Look for the answers to the following questions with your study partners- simila
ID: 3474069 • Letter: L
Question
Look for the answers to the following questions with your study partners- similar questions (in multiple choice format) will appear on the first quiz. PL HAVE PAGES 3 AND 4 OUT OF ORDER EASE NOTE THAT LECTURE SLIDE PACKETS (after page 9, slides are numbered, so just ignore page numbers) 1. Identify four organs of the nervous system (one of these organs you will discover ONLY in a figure not a text slide.) 2. Which organs form the central division of the nervous system? 3. Which organs form the peripheral division of the nervous system? 4. Name the structures of the nervous system that can detect something- some change in the external or internal environment. 5. Do you think the structures you named for Question #4 are mostly located in the peripheral nervous system or in the central nervous system? 6. Define or describe a "stimulus"? Examine the parts of a neuron that are identified as A, B, C and D (you'll learn the names of these parts during the first lab exercise - or from your reading). 7. Which one of the four parts of a neuron is inside nerve, A, B, C or D? 8. Which one of the four parts of a neuron is inside the ganglion shown in the slide labeled 34? (see full page figure in color) 9. Which part of a neuron forms the neuromuscular junctions you see in the colored figure? (Do you recall neuromuscular junctions from SCB203 - Human Biology 1?) 10. What type of tissue is termed an "effector"? Note that the arrows in the colored figure (and its smaller versions) show direction of signal transmissionExplanation / Answer
1. The four organs of the nervous system are the brain, spinal cord, sensory organs and nerves. The sensory organs include eyes, ears, nose, skin and tongue.
2. The brain and the spinal cord form the central division of the nervous system.
3. The peripheral nervous system consists of 12 pairs of cranial nerves and 31 pairs of spinal nerves.
4. Receptors are part ofthe nervous system that detect changes in the external or internal environment.
5. Receptors are part of the peripheral nervous system.
6. Stimulus is an event that leads to a physiological response. It is a detectable change in the external or internal environment of an organism.
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