Exam 1 Corrections Flashcards
In the CNS, clusters of grey matter containing cell bodies are
nuclei
In the PNS, clusters of grey matter containing cell bodies are
ganglia
Bundles of axons and their myelin sheath in the CNS are
tracts
Bundles of axons and their myelin sheaths in the PNS are
nerves
The following are all major components of the brainstem except
cerebellum
The right and left cerebral hemispheres are separated from each other by
longitudunal fissure
The medulla oblongata is _______ to the cerebrum
caudal
The gray matter of the cerebrum forms a surface layer called the _____ and deeper masses called _____ surrounded by white matter.
cortex, nuclei
From superficial to deep, the meninges occur in which order
dura, arachnoid, pita
A patient is experiencing a high fever, stiff neck, drowsiness, and intense headaches. A spinal tap showed bacteria and white blood cells in the CSF. This individual most likely has what condition?
meningitis
Where are the cardiac, vasomotor, respiratory centers found?
medulla
Degeneration of the neurons in which of the following structures leads to the muscle tremors associated w/ Parkinsons disease?
substantia nigra
Where is the pons located?
superior colliculi
Loss of equilibrium and motor coordination would most likely be related to a lesion in which structure?
cerebellum
Nearly all the somatosensory input to the cerebrum passes by way of synapses in the
thalamus
Sex drive, body temp. and food/water intake are regulated by which part of the brain?
hypothalamus
A lesion in which structure would cause a person to have an erratic waking/sleeping cycle?
suprachiasmatic nucleus
Planning, motivation, and social judgment are functions of the brain associated with which part of the cerebrum?
frontal lobe
The great majority of which tracts pass through the corpus callosum?
commissural
Where are the hippocampus and amygdala found?
limbic system
A predominance of which waves in an EEG might indicate that a person is thinking about this question?
beta
Short term memory is associated with the _______ whereas long term memory is associated with the ____.
hippocampus, cerebral cortex
Destruction of the amygdala would mostly affect which of the following?
expression of emotional feelings
the pyramidal cells of the precentral gyrus are called
upper motor neurons
After a stroke, a patient complains about lack of sensitivity in her right hand. the stroke most likely affected which part of the brain?
postcentral gyrus in the left parietal lobe
What is the largest of the cranial nerves and the most important sensory nerve of the face?
trigeminal
Which cranial nerve innervates most of the viscera in the thoracic and abdominopelvic cavities?
vagus
Propranolol, a beta blocker, is typically used to
decrease heart rate
the binding of ______ to a nicotinic receptor of a muscle fiber will _____ it.
acetylcholine, excite
Atropine is sometimes used to dilate the pupil for an eye exam. Which receptor would atropine block?
muscarinic receptor
