Skull and Brain Flashcards

1
Q

The skull is composed of how many bones?

A

28

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2
Q

T or F: The cranium does not include the mandible

A

TRUE

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3
Q

what are the developmental regions of the skull?

A

1). Neurocranium
2). Basicranium
3). Viscerocranium

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4
Q

Where does the brain develop from?

A

The expansion of cranial end of the neural tube

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5
Q

What are the expansions of neural tubes called?

A

vesicles

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6
Q

What are the three primary brain vesicles?

A

1). Prosencephalon» splits into Telencephalon and Diencephalon (Forebrain)
2). Mesencephalon (midbrain)
3). Rhombencephalon (Hindbrain)» Metencephalon and Myelencephalon

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7
Q

What are the 5 secondary brain vesicles?

A

1). Cerebrum
2). Diencephalon (thalmus, hypo, epithalamus)
3). Midbrain
4). Pons (cerebellum)
5). Medulla oblongata

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8
Q

What three structures make up the brain stem?

A

1). Midbrain
2). Pons
3). Medulla Oblongata

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9
Q

What is the purpose of Sulci and Gyri ?

A

Increases surface area: allows for more brain activity to occur

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10
Q

Sulci

A

shallow grooves seperating gyri

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11
Q

Gyri

A

elevated ridges on the brain

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12
Q

Cerebral cortex

A

outer layer responsible for conscious thought, problem solving, personality, dreams and language

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