Flashcards in Test 2 practice questions (old) Deck (69):
A bundle of fibers that form a specific tract may also be called a ___
In general, ganglia are found in the ___, while groups of neurons in the __ are called nuclei.
Which region of neural plate forms PNS?
Filum terminale is remnant of what structure?
Somatosensory cortex is located in the ___ gyrus
Motor neurons within the ventral horns are examples of __ type neurons
Connection between most neurons in the mammalian NS is?
Which axons leave spinal cord in the ventral root?
How many neurons participate in a stretch reflex such as the knee jerk reflex?
Alpha motor neurons innervate....
Extrafusal motor fibers
Matching: Match neuron type with location. Options are Unipolar (pseudounipolar), Bipolar, Multipolar
Outer pyramidal layer of cortex
Inner granule layer of cortex
What structure(s) end at vertebral level S2?
Where does conus medularis end?
Most common type of synapse
What is a tract?
Bundle of fibers in the CNS
What CN exits the brainstem between the olive and pyramid?
T/F Neurotransmitters reach terminal ends of axon by anterograde transport
Which does not make up a part of coccygeal ligament?
Dentate ligament is made up of...
The following structure belongs to metencephalon...
Inf. cerebellar peduncle attaches the __ to the cerebellum.
The cauda equina is...
Lumbar and sacral roots extending inferior to the end of the cord.
What connects broca's to wernicke's area?
Arcuate association fibers
What Artery runs in lat. fissure?
What Artery supplies Lateral brain?
What artery supplies visual cortex?
What lobe contains visual cortex?
What deep vein goes to the straight sinus?
Great cerebral vein of galen
Territory from which a sensory unit can be excited is known as...
Receptors that respond to stimuli from the internal environment are known as...
Aging on motor units results in??
Loss of motor neurons from the cord and stem
FIbers cross where in the medulla?
Internal arcuate fibers
The reticular formation is located where?
In the tegmentum of the midbrain, pons, and medulla
What do primary afferent sensory receptors measure?
Rate of stretch
What do secondary afferent sensory receptors measure?
How long stretch lasts
What are specialized epithelial cells that act as touch receptors?
What artery supplies visual cortex?
Where do fibers originate that form the gracile fasciculus?
Upper half of spinal cord
Nuclear bag fibers receive ___ and ___ fibers
Ia primary afferent
Group II afferent
There are __ pairs of spinal nerves in the spinal cord.
Corticospinal tract descends in the ___ limb of the internal capsule and is originated in the __ cortex
In the spinal cord, the marginal zone mainly consists of fibers and ___.
Which tract releases serotonin at the spinal cord level?
Unconscious proprioceptive fibers of fasciculus cuneus terminate in the ___ nucleus
The ___ tract is concerned with intersegmental spinal reflexes.
The origin or rubrospinal tract is located in the red nucleus of the ___
The ___ tract originates in the Sup. Colliculus
What structure gives rise to lateral corticospinal tract?
The spinal lemniscus (Spinothalamic Tract) is concerned with ___ functional components
Which tract decussates in the midbrain?
Involuntary motor control tracts terminate mainly in which lamina?
7, 8, some of 9
Which nuclei is part of auditory pathway?
ANterior horn consists of Rexed lamina or laminae ___
Which vessel supplies the majority of the lateral side of cerebrum?
which cerebellar nucleus is biggest in humans?
Where are postganglionic sympathetic bodies located?
Near target organ
Which system cant be mapped in the brain?
Which CN has four nuclei in the brain?
WHich artery is biggest branch off of internal carotid artery?
AT which level does the pathway for pain and temperature sensation for the lower limbs cross the midline?
lumbosacral spinal cord
The circuit for explained emotion is the __ and is involved with the limbic system
SPinal cord segments that form the cervical enlargement
___ nucleus is necessary for pupillary light reflex
What NT causes inhibition in the motor circuit of the cortex?
Which NT causes excitation in motor nucleus of cortex?
Purkinje cell is primarily __ in function
Mossy cell fibers are primarily __ in function
Spinocerebellum controls ___ type movement