Ch 14 Flashcards

1
Q

Sulcus

A

Wrinkles in the brain

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2
Q

Gryrus

A

Parts of brain that stick out/lumps/bumps on brain

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3
Q

Cortex(Cerebral)

A

Grey matter found on the surface of the brain

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4
Q

Cerebrum(Cerebral Cortex)

A

Grey matter found on the surface of brain
-83% of the brain’s total volume

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5
Q

Cerebellum

A

Smaller part of the brain that makes up larger portion of neurons found in the brain

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6
Q

Diencephalon

A

Composed of Thalamus and Hypothalamus

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7
Q

Brain Stem

A

Midbrain, Pons, Medulla Oblongata

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8
Q

CSF flow

A

Found in sub arachnoid space of brain

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9
Q

Pia Mater of Brain

A

Deepest CT/Meningeal layer of brain that sits on Grey Matter/ attached to brain

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10
Q

Arachnoid Mater

A

Mid CT layer of brain that has Collagen fibers extending to the Pia Mater

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11
Q

Dura Mater

A

-Fused with Periosteum/ up against periosteum of Cranium
-No epidural space above dura Mater(unlike spinal cord)
-Dense Irregular Tissue filled with Collagen
-Splits to form venous sinuses

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12
Q

Astrocytes

A

Establishes blood-brain-barrier

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13
Q

Coroid Plexus

A

Structure composed of Ependymal cells with capillaries Where CSF is created and within brain ventricles and secreted.

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14
Q

Two Lateral Apetures & Median Aperture

A

Allows CSF to enter sub-arachnoid space and continue circulation

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15
Q

Potential Space

A

Central Canal

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16
Q

Question 8

A

Slide 8

17
Q

Ependymal Cells

A

Form Blood CSF Barrier, acts as a backup for Blood Brain Barrier, Secretes into the ventricles( Water, glucose, alcohol, gases)

18
Q

Arachnoid Vili

A

Allows for CSF to escape back into blood

19
Q

Functions of CSF

A

Fluid Provides Buoyancy for floating of Spinal Cord and Brain to prevent resting on the floor of cranium

Shock Absorber

Chemical Stability- Brings PH back to normal

20
Q

Decussation- M.O

A

Interneuron Axon crosses over to opposing side. MEDULLA OBLONGATA provides this function

21
Q

Pons

A

Acts as BRIDGE from cerebellum to midbrain and stores Respiration centers

22
Q

Medulla Oblongata

A

Site of decussation
Contain collections of Neurosoma that control heart function
Respiratory center

23
Q

[Mid Brain]3 parts

A

Superior Colliculi
Inferior Colliculi

24
Q

Superior Colliculi

A

Provides visual reflexes

25
Q

Inferior Colliculi

A

Provides Auditory reflex, and location input

26
Q

Pretectal Area

A

Part of pupillary light reflex

27
Q

Reticular Formation

A

Reticular Activating System- Habituation

28
Q

Cerebellum

A

-Divided in R&L by Vermis,
-1/10th the size but 60% surface are of cortex,
-more than half of all neurons found within brain

29
Q

Cerebellum

A

-Acts as a comparator for past & present stimuli, (time, pitch, texture)
- Provides Motor coordination and learning
-Predictor of trajectory, and speed

30
Q

Thalamus

A

-Gateway to cerebral cortex/ relay station for 5 senses and body regulation
- Part of Limbic system( Memory/Emotion)

31
Q

Hypothalamus

A

Endocrine Gland/Hormone secreter, and autonomic control center- (/Heart rate/blood pressure/thermoregulation)

Contain Nuclei for Hunger, fullness/Satiety, and Hydration

Contain nuclei that control Circadian Rhythm

32
Q

Epithalamus

A

Responsible for melatonin secretion-[(Pineal Gland)]

Responsible for glucose homeostasis-[(Pancreas)]

Contains ([Habenula])- little strap that connects limbic sttem to midbrain

33
Q

Limbic System Anatomy

A

Slide?

34
Q

Alpha Waves

A

Awake, eyes closed, non-concentrational

35
Q

Beta Waves

A

Heavily Concentrated, receiving sensory stimuli

36
Q

Theta Waves

A

Drowsy/sleepy

37
Q

Delta Waves

A

Deep sleep