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Anatomy & Physiology > Chapter 14: The Brain & Cranial Nerves > Flashcards

Chapter 14: The Brain & Cranial Nerves Flashcards

1
Q

Cerebrum

A
  • Big Brain
  • Higher Mental Function
  • Right and left cerebral hemispheres
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2
Q

Gyri (gyrus)

A

Elevated ridges in the brain
- Increases surface area for gray matter

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2
Q

Cerebral Cortex

A

Outer gray matter

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3
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Fissure

A

Deeper grooves in the brain

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3
Q

Sulci (sulcus)

A

Shallow depression in the brain

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3
Q

Cerebellum

A

Little brain
- Right and left cerebellar hemispheres

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4
Q

White Matter

A

Bulk of the cerebrum

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4
Q

Basal Nuclei

A

Gray masses within white matter

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5
Q

Diencephalon

A

Inner core
- links cerebrum with brain stem
Epithalamus
Thalamus
Hypothalamus
- pituitary gland

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6
Q

Brain stem

A

Processes information between the spinal cord and cerebrum/cerebellum
- Midbrain
- Pons
- Medulla Oblongota

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7
Q

Ventricles

A

Cavities in the brain filled with cerebrospinal fluid

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7
Q

Fourth Ventricle

A

In the brainstem
- central canal of spinal cord

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8
Q

Lateral ventricals

A

In the cerebral hemisphere
Right lateral ventricle
Left lateral ventricle

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9
Q

Third Ventricle

A

Diencephalon area
- cerebral aqueduct; leads to fourth ventricle

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10
Q

Protection of the Brain

A
  1. Skull
  2. Meninges - stabilize
  3. Cerebrospinal fluid-protect against sudden movements
  4. Blood-Brain-Barrier-isolate brain from chemicals in blood
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11
Q

Dura Mater

A

Outer fibrous layer of connective tissue; fused to periosteum
- Dural sinuses between two layers in some locations
- Helps stabilize the position of the brain

12
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Arachnoid

A

Subarachnoid space containing cerebrospinal fluid

12
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Dural Sinuses

A

Contains venous (waste) blood

13
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Arachnoid granulations

A

Project into Dural sinus
- Returns CSF to blood

13
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Pia Mater

A

Blood vessels extend into every fold

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Anatomy & Physiology (13 decks)

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