CNS

1
CNS
2
MYELOGRAM

• Spinal cord extends from where to where?
• Longer in male or female?
• Shrinks as we age
• sensory and motor nerves attached
  posterolaterally and pass through?
• CSF located where?

3

• Pia
• arachnoid
• dura mater
• subarachnoid space continues below L1 to second
  sacral segment
• Cauda equina?
• Intrathecal?

4
Meningeal spaces

• Epidural between dura and inner table of skull
• Subdural between dura and arachnoid
• Subarachnoid beneath arachnoid between
  arachnoid and pia mater

5
THREE DIVISIONS OF BRAIN

• Forebrain
• Cerebrum, thalamus, hypothalamus
• Midbrain
• midbrain
• Hindbrain
• Pons
• Medulla
• cerebellum

6
MATCHING

• CNS covered by these
• The middle layer of answer to question above
• tough mother
• Innermost layer
• Contains CSF

• ARACHNOID
• DURA MATER
• MENINGES
• PIA MATER
• SUBARACHNOID
• Rose

7
MATCHING

• THE PONS SEPARATE MIDBRAIN FROM __________(2
  ANSWERS)
• 12 PAIRS OF THESE
• POSTERIOR SECTION OF BRAIN, FUNCTIONS AS REFLEX
  CENTER
• FOLDS AND RIDGES IN BRAIN
• CAVITY THAT CONTAINS CSF
• THIS HAS TWO HEMISPHERES AND IS CONNECTED BY A
  GROUP OF FIBERS CALLED THE _________

• CEREBRUM
• CEREBELLUM
• CORPUS CALLOSUM
• GYRI
• VENTRICLE
• PONS
• MEDULLA OBLONGATA
• CRANIAL NERVES

8
White and gray matter

• White myelinated axons in brain and spinal cord
  (seen white on CT scans)
• Gray dendrites and cell bodies, basal ganglia

9
Why CT?

• Suspected brain neoplasms, tumors etc
• Brain metastasis
• Intracranial hemorrhage
• Aneurysm
• Absecess
• Brain atrophy
• Epidural and subdural hematomas
• Acquired and congenital abnormalities

10
Contrast and blood brain barrier

• What is the relationship between contrast and bbb?