Basics
The basic structural unit/cell of the nervous system
What is a neuron
The CNS contains what structures
What is the Brain and Spinal Cord
Define the PNS
What is everything outside the brain and spinal cord; the nerves that connect the brain and spinal cord to other parts of the body
Point of contact between the dendrite on one neuron and the axon of another
What is a synapse
Loss of function and sensation below the level of injury
What is paralysis
Carries impulses/messages to neuron cell body
What is a dendrite (can a neuron have more than one)
The interstate that connects the brain to the body
What is the spinal cord
Main divisions of the PNS
What are the somatic automatic/autonomic nervous systems
Nerves carrying impulses to the CNS
What are afferent, ascending, or sensory
Paralysis of all extremities
What is Quadriplegia
Carries messages/impulses away from the neuron cell body
What is an axon (can a neuron have more than one)
Divides the cerebrum into right and left hemispheres.
What is the longitudinal fissure
Division of the PNS containing 12 cranial nerves and 31 pairs of spinal nerves
What is the somatic nervous system
Nerves carrying messages/impulses away from the brain and spinal cord to muscles or glands
What are efferent, descending, or motor
Paralysis of legs
What is paraplegia
Two divisions of the nervous system.
What is the Central nervous system (CNS) and Peripheral nervous system (PNS)
The 3 layered covering of the brain and spinal cord
What is Meninges
2 subdivisions of the automatic/autonomic nervous system
What are the sympathetic and parasympathetic nervous systems
Neurons/Nerves will conduct impulses faster if this is present around the axon
What is a myelin sheath
An inflammation of the brain frequently caused by a virus contracted after a mosquito bite
What is encephalitis
Three functions of the Nervous System
What is SENSORY (gathering information from the environment); INTEGRATION (making a plan) and MOTOR (performing the plan)
Name the 3 layers of the meninges from the inside out
What is the pia mater, arachnoid membrane, and dura mater
Give 4 functions of the Sympathetic Nervous System
What are increase HR and strength, dilate bronchioles, dilate pupils, constrict blood vessels (increase BP), increase sweat, decrease saliva, decrease digestion and peristalsis and delay emptying of the bladder
Nerve pain caused by inflammation, pressure, toxins and other diseases
What is neuralgia
Inflammation or infection of the meninges caused by a virus, bacteria, or fungus
What is meningitis