?
What are dendrites?
What area of the brain helps with visual processing like reading?
What is the occipital lobe of the cerebrum?
What is an automatic, involuntary response to stimuli The parts of this process are the receptor, sensory neuron, motor neuron and effector?
What is a reflex arc?
What is the peripheral nervous system composed of?
What are nerves that extend from the brain and spinal cord? Spinal and cranial nerves
What type of potential occurs when Na+ channels open, Na+ ions rush into the cell?
What is action potential?
Essential for producing myelin but only in the Peripheral Nervous System?
Produce Myelin in both CNS and PNS-line the ventricles of the brain
What are Schwann Cells?
What are ependymal cells?
the structure that divides the temporal and parietal lobes of the cerebrum
What is the central sulcus?
A group of spinal nerves? This group innervates the upper extremities
What is a plexus? What is the brachial plexus?