Skull and Brain Flashcards
The skull is composed of how many bones?
28
T or F: The cranium does not include the mandible
TRUE
what are the developmental regions of the skull?
1). Neurocranium
2). Basicranium
3). Viscerocranium
Where does the brain develop from?
The expansion of cranial end of the neural tube
What are the expansions of neural tubes called?
vesicles
What are the three primary brain vesicles?
1). Prosencephalon» splits into Telencephalon and Diencephalon (Forebrain)
2). Mesencephalon (midbrain)
3). Rhombencephalon (Hindbrain)» Metencephalon and Myelencephalon
What are the 5 secondary brain vesicles?
1). Cerebrum
2). Diencephalon (thalmus, hypo, epithalamus)
3). Midbrain
4). Pons (cerebellum)
5). Medulla oblongata
What three structures make up the brain stem?
1). Midbrain
2). Pons
3). Medulla Oblongata
What is the purpose of Sulci and Gyri ?
Increases surface area: allows for more brain activity to occur
Sulci
shallow grooves seperating gyri
Gyri
elevated ridges on the brain
Cerebral cortex
outer layer responsible for conscious thought, problem solving, personality, dreams and language