auditory and visual reflexes. CN nerves III and IV originate here. Pons-contains motor and sensory pathways. CN nerves V through VIII connect to the brain in the pons. Medulla Oblongata-contains motor fibers from the brain to the spinal cord and sensory fibers from the spinal cord to the brain. CN nerves IX through XII connect to the brain in the medulla. Cerebellum-largely responsible for coordination of movement. It also controls fine movement‚ balance‚ position (postural) sense or proprioception (awareness
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tree: dendrite – branched nerve process that serves as the receptor surface of a neuron. Funi-‚ cord‚ rope: funilicus – funiculi of spinal cord or bundle of nerve fibers. Gangli-‚ knot: ganglia – deliver information to the body -lemm‚ rind or peel: neurilemma – sheath that surrounds the myelin of a nerve cell process. Mening-‚ meninges - The three fibrous membranes that surround the brain and spinal cord to protect the central nervous system. Moto-‚ moving: motor neuron – neuron that stimulates
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terms in the activity are listed here‚ but you only need to provide descriptions for those you used. Term | Description | Central nervous system | The central nervous system has two divisions; the brain and the spinal cord. The brain is located in the skull and the spinal cord is located in the spine. | Cell body | The cell body is the metabolic center of the neuron. | Peripheral nervous system | The division located outside the skull and spine. | Dendrites | Receives most of the synaptic
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115 Synapse : The point of contact between the terminal branches of axon of one neuron with the dendrite of another neuron is called synapse. Reflex Action A quick‚ sudden‚ immediate response of the body to the certain stimuli that involves Spinal cord. eg. (not brain)
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Heroin is a highly addictive analgesic drug. Heroin‚ which is a popular choice of drug in America‚ is not a new drug that magically popped up in the late 1960’s. In the mid 1800’s opium was a popular drug. Opium was brought to the country by Chinese immigrants who came here to work on railroads. In the old west alcoholism as a big problem and opium was promoted as a cure for alcoholism. Before it was illegal opium was developed as a pain killer in 1810. “It was considered a wonder drug because it
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the reflex arc: 7) Integration center. 8) Sensory neuron. 9) Effector. 10) Motor neuron. 11) Receptor. Match the following: A) Abducens B) Vestibulocochlear C) Olfactory D) Vagus E) Accessory 12) Formed by the union of a cranial and a spinal root. 13) Receptors located in epithelium of the nasal cavity. 14) Serves the senses of hearing and equilibrium. 15) Helps to regulate blood pressure and digestion. 16) Turns the eyeball laterally. Match the following reflexes to their function:
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ganglia outside of the brain and spinal cord. These receptor cells give out their cautionary indications along the peripheral nerve fibers‚ which then transmit the signal to the dorsal horn of the spinal cord‚ which is the main highway for transmitting signals to the brain. A dorsal horn is “a longitudinal subdivision of gray matter in the dorsal part of each lateral half of the spinal cord that receives terminals from some afferent fibers if the dorsal roots of the spinal nerves‚” (Merriam-Webster Medical
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junction to the spinal cord‚ the central nervous system is able to take its role as the processing center for the nervous system. The central nervous system receives and sends information to the peripheral nervous system. Since the nervous system has such an impact on the way we feel and behave‚ it has a large contribution to the quality of our lives. This was expressed both in the textbook as well as the documentary when discussing psychological disorders due to chemical imbalances in the brain
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give a general function for each system. 4. Name the six life processes that distinguish living from non-living things. 5. Specify the five environmental needs required for life. 6. Define the term homeostasis‚ and explain how a homeostatic mechanism is regulated (i.e. negative feedback) by using an example we discussed in class. 7. Demonstrate what is meant by "anatomical position". 8. Define various directional terms (i.e. superior‚ inferior‚ etc.)‚ and compare different
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description of the three slides (Neuron‚ Spinal Cord Smear and C.S of Myelinated Nerve Fibers) as though you were explaining it to someone who cannot see the slide. Neuron- There is a reddish rounded shape with lighter thin looking branches these are probably the axon terminals or dendrites. I am thinking this is a multipolor neuron. The reddish rounded figure is the nucleus. There are smaller darker dot‚ which I am guessing could be the axons. Spinal Cord Smear- A large purple figure with bundles
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