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Nervous System Notes | Coordination and Coordination Notes 2

Brain Forebrain vs Midbrain vs Hindbrain

Forebrain (can still SURVIVE even if damaged) Cerebrum 	Control personality, speech and muscle movement 	Deals with language 	Responsible for hearing and smell 	Decipher visual info  Thalamus 	Sorts data 	Suppress or enhance some signals 		Before sending the sorted info to the appropriate brain centre  			For further interpretation and integration 	Relay impulses from motor cortex to spinal cord  Hypothalamus  	- Central monitoring and control station of body activities 		○ Control autonomic nervous system 			§ In turn control involuntary responses in body (pg 257) 		○ Regulate body temperature (chapter 8) 		○ Regulate blood osmotic pressure (chapter 7) 		○ Control endocrine system 			§ Through control of pituitary gland (chapter excretion) 			§ Produces and regulates secretion of hormones (ADH-->excretion topic) 			 		○ Regulate food intake  			§ Sensations of hunger or fullness 		○ Induce sleep or wakefulness 		○ Control emotions  Midbrain (half conscious) 	• Deal with input from various organ 	• Relay message from eats 	• Control movements of eye 	• Filter sensory input before 	They reach the conscious regions of brain 	(Que: Why mothers can sleep through loud music but wake on hearing the whimpering of baby) 	 Hindbrain (can cause INSTANT DEATH) Cerebellum 	Where sensory info from body muscles, auditory and visual systems 			And input from motor pathways  	Used to evaluate the body's position 	Then relays to cerebrum 		A plan for coordinating and fine-tuning movement Medulla oblongata 	Where breathing, circulation, swallowing and digestion  	Under involuntary control (Que: What happens to a blow to medulla oblongata? Ans: instant choking sensation, unconsciousness and even death) 	 What happens when cerebellum is damaged? Jerky, uncoordinated body movement and loss of equilibrium

Forebrain (can still SURVIVE even if damaged) Cerebrum Control personality, speech and muscle movement Deals with language Responsible for hearing and smell Decipher visual info Thalamus Sorts data Suppress or enhance some signals Before sending the sorted info to the appropriate brain centre For further interpretation and integration Relay impulses from motor cortex to spinal cord Hypothalamus - Central monitoring and control station of body activities ○ Control autonomic nervous system § In turn control involuntary responses in body (pg 257) ○ Regulate body temperature (chapter 8) ○ Regulate blood osmotic pressure (chapter 7) ○ Control endocrine system § Through control of pituitary gland (chapter excretion) § Produces and regulates secretion of hormones (ADH-->excretion topic) ○ Regulate food intake § Sensations of hunger or fullness ○ Induce sleep or wakefulness ○ Control emotions Midbrain (half conscious) • Deal with input from various organ • Relay message from eats • Control movements of eye • Filter sensory input before They reach the conscious regions of brain (Que: Why mothers can sleep through loud music but wake on hearing the whimpering of baby) Hindbrain (can cause INSTANT DEATH) Cerebellum Where sensory info from body muscles, auditory and visual systems And input from motor pathways Used to evaluate the body's position Then relays to cerebrum A plan for coordinating and fine-tuning movement Medulla oblongata Where breathing, circulation, swallowing and digestion Under involuntary control (Que: What happens to a blow to medulla oblongata? Ans: instant choking sensation, unconsciousness and even death) What happens when cerebellum is damaged? Jerky, uncoordinated body movement and loss of equilibrium

Forebrain (can still SURVIVE even if damaged)
Cerebrum
Control personality, speech and muscle movement
Deals with language
Responsible for hearing and smell
Decipher visual info
Thalamus
Sorts data
Suppress or enhance some signals
Before sending the sorted info to the appropriate brain centre
For further interpretation and integration
Relay impulses from motor cortex to spinal cord
Hypothalamus
– Central monitoring and control station of body activities
○ Control autonomic nervous system
§ In turn control involuntary responses in body (pg 257)
○ Regulate body temperature (chapter 8)
○ Regulate blood osmotic pressure (chapter 7)
○ Control endocrine system
§ Through control of pituitary gland (chapter excretion)
§ Produces and regulates secretion of hormones (ADH–>excretion topic)
○ Regulate food intake
§ Sensations of hunger or fullness
○ Induce sleep or wakefulness
○ Control emotions
Midbrain (half conscious)
• Deal with input from various organ
• Relay message from eats
• Control movements of eye
• Filter sensory input before
They reach the conscious regions of brain
(Que: Why mothers can sleep through loud music but wake on hearing the whimpering of baby)
Hindbrain (can cause INSTANT DEATH)
Cerebellum
Where sensory info from body muscles, auditory and visual systems
And input from motor pathways
Used to evaluate the body’s position
Then relays to cerebrum
A plan for coordinating and fine-tuning movement
Medulla oblongata
Where breathing, circulation, swallowing and digestion
Under involuntary control
(Que: What happens to a blow to medulla oblongata?
Ans: instant choking sensation, unconsciousness and even death)
What happens when cerebellum is damaged?
Jerky, uncoordinated body movement and loss of equilibrium

Forebrain (can still SURVIVE even if damaged)

Cerebrum

Control personality, speech and muscle movement

Deals with language

Responsible for hearing and smell

Decipher visual info

Thalamus

Sorts data

Suppress or enhance some signals

Before sending the sorted info to the appropriate brain centre

For further interpretation and integration

Relay impulses from motor cortex to spinal cord

Hypothalamus

  • Central monitoring and control station of body activities
    • Control autonomic nervous system
      • In turn control involuntary responses in body (pg 257)
    • Regulate body temperature (chapter 8)
    • Regulate blood osmotic pressure (chapter 7)
    • Control endocrine system
      • Through control of pituitary gland (chapter excretion)
      • Produces and regulates secretion of hormones (ADH–>excretion topic)
  • Regulate food intake
    • Sensations of hunger or fullness
  • Induce sleep or wakefulness
  • Control emotions

Midbrain (half conscious)

  • Deal with input from various organ
  • Relay message from eats
  • Control movements of eye
  • Filter sensory input before

They reach the conscious regions of brain

(Que: Why mothers can sleep through loud music but wake on hearing the whimpering of baby)

Hindbrain (can cause INSTANT DEATH)

Cerebellum

Where sensory info from body muscles, auditory and visual systems

And input from motor pathways

Used to evaluate the body’s position

Then relays to cerebrum

A plan for coordinating and fine-tuning movement

Medulla oblongata

Where breathing, circulation, swallowing and digestion

Under involuntary control

(Que: What happens to a blow to medulla oblongata?

Ans: instant choking sensation, unconsciousness and even death)

What happens when cerebellum is damaged?

Jerky, uncoordinated body movement and loss of equilibrium

 

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