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- Michigan
- Grand Valley State University
- Biomedical Science
- Biomedical Science 427
- Taylor
- Nuero objective 1
Nuero objective 1
Biomedical Science 427 with Taylor at Grand Valley State University
About this deck
By: Marci Westman
Created: 2011-09-25
Size: 27 flashcards
Views: 2
Created: 2011-09-25
Size: 27 flashcards
Views: 2
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name the three germ layers in an early stage embryo
ectoderm-skin and ns
mesoderm-muscle and bone
endoderm-lining of organs
mesoderm-muscle and bone
endoderm-lining of organs
how does the ectoderm give rise to the CNS and PNS
The ectoderm become thickened at week three and the sides start to rise (nueral fold) which makes a dent called the nueral groove. They come together to form the nueral tube.(week 4) The cells that stay in make up the CNS and the cells that migrate out make up nueral crest-PNS
nueroectoderm
undergoes three stages of development: transformation into the neural plate, transformation into the neural groove (with associated neural folds), and transformation into the neural tube.
____ are mesoderm that will give rise to bones of the skeleton and muscles.
somites
failure to close the rostral (anterior) nueropore leads to ...
anencephaly
failure to close the posterior (caudal) nueropore leads to...
spina bifida
what are the parts of the nueral groove during nueral tube formation?
medial hinge point, lateral hinge point
name the brain flexures and vessicles in a four week embryo
hindbrain (rhomencephalon) midbrain (mesensephalon) and forebrain (prosencephalon) the flexures are cervical and cephalic
what are the vessicles and flexures in a six week embryo
myencephalon, metencephalon, mesencephalon,dyencephalon,telencephalon
cervical, pontine, cephalic flexures
cervical, pontine, cephalic flexures
what is the rostral pontine?
metencephalon
what is the caudal medullary
myencephalon
what is the interbrain
diencephalon
what is the end brain?
telencephalon
what are the adult derivatives of the endbrain (telencephalon)
olfactory bulb, corpus collosum, cerebral cortex, corticol white matter, internal capsule, basal ganglia
what are the adult derivatives of the interbrain (diencephalon)
thalamus, hypothalamus, pineal gland, optic vessel--retina and optic nerve
the midbrain (mesencephalon) is broken up into the ____ and ____
tectum and tegmentum
the adult derivatives of the tectum include..
the superioir and inferior colliculi
the adult derivives of the tegmetum include..
the red nucles, substantia nigra and cerebral aqueduct.
the ventral mesencephalon is known as
tegmentum
the dorsal mesencephalon is known as the ___
tectum
the metencephalon is part of the ____brain and it develops and grows untul it forms the _____
hindbrain
cerebellum
cerebellum
in the metencephalon the cerebellum arose from the ________
rhombic lips
in a cross sectional view of the embryonic brain looking at the metencephalon what can you see?
at first the rhombic lips and as it matures that becomes the cerebellum. You can also see pons and the fourth ventricle.
in a cross sectional view of the embryonic brain looking at the myencephalon what can you see?
the medulla and the medullary pyramids. Also the 4th ventricle which is more flat and spread out then it was in the metencephalon
what is the difference btwn the 4th ventricles in the mesencephalon and myelencephalon?
in the myelencephalon it is more flat and spread out.
the basal plates have more ____ function and the alar plates have more _____ function.
motor, sensory
what is the indentation between the basal plate and the alar plate?
sulcus limitans
About this deck
By: Marci Westman
Created: 2011-09-25
Size: 27 flashcards
Views: 2
Created: 2011-09-25
Size: 27 flashcards
Views: 2
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“I have been getting MUCH better grades on all my tests for school. Flash cards, notes, and quizzes are great on here. Thanks!”
Kathy
Kathy