Chemical Senses OLFACTION The sense of smell. Begins with the detection of molecules suspended in the air Olfactory stimuli Must be soluble in fat Taken through the nostrils and circulated within the nasal cavities connected to the nostrils. Olfactory epithelium Thin sheet of cells which contain neural receptors for olfaction Contains olfactory receptor cells and glia-type support cells that produce mucus Also contains basal cells which give rise to new receptors when needed Olfactory
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SENSE ORGANS RECEPTORS (Sense organs) * Transducers of specific forms of kinetic energy * Change mechanical‚ electrical‚ thermal‚ chemical‚ or radiant energy into nerve impulses in sensory neurons Two major categories: * GENERAL RECEPTORS * Often exist as individual cells or receptor units * Widely distributed throughout the body * Most numerous such as: * touch‚ temperature‚ and pain: and * to initiate various reflexes necessary for maintaining
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quintessential of the notion that an individual can enrich a community or group through challenging its normalcy. He is unique in the sense that he chooses to detach himself from both the forest and court. * Essentially‚ he acts on his potential to challenge social normalcy and the status quo by rendering himself devoid of any affiliation to these communities‚ instead belonging to a ‘melancholy of my own.’ In doing so‚ he is minutely fastidious in the way in which he examines and scrutinizes the human
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To belong or not to belong is the feeling of being excluded or included by a group‚ person‚ place or community. I believe to belong on many levels you must first feel you are entitled to belong. This may come about through your personal experiences and how you tuley feel about yourself and your self worth. In the illustrated story ’The Sneetches’ illustrated and written by Dr. Suess he demonstrates individuals within a group desperately seeking approval of another group they are made to believe
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movie production about a person with blindness‚ what type of perceptions would you want to make sure are portrayed in your movie? What myths could you debunk? What stereotypes would you want to make sure to avoid? The importance of using their other senses to “see” what the world looks like. Those of us who can see are not aware of the importance of smell‚ and touch. We see with our eyes‚ while blind people see with their hands‚ ears‚ nose‚ etc. Blind people are not always unable to see everything
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before we learned how to use language‚ reason‚ or emotions to further our knowledge‚ we used our senses. As toddlers we used our sight‚ smell‚ taste‚ touch‚ and hearing to make sense of our surroundings. The evolution of knowledge is mostly because of sense perception. The most primitive versions of ourselves‚ for example the cavemen‚ heavily survived off of sense perception alone. They knew by their senses that certain plants‚ animals‚ weather‚ etc. separated life and death. Now scientists and inventors
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1. Sensation There are different modalities (forms) of sensation Sound‚ pain‚ pressure‚ touch‚ stretch‚ vibration‚ heat‚ cold‚ vision‚ taste‚ smell‚ proprioreception‚ hearing‚ equilibrium‚ gustation‚ etc. Each modality has a specific receptor Each modality is conducted by sensory (afferent) neurons to the CNS and is the result of different neural pathways and synaptic connections 2. Sensory Pathways 3. Law of Specific Nerve Energy Each sensory neuron carries information about
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Sense of Touch/Feeling The Skin Senses Consider the skin has remarkable versatility: It protects us against surface injury‚ holds in body fluids‚ and helps regulate body temperature. The skin also contains nerve endings that‚ when stimulated‚ produce sensations of touch‚ pain‚ warmth and cold. Like several other senses‚ these skin senses are connected to the somatosensory cortex located in the brain’s parietal lobes. The Somatosensory Cortex The skin’s sensitivity
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The Auditory Sense or Organ of Hearing The Ear is divided into 3parts: External or outer ear Auricle (pinna) Made of elastic cartilage. Covered by skin placed on the opposite side of the head. External auditory canal Also called the “ear canal” auditory meatus: either of the passages in the outer ear from the auricle to the tympanic membrane. Tympanic membrane The tympanic membrane is a vital feature of the human ear‚ and is more commonly known as the eardrum. The tympanic membrane’s
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Belonging Essay 2011 HSC Question Question 3 (15 marks) Explore how perceptions of belonging and not belonging can be influenced by connections to places. In your response‚ refer to your prescribed text and at least ONE other related text of your own choosing. The prescribed texts are listed on the next page. Word Length: 1200 words A sense of belonging is an essential part of the human condition; it is a desire shared by all. Belonging refers to the ability of an individual to fit in a specified place
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