QUESTIONS FOR MODEL
1. Which lobe of the brain is important for vision? Where is it located? The occipital lobe is important for vision and it’s located in the left cerebral hemisphere. 2. Which part of the brain is important for reasoning? Where is it located? The frontal lobe is important for reasoning and it’s located in the left cerebral hemisphere. 3. Describe three functions of the nervous system. the function of the nervous system is to send signals from one cell to others, or from one part of the body to others. The nervous system is susceptible to malfunction in a wide variety of ways, as a result of genetic defects, physical damage due to trauma or poison, infection, or simply aging 4. What is the approximate weight of an adult normal brain? What percentage of the total human body weight does the brain represent? The approximate weight of an adult normal brain is 3lbs and its 3% of the total human body weight. 5. Describe the three membranes known as meninges. Dura mater is a thick, outermost layer of the meninges surrounding and protecting the brain and spinal cord. Arachnoids membrane is the middle layer of the three membranes that surround the brain and spinal cord. Pia mater is a thin, delicate inner membrane of the meninges. 6. Describe the two types of cells the brain is made of. Neurons are nerve cells that transmit nerve signals to and from the brain at up to 200mph. gilial cells make up 90% of the brain’s cells. 7. Describe the four primary structures of a neuron. The cell body is the “control center”. Processes are the structures that extend away from the cell body. Signals from other neurons are received at the dendrites. Axon terminals are at the ends of axons and contain neurotransmitters. 8. Describe the amygdala and its function. The amygdalae are almond-shaped groups of nuclei located deep within the medial temporal lobes of the brain in complex vertebrates, including humans. Shown in research to perform a primary role in the...
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