Ch 15.2 Meninges and Ventricles

Question 1

Limbic system summary

Answer 1

• Cerebral and diencephalic structures that form a ring around the diencephalon
• Process and experience emotions
• Memory formation - integration of past memories of physical sensations with emotional states

Question 2

Limbic system componets

Answer 2

Hippocampus
Fornix
amygdaloid body

Question 3

hippocampus

Answer 3

• Essential in consolidating long term memories

Question 4

• Fornix

Answer 4

• Thin tract of white for connection

Question 5

• Amygdaloid body

Answer 5

• Involved in emotion, especially fear

Question 6

Cranial Meninges & ventricles function

Answer 6

• Support and protections of the brain
  
  • Bony cranium
  • PROTECTIVE CONNECTIVE TISSUE (MENINGES)
  • Cerebral fluid (CSF)
  • Blood-brain barrier

Question 7

Layers of cranial meninges

Answer 7

dura matter
arachnoid matter
Pia matter

Question 8

dura matter

Answer 8

• Most superficial
  - Periosteal and meningeal

Question 9

arachnoid matter

Answer 9

• Subarachnoid space
  - 2nd layer

Question 10

pia matter

Answer 10

• Cerebral cortex
  - Bottom layer

Question 11

Ventricles of the brain

Answer 11

lateral
third
fourth

Question 12

lateral ventricles

Answer 12

• Top ventricles look like testes

Question 13

• Third ventricle

Answer 13

• middle of head below lateral ventricles

Question 14

• Fourth ventricle

Answer 14

• At cerebellum area

Question 15

Ventricles and cerebrospinal fluid flow

Answer 15

• Lateral ventricles (2) -> Interventricular foramina (2) -> 3rd ventricle -> cerebral aqueduct -> 4th ventricle -> central canal

Question 16

number of cranial nerves

Answer 16

12 (I -> XII)

Question 17

CN I

Answer 17

Olfactory
sensory
Smell

Question 18

CN II

Answer 18

Optic
Sensory
Vision

Question 19

CN III

Answer 19

Oculomotor
Motor
Most eye movement

Question 20

CN IV

Answer 20

Trochlear
Motor
Moves eye

Question 21

CN V

Answer 21

Trigeminal
Both
Face sensation, mastication

Question 22

CN VI

Answer 22

Abducens
Motor
Abducts eye

Question 23

CN VII

Answer 23

Facial
Both
Facial expression, taste

Question 24

CN VIII

Answer 24

vestibulocochlear
Sensory
Hearing, balance

Question 25

CN IX

Answer 25

Glossopharyngeal Both Taste and gag reflex

Question 26

CN X

Answer 26

Vagus Both Gag reflex, Parasympathetic innervation

Question 27

CN XI

Answer 27

Accessory Motor Shoulder Shrug

Question 28

CN XII

Answer 28

Hypoglossal Motor Swallowing, speech