neuro functional anatomy and embryo Flashcards
what are the frontal lobes primarily responsible for?
socially appropriate behavior, sequencing, and future planning
the bilatoral hippocampal gyri are associated with…
the limbic system/memory
the occipital lobe is responsible for
vision
3 things the right hemisphere is associated with
- control of visual-spacial functions (map reading, locating ones’s self in space)
- art and imagination
- insight
3 things the left hemisphere is largely associated with
- speech and written language skills
- math and science
- logical reasoning
the spinal cord arises from what embryological component?
the caudal end of the neural tube
the embryological alar plate (which is separated from the basal plate by the longitudinal groove called the sulcus limitans) creates the…
dorsal posterior part of the spinal cord and becomes the sensory or afferent portion of the cord
the embryological basal plate which is separated from the alar plate by the longitudinal groove called the sulcus limitans) creates the…
ventral (ant.) part of the cord and becomes the motor, or efferent, portion of the spinal cord, and therefore would contain ant. horn cells
the lateral lip of the neural groove gives rise to the…
neural crest cells that dvp multipolar ganglion cells or autonomic ganglia, pseudounipolar cells of spinal and cranial nerve ganglia, leptomeningeal cells, schwann cells, melanocytes, chromaffin cells of the adrenal medulla and odontoblasts
multipolar ganglion cells or autonomic ganglia, pseudounipolar cells of spinal and cranial nerve ganglia, leptomeningeal cells, schwann cells, melanocytes, chromaffin cells of the adrenal medulla and odontoblasts all come from
neural crest cells (the lateral lip ofthe neural groove)
the rathke pouch is… and forms…
oral ectoderm that forms the ant pituitaru
te neural tube gives rise to the… which is then divided into what two things?
the spinal cord, which then becomes the alar and basal plate
what gives rise to the dorsal partof the spinal cord/becomes the sensory portion of the cord?
alar plate
what gives rise to the ventral part of the spinal cord/becomes the motor portion of the spinal cord
the basal plate
does the central canal have any nerve fibers inside of it?
no
the corticospinal tract has what type of fibers?
upper level motor neurons
lesions in the corticospinal tract lead to
upper moor neuron symp: ipsilateral spastic paresis and hyperreflexia.
fasciculations are caused by upper motor or lower motor neuron lesions?
lower
the dorsal columns carry what fibers?
proprioception, vibration and fine touch
lesions of the dorsal column cause
ipsilateral loss of proprioception and vibration sensation
dorsal root ganglia contain the
neuronal cell bodies of sensory neurons
dorsal root ganglia lesions cause
ipsilateral sensory deficits in dermatomes associated with them
the spinothalamic tract (aka the anterolateral tract) contains what types of fibers
pain and temp
a lesion in the spinothalamic tract causes
contralat loss of pain and temp beginning 1-2 segments below the level of the lesion
astrocytes, ependymal cells, and oligodendroglia cells are all derived from the
neural tube
microglia are derived from
blood monocytes
pseudounipolar cells of spinal and cranial nerve ganglia, Schwann cells, multipolar ganglion cells of autonomic ganglia, chromaffin cells of the adrenal medulla, odontoblasts, melanocytes and cells that make the leptomeninges (pia and arachnoid) are all derived from…
neural crest cells
