Question 1
3 / 3 pts
Which disorder is associated with buildup of amyloid proteins leading to loss
of memory and intellectual functions?
epilepsy
Parkinson’s disease
Alzheimer’s disease
meningitis
multiple sclerosis
Question 2
3 / 3 pts
The neurons that are located in the brain and spinal cord are ____.
motor neurons
sensory neurons
integrator neurons
interneurons
glial cells
Question 3
3 / 3 pts
The part of a neuron that receives information from other neurons is the ____.
axon terminal
dendrite
cell body
axon hillock
synapse
Question 4
3 / 3 pts
The pons and medulla oblongata are part of the ____.
thalamus
hypothalamus
cerebrum
brain stem
cerebellum
Question 5
3 / 3 pts
Over 90% of all cells in the nervous system are ____.
motor neurons
sensory neurons
integrator neurons
interneurons
glial cells
Question 6
3 / 3 pts
Which brain structure plays a central role in homeostasis?
thalamus
hypothalamus
cerebrum
brain stem
cerebellum
Question 7
3 / 3 pts
Which drug is considered an hallucinogen?
marijuana
nicotine
cocaine
morphine
alcohol
Question 8
3 / 3 pts
What is found in the ventral horn of the spinal cord?
dendrites
cell bodies of motor neurons
axons
white matter tracts
autonomic neurons
Question 9
3 / 3 pts
Glial cells perform all of the following functions EXCEPT ____.
nourish neurons
control the concentrations of electrolytes
protect and support neurons
produce action potentials
insulate axons
Question 10
3 / 3 pts
West Nile virus or herpes virus infection can lead to the dangerous condition
of ____.
epilepsy
paralysis
encephalitis
meningitis
multiple sclerosis
Question 11
3 / 3 pts
A dendrite of a sensory neuron is classified as a(n) ____.
free nerve ending
encapsulated receptor
sensory receptor
sensory stimulus
tertiary sensory neuron
I Question 12
0 / 3 pts
Information from the right visual field is ____.
carried into the thalamus by the optic chiasm
detected by both eyes
sent directly to the visual cortex
processed by the right visual cortex
carried by the left optic nerve
Question 13
3 / 3 pts
The hair cells for hearing are housed in the ____.
cochlea
semicircular canals
tympanic membrane
round window
auditory nerve
Question 14
3 / 3 pts
Which condition is also known as nearsightedness?
red-green color blindness
astigmatism
hyperopia
myopia
cataracts
Question 15
3 / 3 pts
Pain from an internal organ is known as ____.
referenced pain
phantom pain
somatic pain
dermatomes
visceral pain
Question 16
3 / 3 pts
The structure in the retina containing cone cells is the ____.
cornea
optic disc
iris
ciliary body
fovea
I Question 17
0 / 3 pts
In which condition must the eye often be removed to prevent the spread of
the disease?
conjunctivitis
malignant melanoma
retinoblastoma
macular degeneration
herpes infection
Question 18
3 / 3 pts
Which chemicals are natural pain suppressors?
substance P
bradykinins
prostaglandins
histamine
endorphins
Question 19
3 / 3 pts
Which structure adjusts to control the intensity of incoming light?
cornea
sclera
iris
ciliary body
fovea
Question 20
3 / 3 pts
The all-or-nothing rule of action potential production is a function of ____.
threshold potential
graded potential
conduction velocity
propagation direction
frequency coding
I Question 21
0 / 3 pts
Many of the spinal cord nerve tracts ____.
are unmyelinated
contain dendrites and cell bodies
are found in the central portion of the cord
are classified as white matter
extend from the brain to the thoracic spinal cord region
Question 22
3 / 3 pts
Which receptor is involved in detecting changes in body position?
Pacinian corpuscle
free nerve endings
muscle spindle
Merkel’s discs
Meissner’s corpuscle
I Question 23
0 / 3 pts
The receptors that detect head rotation ____.
are located in the cochlea
are located in the utricle
are found at the base of each semicircular canal
respond best to straight line acceleration
are contained in an air-filled space
Question 24
Not yet graded / 8 pts
Name six categories of sensory receptors our text mentions and the type of
stimulus each type detects.
Your Answer:
Mechanoreceptors - detect changes in pressure/vibrations.
Thermoreceptors - detects heat or cold.
Nociceptors - detect pain/tissue damage
Chemoreceptors - detect molecules.
Osmoreceptors - detect changes in surrounding fluid.
Photoreceptors - detects energy of light.
Question 25
Not yet graded / 8 pts
Describe the differences outlined in our text between the central and
peripheral nervous system
Your Answer:
The central nervous system includes the brain and spinal cord. It is the
control center.
The peripheral nervous system is everything else. Nerve fibers that carry
information to and from the CNS.
