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DAA lecture exam 3 Questions And Answers
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DAA lecture exam 3 Questions And Answers
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DAA lecture exam 3 Questions And Answers3 major events during the neuronal developmental process
Correct Answers -proliferation
-migration
-differentiation
a bundle of nerve roots called ____ innervate pelvic organs and
lower limb Correct Answers cauda equina
A structure known as the _______ plexus produces CSF.
Correct Answers choroid
adult derivative of the Midbrain Correct Answers aqueduct
adult derivatives of the forebrain Correct Answers lateral
ventricles
third ventricle
after 6 weeks of development the alar plate of the spinal cord
turns into Correct Answers dorsal gray horn
after 6 weeks of development the basal plate of the spinal cord
turns into Correct Answers ventral gray horn
after 6 weeks the marginal zone of the spinal cord turns into
Correct Answers white matter of the spinal cord
At what level does fusion of the neural folds start? Correct
Answers fusion starts at 4-6 somites
,Caudal neural tube forms the Correct Answers spinal cord
cells that migrate anteriorly give rise to Correct Answers
muscles of the limbs and trunk (hypaxial muscles) and
associated dermis
Cells that migrate posteriorly give rise to Correct Answers
intrinsic back muscles (epaxial muscles)
Cerebellum function Correct Answers coordination of
voluntary movements and balance
derivatives of neural crest Correct Answers -sensory neurons in
the PNS
-Postsynaptic autonomic neurons
-schwann cells
-adrenal medulla cells
-head mesenchyme
-melanocytes in the skin
-arachnoid and pia mater of meninges (dura mater from
mesoderm)
derivatives of neural crest cells differentiate into neurons and
become Correct Answers sensory neurons -GSA, GVA - In
Dorsal root
derivatives of the neural tube include Correct Answers neurons
of the CNS
Supporting cells of the CNS
Lower motor neurons of the CNS
Preganglionic autonomic neurons of the CNS
, Developing nerve cells in the ________ region of the neural
tube become somatic motor neurons (GSE). Correct Answers
Anterior
developing nerve cells in the anterior region of neural tube
become Correct Answers motor neurons - GSE, GVE- in
ventral root
dorsal horn contains Correct Answers sensory neurons
effects of parasympathetic stimulation Correct Answers Miosis
salivation
increased peristalsis and GIT secretions
Bronchoconstriction
Erection
Function of parasympathetic nervous system Correct Answers
dominate controller of most autonomic functions most of the
time
Functions of the sympathetic nervous system Correct Answers
1. controls dually innervated tissues under ordinary resting
conditions
2. maintain normal tone in smooth muscles of blood vessels
(vasomotor)
3. Fight or Flight
gray matter of the spinal cord contains Correct Answers neuron
cell bodies
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