Ch 14

Question 1

Sulcus

Answer 1

Wrinkles in the brain

Question 2

Gryrus

Answer 2

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

Question 3

Cortex(Cerebral)

Answer 3

Grey matter found on the surface of the brain

Question 4

Cerebrum(Cerebral Cortex)

Answer 4

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

Question 5

Cerebellum

Answer 5

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

Question 6

Diencephalon

Answer 6

Composed of Thalamus and Hypothalamus

Question 7

Brain Stem

Answer 7

Midbrain, Pons, Medulla Oblongata

Question 8

CSF flow

Answer 8

Found in sub arachnoid space of brain

Question 9

Pia Mater of Brain

Answer 9

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

Question 10

Arachnoid Mater

Answer 10

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

Question 11

Dura Mater

Answer 11

-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

Question 12

Astrocytes

Answer 12

Establishes blood-brain-barrier

Question 13

Coroid Plexus

Answer 13

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

Question 14

Two Lateral Apetures & Median Aperture

Answer 14

Allows CSF to enter sub-arachnoid space and continue circulation

Question 15

Potential Space

Answer 15

Central Canal

Question 16

Question 8

Answer 16

Slide 8

Question 17

Ependymal Cells

Answer 17

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

Question 18

Arachnoid Vili

Answer 18

Allows for CSF to escape back into blood

Question 19

Functions of CSF

Answer 19

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

Question 20

Decussation- M.O

Answer 20

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

Question 21

Pons

Answer 21

Acts as BRIDGE from cerebellum to midbrain and stores Respiration centers

Question 22

Medulla Oblongata

Answer 22

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

Question 23

[Mid Brain]3 parts

Answer 23

Superior Colliculi
Inferior Colliculi

Question 24

Superior Colliculi

Answer 24

Provides visual reflexes

Question 25

Inferior Colliculi

Answer 25

Provides Auditory reflex, and location input

Question 26

Pretectal Area

Answer 26

Part of pupillary light reflex

Question 27

Reticular Formation

Answer 27

Reticular Activating System- Habituation

Question 28

Cerebellum

Answer 28

-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

Question 29

Cerebellum

Answer 29

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

Question 30

Thalamus

Answer 30

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

Question 31

Hypothalamus

Answer 31

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

Question 32

Epithalamus

Answer 32

Responsible for melatonin secretion-[(Pineal Gland)] Responsible for glucose homeostasis-[(Pancreas)] Contains ([Habenula])- little strap that connects limbic sttem to midbrain

Question 33

Limbic System Anatomy

Answer 33

Slide?

Question 34

Alpha Waves

Answer 34

Awake, eyes closed, non-concentrational

Question 35

Beta Waves

Answer 35

Heavily Concentrated, receiving sensory stimuli

Question 36

Theta Waves

Answer 36

Drowsy/sleepy

Question 37

Delta Waves

Answer 37

Deep sleep