Brain Development Flashcards
Three sections of early embryonic brain:
prosencephalon, mesencephalon, rhombencephalon
Rhombencephalon
posterior section of early brain
Mesencephalon
middle section of early brain
Prosencephalon
anterior section of early brain
Forebrain
Prosencephalon
Midbrain
Mesencephalon
Hindbrain
Rhombencephalon
Middle stage embryological brain sections
Telencephalon, diencephalon, mesencephalon (no change from early embryonic name), metencephalon, myelencephalon. Five sections.
Myelencephalon becomes:
medulla oblongata
Medulla oblongata function:
autonomic functions - breathing, blood pressure, heart rate
Metencephalon becomes:
cerebellum
Cerebellum function:
Fine Movement Coordination; Balance and Equilibrium; Muscle Tone; Flight. HIGHLY developed in birds.
Mesencephalon becomes:
Corpora quadrigemina and superior colliculi
Corpora quadrigemina function:
relay center for sensory input from eyes and nose to cerebrum for muscular coordination.
Diencephalon becomes:
TRICK! No change. Once the prosencephalon changes into diencephalon and telencephalon, no more name changes.
Telencephalon becomes:
Basically the olfactory nerve and the cerebrum.
Diencephalon function:
part of response system for somatic changes in response to changes in day length - reproduction and molting.
Neocortex region:
Outer region of cerebrum
Three meninges:
dura mater, arachnoid, pia mater.
Cerebrum function:
cognitive abilities, memory, self-recognition.