Central Nervous System Flashcards
What makes up the CNS
Brain and the Spinal Cord
What meninges cover the CNS
Dura mater
Arachnoid
Pia mater
What are the segments of the spinal cord
Cervical Thoracic Lumbar Sacral Coccygeal
How many pairs of spinal nerves are there
31
How many pairs of cervical nerves are there
8
How many pairs of thoracic nerves are there
12
How many pairs of lumbar nerves are there
5
How many pairs of sacral nerves are there
5
How many pairs of coccygeal nerves are there
1
What does grey matter contain
Neurone cell bodies and some axons
What does white matter contain
Nerve axons
What is dorsal horn grey matter
Location of first order afferent neuron terminals
Found in dorsal or posterior part of spinal cord
Contains cell bodies of second order sensory neurons
What is ventral horn grey matter
Contains cell bodies of motor neurons
Found in ventral or anterior part of spinal cord
What does white matter stain myelin
Dark
What does grey matter stain myelin
Pale
What regions of the spinal cord contain more white matter than grey matter
Cervical and thoracic regions
What regions of the spinal cord contains more grey matter than white matter
Lumbar and sacral regions
Where is the grey and white matter located in the spinal cord
White matter surrounds the grey matter
Where is the white and grey matter located in the brain
White matter inside the core with grey matter on the surface
Which parts of the brain are located in the forebrain
The cerebral cortex and the diencephalon
Which parts of the brain are located in the hindbrain
Pons
Medulla oblongata
Cerebellum
What is the function of the midbrain
Visual and auditory reflexes
Pain control
What is the function of the hindbrain
Vital centres regulating breathing, heart, blood vessel - medulla
Control of balance and posture - cerebellum
Which parts of the brain are located in the diencephalon
Thalamus
Hypothalamus
Cerebrum