Central Nervous System Explained
CENTRAL NERVOUS SYSTEM
The Brain -recap
* The brain receives signals from inside and outside the body. * It keeps the basic, body functions such as heart beat rate, breathing rate and temperature control ticking over, without us having to think about it. * It also allows us to decide to do things like running and walking and many more complex tasks. It is where our personalities and moods and emotions come from. * The brain of a human being makes up about one-fiftieth of the body's weight and is protected by the skull and by membranes called the meninges. (You have probably heard of meningitis - this is the illness that results from an infection and subsequent inflammation of the meninges). * Cerebrospinal fluid bathes the outside of the brain and fills the ventricles. * The human brain is thought to contain ten billion (1010) neurones - about the same number as the stars in our Galaxy. * Each neurone may be in contact with a thousand other cells, providing an immense number of different communication routes.
Central sucus Motor cortex Optical lobe LOBE cerebellum temporal LOBE Frontol Lobe
MEDULLA
pons
Mid brain
Brain stem
Label the structures of the brain in the illustration below:
* 2.
1.
4.
3.
Lobe 1: Optical
Chief functions:
Visual input,colour,light and movement
Lobe 2: Temporal
Chief functions:
Hearing,memory,understanding,language and speech
Lobe 3: Frontal
Chief functions:
Attention,concentration,thinking and understanding
Lobe 4: Parietal
Chief functions:
Tactile perception,touch,awareness.
The brain is divided into four lobes. Please label them on the diagram below and outline the chief functions associated with each lobe.
Briefly outline the chief function of the following anatomical structures of the brain: * Amygdala –
Limbic system structure, involved with emotions such as fear, anger and pleasure. * Cerebellum –
The Brain -recap
* The brain receives signals from inside and outside the body. * It keeps the basic, body functions such as heart beat rate, breathing rate and temperature control ticking over, without us having to think about it. * It also allows us to decide to do things like running and walking and many more complex tasks. It is where our personalities and moods and emotions come from. * The brain of a human being makes up about one-fiftieth of the body's weight and is protected by the skull and by membranes called the meninges. (You have probably heard of meningitis - this is the illness that results from an infection and subsequent inflammation of the meninges). * Cerebrospinal fluid bathes the outside of the brain and fills the ventricles. * The human brain is thought to contain ten billion (1010) neurones - about the same number as the stars in our Galaxy. * Each neurone may be in contact with a thousand other cells, providing an immense number of different communication routes.
Central sucus Motor cortex Optical lobe LOBE cerebellum temporal LOBE Frontol Lobe
MEDULLA
pons
Mid brain
Brain stem
Label the structures of the brain in the illustration below:
* 2.
1.
4.
3.
Lobe 1: Optical
Chief functions:
Visual input,colour,light and movement
Lobe 2: Temporal
Chief functions:
Hearing,memory,understanding,language and speech
Lobe 3: Frontal
Chief functions:
Attention,concentration,thinking and understanding
Lobe 4: Parietal
Chief functions:
Tactile perception,touch,awareness.
The brain is divided into four lobes. Please label them on the diagram below and outline the chief functions associated with each lobe.
Briefly outline the chief function of the following anatomical structures of the brain: * Amygdala –
Limbic system structure, involved with emotions such as fear, anger and pleasure. * Cerebellum –