Quiz Ex 19, 21
All spinal nerves are mixed nerves, in that they contain both sensory and motor fibers.
True
Each spinal nerve is only about 1-2 cm long, because each nerve divides into a dorsal and ventral root almost immediately after emerging from the spinal cord.
True
The twelve pairs of cranial nerves are part of the peripheral nervous system and not part of the brain proper.
True
craniosacral
Parasympathetic division
Somatosensory association area
awareness of pain, temperature, and light touch
optic chiasm
where optic nerves partially cross over
Like the brain, the external tissues of the spinal cord are gray matter, and the internal tissues are white matter.
False
resting and digesting
Parasympathetic division
terminal ganglia
Parasympathetic division
fight or flight
Sympathetic division
paravertebral ganglia
Sympathetic division
thoracolumbar
Sympathetic division
The only cranial nerve that enters the thoracic and abdominal cavities in addition to innervating the head and neck is the vagus nerve.
True
Cerebral cortex
cell bodies of cerebral neurons
cauda equina
collection of spinal nerves in the inferior end of the vertebral canal
corpus collosum
connects the cerebral hemisphere
The meningeal layers, in order, beginning closest to the skull are a. arachnoid mater, periosteal dural layer, meningeal dural layer, pia mater b. meningeal dural layer, periosteal dural layer, arachnoid mater, pia mater c. pia mater, arachnoid mater, meningeal dural layer, periosteal dural layer d. periosteal dural layer, meningeal dural layer, arachnoid mater, pia mater e. none of the above is in the correct order
d. periosteal dural layer, meningeal dural layer, arachnoid mater, pia mater e. none of the above is in the correct order
Which of the following is incorrectly paired? a. autonomic division/involuntary system b. PNS/communication lines c. somatic division/voluntary system d.CNS/interpret information e. None of the above are incorrectly paired
e. None of the above are incorrectly paired
conus medullaris
end of the spinal cord
cerebral white matter
fiber tracks carrying information to and from cortex
filum terminale
fibrous extension of the pia mater
choroid plexus
form Cerebrospinal fluid
Wernicke's area
junction of parietal and temporal lobes
Medulla oblongata
lowest brain stem region
Broca's area
motor speech area
visual areas
occipital lobe
primary somatosensory cortex
post central gyrus of parietal lobe
primary motor area
precenral gyrus of frontal lobe
denticulate ligaments
secure cord to vertebral column