Nervous system test questions Ch. 24
Decrease
With normal aging the number of nerve cells in the brain
Outside
A nerve is a bundle unit of nerve fibers found ___ in the central nervous systems?
Stimulation
A receptor is a point at which ____ of the nerve occurs?
single
A nerve fiber is a long __ elongated process usually an axon in the peripheral process?
Third
A stroke also known as a CVA is the _____ leading cause of death in the United States?
KNob
A synapse of a nerve axon where the impulse is transmitted is ____ shaped?
80
An individual who does not have a neurological disease intellectual performance tends to be maintained until at least age?
White
Both the brain and spinal cord is divided into gray and ____ matter?
Half
Cerebral is divided into ____ equally?
Schwann
Damage to a nerve cell without the myelin sheaths us permanent because regeneration of nerve ells can only happen when ____ cells are present
Brain
Encephalitis is he inflammation of the?
10
From age 20 or 30 to age 90 brain weight declines by ___ % and the area of the cerebral ventricles relative to the entire brain may increase 3 to 4 inches ?
Efferent
Motor neurons are called ___ meaning they carry messages away from the central nervous system to the muscle and organs?
Neurilemma
Nerve fibers that are housed working in the same tract have all the following things in common except?
Waste down
Paraplegia refers to paralysis that begins at the
Life
Patients with Alzheimer's may be prescribed medication for?
Chemical
Receptors are typically specialized to react to specific stimulation by initiating a _____ change?
One
Sciatica usually occurs on ___ of the body?
Grwoth rate
Testing a child's nervous system development includes all the following except ?
Autonomic
The ____ nervous system is responsible for controlling involuntary movements such as heart rate and sweating?
Brain
The _____ is the largest mass of nervous tissue in the body weighing about 3 pounds in a male and slightly less in a female?
Transmits
The axon is the nerve projection that ____ impulses?
Pons
The brain stem consists of the midbrain the medulla oblongata and the __?
Spinal Cord
The central nervous system is composed solely of the brain and ?
75
The cerebral cortex contains _____ % of all neurons in the nervous system ?
Gray and White
The cerebrum which is composed of ___ matter is the largest part of the mature brain?
6
The development of the child's nervous system begins when the embryo is ___ weeks?
Hair Growth
The hypothalamus is important for regulating all the following except?
Cerebral
The larger portion of the mature brain is the?
Sensory Organs
The nerves of the peripheral nervous system connect the central nervous system to the ?
First and Secon
The spinal cord extends from the base of the medulla oblongata to the junction between the _____ lumbar vertebrae?
8
There are ____ pairs of cervical spinal nerves?
5
There are ____ pairs of lumbar spinal nerves
Transient Ischemic Attack
Treatment that may reduce the risk of _____ include taking anticoagulants smoking sensation and lowering blood pressure?
Retina
Very complex sensory receptors in the ______ of the eye collect all the input necessary for sight?
Corpus callosum
What is the name of the structure that connects to hemispheres of the brain?
Difficulty with movement
When a disease such as MS destroys the myelin sheaths that protect nerves the result is ?
Sympathetc nervous system
When a person hears a fire alarm and sees smoke the _____ triggers a response that gives a rush of adrenaline and causes heart rate respiration and blood pressure to increase
Oxygen
When blood supply to the brain is impaired ____ decreases and the brain cells die?
Posttraumatic
Which is a type of headache that is associated with a TBI?
Pia
Which of the following is not one of the 3 types of neurons?
Men who drink alcohol or smoke excessively
Who is most likely to suffer from cluster heads?
Rest and Digest
Your sympathetic nervous system stimulates response is balanced by the parasympathetic nervous system _______ response
17-18
the average length of the spinal cord in an adult is _____ inches
