Presentation on theme: "NERVOUS SYSTEM MCGONIGLE Intro to Psychology. Nervous System Made up of the spinal cord and the brain Neurons : Nerve cell – the neurons transmit."— Presentation transcript:
Nervous System Made up of the spinal cord and the brain Neurons : Nerve cell – the neurons transmit messages to the spinal cord and to the brain. ( knee reflex) 3 types of neurons.
Types of Neurons Sensory Neurons Motor Neurons Interneurons – found between other neurons.
Dendrite Branches that extend from the cell body to most neurons. Receive information and transmit impulses toward the cell body. (hot stove/step on a nail)
Cell Body of Nucleus Cell Body: Contains nucleus, control center of the cell. Regulates production of protein within the cell. Neurons – limited ability to repair damaged cells. (Pat’s story)
Axons Long tubelike structure attached to a neuron Transmits impulses away from cell body + toward another neuron, muscle cell or gland.
Spinal Cord Long column of nerve tissue about as thick as your index finger. Generally speaking – 18” long (c shaped) Vertebra - bones that make up back (6 C) Connective tissue- spinal meninge – help protect spinal cord.
Brain Cerebrum: largest and most complex part of the brain. Billions of neurons– conscious thought, learning, memory ( long + short) Brain cells – do not reproduce
Left Hemisphere Right side of the body Language Thinking Reasoning Analyzing
Right Hemisphere Music Talents ( singing/ playing instruments) Art ( painting/ drawing) Spatial Relationships ( Maps/ Graphs)
4 Lobes of the Brain Frontal Lobe Parietal Lobe Occipital Lobe Temporal Lobe
Frontal Lobe All voluntary movements ( hand/eye coordination) Use of language – foreign languages.