Anatomy 1 Final Exam - PAL 3 Verified Q&A 2023

neural tube - ANS-the spinal cord develops from the _________ spinal cord - ANS-Develops from the neural tube, has a hollow center filled with fluid 2; neuroblasts - ANS-the spinal cord develops _____#____ distinct clusters of ___________ alar plate and basal plate - ANS-two distinct clusters of neuroblasts developed by the spinal cord Dorsal - ANS-alar plate (dorsal or ventral?) neuroblasts - ANS-all cells at the alar plate will become _________ sensory - ANS-the alar plate is the (motor/sensor?) part alar - ANS-dorsal root ganglion comes from the (alar/basal?) plate ventral - ANS-basal plate (dorsal or ventral?) Interneurons - ANS-all cells from the basal plate become _________ motor side - ANS-basal plate (motor or sensory?) side grey matter white matter - ANS-both alar and basal plates become _________ matter everything surrounding them will become _________ matter sensory up and motor down - ANS-the spinal cord has two different pathways, _________ up and _________ down foramen magnum; lumbar (L1) - ANS-The spinal cord extends from the _________ _________ at base of the skull to the first _________ vertebra conus medullaris - ANS-terminal portion of the spine is called the _________ _________ Meninges - ANS-the spinal cord is covered with _________ conus medullaris; coccyx filum terminale - ANS-meninges of the spine extend past the _________ _________ and are attached to the _________. it is anchored to the coccyx by a group of filaments called _________ denticulate ligaments - ANS-the spinal cord attaches periodically to the the vertebrae by _________ _________ cauda equina - ANS-_________ _________ extends sacral and lumbar nerves beyond the Conus medullaris sacral and lumbar - ANS-cauda equina extend _________ and _________ nerves beyond the conus medullaris cervical enlargement and lumbar enlargement - ANS-2 enlargements of the spinal cord cervical - ANS-nerves going to the upper limbs branch off at the _________ enlargement lumbar - ANS-nerves going to the lower limbs branch off at the _________ enlargement anterior median fissure - ANS-groove at the front of the spinal cord that divides it into halves posterior median sulcus - ANS-groove at the back of the spinal cord that divides it into halves dorsal root ganglion - ANS-the posterior side of the spinal cord has swellings called _________ central canal - ANS-hollow, fluid-filled portion in the middle of the spinal cord grey commissure - ANS-center of grey matter that connects the two halfs of the spinal cord lateral horn, anterior horn, posterior horn - ANS-3 distinct regions of grey matter in the spinal cord multipolar - ANS-grey matter of the spine consists of _________ neurons interneurons - ANS-posterior horns contain _________ neurons somatic motor - ANS-anterior horns contain mostly cell bodies of _________ neurons autonomic motor - ANS-lateral horns are mostly cell bodies of _________ neurons Continues...