Lecture - brain development

what happens to the anterior cells of the neural tube

constrict and thicken via cell division and create regional differentiation

what do the anterior cells of the neural tube become

the presumptive brain, all 3 parts

what are the 3 parts of the 3 part brain

prosencephalon

mesencephalon

rhombencephalon

prosencephalon =

forebrain

mesencephalon =

midbrain

rhombencephalon =

hindbrain

what are the walls of the brain made up of

neural tube ectoderm

what does the prosencephalon become in the 5 part brain

telencephalon

diencephalon

what does the mesencephalon become in the 5 part brain

stays as mesencephalon

what does the rhombencephalon become in the 5 part brain

metencephalon

myelencephalon

list the order of 5 part brain from anterior to posterior

telencephalon

diencephalon

mesencephalon

metencephalon

myelencephalon

telencephalon walls become

cerebrum

diencephalon walls become

thalamus, hypothalamus, and epithalamus

mesencephalon walls become

midbrain

metencephalon walls become

pons and cerebellum

myelencephalon walls become

medulla oblongata

what are the cavities

internal space of the neural tube with no cells

eventually become ventricles

the ventricles are formed from

the cavities of the neural tube

what are the ventricles of the telencephalon

lateral ventricles

what are the ventricles of the diencephalon

third ventricles

what are the ventricles of the mesencephalon

aqueduct of the midbrain

what are the ventricles of the metencephalon

upper part of 4th ventricle

what are the ventricles of the myelencephalon

lower part of 4th ventricle

what part of the 5 part brain do the eyes come from

telencephalon

Does the mesencephalon divide?

no

the lateral part of the telencephalon are important for what

eyes

what is created from the telencephalon

brain tissue is sent out to form optic nerve which ultimately makes the retina

retina is made of

neural tissue cells