Chapter 11: Neuroanatomy Flashcards
(49 cards)
Central Nervous System (CNS)
Brain and spinal cord
Peripheral Nervous System
Cranial nerves and spinal nerves
Somatic nervous system
Voluntary bodily function (skeletal muscles)
Autonomic nervous system (ANS)
Involuntary bodily functions (organs)
Sympathetic divison
Expand energy, fight or flight response
Parasympathetic division
Conserve energy
Cranial nerves
Emerge from the brain
Spinal nerves
Emerge from the spinal cord
Cerebrum
In the brain
Brainstem
Becomes the spinal cord
Cerebellum
“Little brain”
Balancing, movement, and coordination
CNS protection
Bony shell and vertebral column (skull and spine)
Meninges (dura, arachnoid, pia)
Cerebrospinal fluid (fluid that holds structures together)
Eight Cranial Bones
Temporal (2)
Parietal (2)
Occipital
Frontal
Ethmoid
Sphenoid
Vertebral Column (Spine)
30 skeletal divisions
7 cervical vertebrae (8 cranial nerves)
12 thoracic
5 lumbar
5 sacral
1 coccygeal
Dura mater
Outermost thick layer
Arachnoid Membrane
Between the dura and pia
Spinal web
CSF
Pia mater
Innermost thin layer
SuBdural Hematoma
Banna
Crescent shape
EPIdural Hematoma
Pie or lemon
Lens shaped
Cerebrospinal Fluid
Colorless, clear fluid produced by the choroid plexus most produced by the lateral and 4th ventricle
Functions of CSF
Cushions the CNS
Interface with vascular system
Glial cells
Helper cells
Types of glial cells
Schwann cells, oligodendrocytes, microglia, astrocytes
Astrocytes
Provides stiffness and overall support, protective