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Brain Structures and Functions

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Presentation on theme: "Brain Structures and Functions"— Presentation transcript:

1 Brain Structures and Functions

2 The Nervous System The central nervous system (CNS): brain and the spinal cord. Peripheral nervous system (PNS): nerves. Motor neurons: deliver the instructions from the brain to the rest of your body. The spinal cord: carries messages to and from the brain.

3 The Brain Three main parts of brain: the forebrain, midbrain, and hindbrain. Forebrain: cerebrum, thalamus, and hypothalamus (part of the limbic system). Midbrain: tectum and tegmentum. Hindbrain: cerebellum, pons and medulla.

4 The Cerebrum Largest part of the human brain, associated with higher brain function such as thought and action. Divided into four sections, called "lobes": the frontal lobe (reasoning, planning, parts of speech, movement, emotions, and problem solving); parietal lobe (movement, orientation, recognition, perception of stimuli); occipital lobe (visual processing); and temporal lobe (perception and recognition of auditory stimuli, memory, and speech). Divided into two halves: left hemisphere = logic and right hemisphere= creativity.

5 The Cerebellum Regulates and coordinates movement, posture, and balance. “Little brain.” Two hemispheres.

6 Limbic System ”Emotional brain" is found buried within the cerebrum.
Contains the thalamus (sensory and motor functions); hypothalamus (emotion, thirst, hunger, circadian rhythms); amygdala (memory and emotion); and hippocampus (learning and memory).

7 Brain Stem Responsible for basic vital life functions such as breathing, heartbeat, and blood pressure. The brain stem is made of the midbrain (vision, hearing, eye movement and bodily movement); pons (motor control and sensory analysis); and medulla (maintaining vital bodily functions such as breathing).

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