Special senses of sight, hearing, taste and smell are the communicating channels between the body and the world outside. The special senses objectives students will identify the different parts of the eye and understand their functions. If you continue browsing the site, you agree to the use of cookies on this website. Special senses visual system cranial nerve ii the eye is a specialized structure that keeps the rods and cones of the retina in a protected environment while allowing appropriately focused light to reach the retina. In medicine and anatomy, the special senses are the senses that have specialized organs devoted to them. Medical anatomy and physiology unit six nervous system special senses page 2 draft copy 5. The distinction between special and general senses is used to classify nerve fibers running to and from the central nervous system. Special senses are smell, sight, taste, smell, hearing, and equilibrium balance. Navigate to the nervous system area in the following pal 3. How about the bones of the axial skeleton 6 the heart. Ee368b image and video compression human visual perception no. Different animals digestive systems have differing anatomy and chemical.
Each of the quizzes includes 15 multiplechoice style questions. Human visual perception topics stanford university. The clinical anatomy of the cranial nerves written by joel a. Conscious awareness of incoming sensory information is called sensation. Sensory systems represent an integration of the functions of the pns and cns. Students will understand how the auditory system works.
Vision anatomy of the eye the eyes are located within the skull orbits, which provide protection for the eyes, as well as provide a place to anchor the soft tissues that support the functions of the eye. Stimulus that reaches the cerebral cortex of the brain results in a sensation of that stimulus. The distinction between special and general senses is used to classify nerve fibers running to and from the central nervous system information from special senses is carried in special somatic afferents and special visceral afferents. Students will explain colorblindness, astigmatism, and adaptation. We also acknowledge previous national science foundation support under grant numbers 1246120, 1525057. Special senses vision, hearing, taste slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Jun 23, 2019 the libretexts libraries are powered by mindtouch and are supported by the department of education open textbook pilot project, the uc davis office of the provost, the uc davis library, the california state university affordable learning solutions program, and merlot. They provide animals with vision, the ability to receive. Several accessory eye structures contribute to the formation of tears andor help lubricate the eyeball. Hearing the ear sightvision the eye smell the nose taste the tongue the special senses have specialized sensory receptors or nerve endings. The parasympathetic nervous system brings about dilation expansionof the pupil.
Name five accessory eye structures that contribute to the formation of tears andor aid in lubrication of the eyeball, and then name the major secretory product of each. Anatomy of the visual system exercise time allotment. Our visual system is capable of adapting to extreme changes in light intensity to allow us to see clearly. See appendix b for guide to multimedia resource distributors.
Senses and sense organs coral springs charter school. All senses are detected by sensory receptors, and after integration and processing being done in the central nervous system, motor nerves produce a response. From the primary visual cortex pvc, visual signals follow along serial and parallel pathways to higher visual areas, in the occipital, parietal and temporal cortex. Feb 17, 2016 special senses vision, hearing, taste slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
While looking straight ahead, nothing is seen in the far left visual field. In anatomy, there are four major senses which have specialised organs assocated with them. The right half of the visual field is projected to the left half of the retina of each eye. The special sensory receptors for sight and hearing are located in large, complex sensory organs the eyes and the ears. Visual pigment light transducin a g protein alltransretinal 11cis. The anatomy and physiology of animalsspecial senses worksheet. Sight or vision is the capability of the eye s to focus and detect images of visible light on photoreceptors in the retina of each eye that generates electrical nerve impulses for varying colors, hues, and brightness. An introduction to the unique nerves of the head, neck and special senses is an engaging and valuable primer on the biological function and. This lab focuses on the functional anatomy and physiology of each of the special sense organs, individually, but please keep in mind those sensory inputs in fact overlap. Your nervous system quickly adapts to stimuli that are painless and constant. Biol 347 general physiology lab the special senses objectives students will understand how the auditory system works. Vision is the special sense of sight that is based on the transduction of light stimuli. Corneal abrasion can be readily caused by surgical drapes, instruments and anaesthetic hardware. The quizzes below are about the anatomy of the special senses.
Human visual perception topics n visual acuity n weberfechner law n lateral inhibition and excitation n transfer functions of the color channels n spatial and temporal masking n eye movements bernd girod. The special senses are the senses that have specialized organs devoted to them. Special sense organs are formed early in embryonic development. For example, during sympathetic activation, we experience a heightened awareness of sensory information and hear sounds that would normally escape our notice. Describe what occurs during nerve impulse transmission. Learn vocabulary, terms, and more with flashcards, games, and other study tools. These nerve endings are present in the ears, eyes, nose and mouth.
Using the essentials of human anatomy and physiology eleventh edition textbook, by elaine marieb student will prepare a presentation. These organs process visual, auditory, olfactory and taste sensations respectively. Match the described accessory structures with their secretion by choosing answers from the key. General senses nociceptors involved in pin pricksensation, itching, tickling thermoreceptors respond to changes in temperature mechanoreceptors respond to physical distortion, contact, pressure on their plasmolemma chemoreceptors monitor chemical composition of body fluids respond to presence of specific chemicals. Special senses sensation and perception vision eye hearing ear equilibrium ear taste taste receptors smell olfactory system general senses skin hot, cold, pressure, pain muscles, joints, and tendons proprioceptors stretch receptors respond to stretch or compression.
They are the eye, the ear, the nose and the tongue. Human visual systems permit light reflected off distant objects to be. Describe the cellular makeup and arrangement of a taste bud. Mechanoreceptors pressure receptors, stretch receptors, and specialized mechanoreceptors involved. Part 8 in a 9 part lecture on special senses in a flipped human anatomy course taught by wendy riggs. The visual pathway to the occipital lobe of the brain consists most simply of a chain of five. Maternal infections during the first five or six weeks of pregnancy may cause visual abnormalities as well as sensorineural deafness in the developing child. Name five accessory eye structures that contribute to the formation of lacrimal. Do you know the bones of the skull 5 the axial skeleton. Oct 16, 2014 part 8 in a 9 part lecture on special senses in a flipped human anatomy course taught by wendy riggs. Adaptations for nocturnal vision in insect apposition eyes pdf phd. The general and special senses napa valley college. The sensory division of the peripheral nervous system gathers information about the bodys internal conditions and external environment.
Those for smell and taste are located in organs that function in other systems the nose in the respiratory system and the mouth in the digestive system. Chapter 15 the special senses warner pacific university. Special senses detect the sensations of taste, smell, hearing, equilibrium, and sight, only in special sense organs in the head region a phenomenon known as cephalization. A lesion in the visual area of the right cerebral cortex affects right lateral and left medial vision. These eyespots could only sense ambient brightness.
Sensory systems translate light, sound, temperature, and other aspects of the. Name five sites where receptors for taste are found, and circle the predominant site. Indicate which has antibacterial properties by circling the correct secretory product. These are the senses that have specific organs associated with them. Jun 30, 2016 the special senses university of california, san. The human anatomy and physiology course is designed to introduce students pursuing careers in the allied health field to the anatomy and physiology of the human body. Vitamin e is required in the diet to make the visual pigment found in the cells of the retina. The cranial nerves impact a broad range of normal motor and sensory functions ranging from smell and vision to balance.
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