Portage Learning Anatomy & Physiology 2: Lab 2 Exam Senses 100% Pass

Portage Learning Anatomy & Physiology 2: Lab 2 Exam Senses 100% Pass Describe how sensory information helps to sustain life. We need to sense pain. If sensory input is missing, we can't react and remove ourselves from a harmful stimulus. These sense organs detect light. A. Thermoreceptors B. Correct! Photoreceptors C. Chemoreceptors D. Nociceptors Name the structure above and state its division in the ear. (The structure is highlighted in blue and indicated by the arrow.) Auricle/Pinna; external What is true concerning the structures (highlighted in blue) above? A. It is called the semicircular canal. B. It contains the anterior, posterior and lateral canals. C. Correct! It contains the Scala tympani. D. It detects change in motion. The image above is a cross-section of the: A. Cornea B. Correct! Cochlea C. Semicircular canals D. Saccule This secretes a lipid substance that helps to keep tears contained inside the eye: A. Nasolacrimal duct B. Gland of Zeis C. Correct! Meibomian Gland D. Lacrimal canaliculi Obstruction of the lacrimal apparatus results in: A. Dry Eye B. Correct! Watery eye C. Conjunctivitis D. A stye Name and discuss the purpose of the structure above (indicated by the arrow). The lacrimal gland is responsible for producing tears. Tears are necessary to help protect and clean the eye from foreign debris as well as keeping the eye moist. Match the term with its one best description, below. Presbyopia Lens hardens Myopia Eyeball is too long Astigmatism Deviated cornea Glaucoma Blockage in Canal of Schlemm Is the red pin (above) in the anterior or posterior aspect of the eye? Explain how you know. anterior: the red pin is marking the cornea which is the most anterior part of the eye. Name the structure above (indicated by the arrow) and discuss its purpose. Lens-Accommodates for far or near vision