Nervous System Overview Flashcards
What makes something CNS tissue
They are covered in meniges
Does proprioception go through the thalamus
Nope it is an unconscious process
What is the cortex
Superficial 3 mm of gray matter in the brain
What does the pons do
Almost exclusively movement
What is the road to the cerebellum and allows info in and out of the brain
Pons
What does the medulla control
Respiration and heart rate
Where does the brainstem end
Pyramids
What is the main function of the spinal cord
Main pathways connecting the CNS to PNS
What is the main function of the medulla
Vomiting, sneezing, deals with autonomic functions of breathing, heart rate, and blood pressure
What is the main function of the pons
Links midbrain and hindbrain, concerned with motor coordination, posture, and balance
What is the main function of the cerebellum
Prominent hindbrain structure concerned with motor coordination, posture, and balance
What is the main function of the midbrain
Sensory and motor functions including visual and auditory reflexes
What is located in the diencephalon
Thalamus and hypothalamus
What is the main function of the thalamus
Relay sensory info to the cerebral cortex
What is the main function of the hypothalamus
Governs reproductive, homeostatic, and circadian rhythm
What is the main function of the cerebrum
Controls all voluntary actions in the body
What causes locked in syndrome
Lesion to pons due to destruction of anterior neurons of the pons
What are the 3 categories of myelin structures
- Association
- Projection
- Commissural
What does white matter allow for in the brain
Communication
What happens to the proportion of white matter to gray as you go down the spinal cord
The amount decreases
Is the dorsal horn sensory or motor
Sensory
Is the ventral horn sensory or motor
Motor
Afferent is sensory in or out
Sensory in
Efferent is motor in or out
Motor out
What does the brainstem control
Motor function and vital control
