Pregunta 1
Pregunta
To allow for CSF reabsorption, the arachnoid granulations protrude into which space?s
Respuesta
-
superior sagittal sinus
-
4th ventricle
-
subarachnoid space
-
foramen of magendie
Pregunta 2
Pregunta
Neurogenesis (generation of new neurons) in the developing spinal cord occurs primarily in which of the following regions?
Pregunta 3
Pregunta
Bone Morphogenetic Proteins (BMPs) help with the differentiation of function in the CNS by inducing the development of which of the following?
Respuesta
-
sensory afferents in the alar plate
-
sensory afferents in the basal plate
-
motor efferents in the alar plate
-
motor efferents in the basal plate
Pregunta 4
Pregunta
Which of the following is a normal location of cerebrospinal fluid (CSF)?
Respuesta
-
subpial space
-
subarachnoid space
-
subdural space
-
epidural space
Pregunta 5
Pregunta
The ventral aspect of the neural tube (basal plate) is associated with which of the following?
Respuesta
-
CSF production
-
motor function
-
sensory processing
-
vision
Pregunta 6
Pregunta
Which of the following types of sensation is exclusively conveyed by the dorsal column-medial lemniscus pathway?
Respuesta
-
visceral fullness
-
temperature
-
vibration
-
pin prick
Pregunta 7
Pregunta
A 23-year old runner presents in clinic with dull pain from a laceration to her right heel. In which major
subdivision of the central nervous system does this somatosensory information cross the midline?
Respuesta
-
midbrain
-
spinal cord
-
medulla
-
pons
Pregunta 8
Pregunta
A vibrating tuning fork is placed on the left lateral malleolus. In which major subdivision of the central nervous system does this somatosensory information cross the midline?
Respuesta
-
Midbrain
-
Spinal cord
-
Medulla
-
Pons
Pregunta 9
Pregunta
The primary somatosensory cortex is the main sensory receptive area in the brain for the sense of touch. In which of the following lobes can this area be found?
Respuesta
-
Parietal lobe
-
Frontal lobe
-
Temporal lobe
-
Insular lobe
Pregunta 10
Pregunta
Pathways from the lower extremities (legs) travel along the posterior columns to synapse in which nucleus?
Respuesta
-
Cuneatus
-
Gracilis
-
Raphe
-
Internal arcuate
Pregunta 11
Pregunta
The emotional aspects of pain (eg, suffering) are processed in which part of the brain?
Pregunta 12
Pregunta
The carotid canal is located in which bone of the skull?
Respuesta
-
palatine
-
ethmoid
-
occipital
-
temporal
Pregunta 13
Pregunta
Which brain lobe sits within the middle cranial fossa?
Respuesta
-
anterior lobe
-
parietal lobe
-
temporal lobe
-
occipital lobe
Pregunta 14
Pregunta
A small ischemic stroke effecting lateral/inferior portions of the postcentral gyrus of the right parietal lobe (i.e., near the lateral sulcus) would be expected to produce somatosensory dysfunction in which area of the body?
Respuesta
-
left foot
-
right foot
-
left half of the face
-
right half of the face
Pregunta 15
Pregunta
The L4 dermatome includes the big toe. Therefore, neurosurgical resection of the left L4 dorsal root ganglion would produce what short-term somatosensory deficits?
Respuesta
-
Lack of temperature sensations, sparing proprioception, from the right big toe
-
Lack of temperature sensations and proprioceptive information from the left big toe
-
Lack of temperature sensations and proprioceptive information from the right big toe
-
Lack of temperature sensations, sparing proprioception, from the left big toe
Pregunta 16
Pregunta
Due to its association with relatively smaller receptive fields and fast-adapting receptors, which receptor type is best at two point discrimination?
Respuesta
-
Meissner corpuscle
-
Ruffini ending
-
Merkel disc
-
free nerve ending
Pregunta 17
Pregunta
Compared to blood serum, cerebral spinal fluid has which of the following characteristics?
Pregunta 18
Pregunta
Which of the following structures is composed of two layers of meningeal dura?
Respuesta
-
third ventricle
-
crista galli
-
tentorium cerebelli
-
neurohypophysis
Pregunta 19
Pregunta
The primitive forebrain (prosencephalon) gives rise to which of the following secondary vesicles?
Respuesta
-
telencephalon
-
mesencephalon
-
metencephalon
-
myelencephalon
Pregunta 20
Pregunta
The thalamus and hypothalamus are derived from which of the secondary vesicles?
Respuesta
-
metencephalon
-
myencephalon
-
mesencephalon
-
diencephalon
Pregunta 21
Pregunta
Which of the following are derivatives of the neural crest cells?
Respuesta
-
Ependymal cells that line the brain ventricles
-
Glial cells that form the myelin sheath of CNS axons
-
Primary sensory neurons of the dorsal root ganglia
-
Pyramidal cells of the cerebral cortex
Pregunta 22
Pregunta
Which of the following structures passes through the foramen spinosum?
Respuesta
-
Mandibular nerve (CN V3)
-
Middle meningeal artery
-
Greater petrosal nerve
-
Ophthalmic artery
Pregunta 23
Pregunta
Which of the following is an unpaired (midline) bone that is part of the neurocranium?
Respuesta
-
temporal
-
parietal
-
zygomatic
-
occipital
Pregunta 24
Pregunta
On which bone of the skull can the anterior clinoid process be found?
Respuesta
-
ethmoid
-
sphenoid
-
temporal
-
occipital
Pregunta 25
Pregunta
The groove for the transverse sinus can be found on which bone?
Respuesta
-
frontal
-
temporal
-
parietal
-
occipital