Exam #4 Chapter 13 part 1 Flashcards
what does the brain develop from?
a fluid-filled neural tube
what does the fluid-filled center form in the adult brain?
the ventricles and canals
what passes through the brain stem?
many ascending and descending `tracts pass through
when is the neural tube formed?
in the late embryo
how does the neural tube form?
5 regions form which will become the 6 brain divisions
what does the neural tube give rise to?
the CNS
what dose the cephalic portion of the neural tube become?
the spinal cord
what develops in the anterior part of the neural tube
a series of pouches
what do the series of pouches that develop in the neural tube form?
3 regions of the brain
what are the 3 regions of the brain that the series of pouches form?
forebrain (prosencephalon), midbrain (mesencephalon) and hindbrain (rhombencephalon)
when does the forebrain form?
during early embryo
what does the forebrain divide into?
the telencephalon and diencephalon
when does the telencephalon and diencephalon develop from the forebrain?
during late embryo
what forms from the telencephalon?
the cerebrum
when does the midbrain develop?
during early embryo
when does the hindbrain develop?
during early embryo
what is the hindbrain divided into?
the metencephalon and myelencephalon
when does the metencephalon and myelencephalon develop from the hindbrain?
during late embryo
what adult part of the brain develops from the metencephalon?
the pons and cerebellum
what adult part of the brain does the myelencephalon form?
the medulla oblongata
what cavity is located in the cerebrum?
the lateral ventricles
what cavity is located in the diencephalon?
the 3rd ventricle
what cavity is located in the midbrain?
the cerebral aqueduct
what cavity is located in the pons and cerebellum?
4th ventricle