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* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
The Sensory System I. ________________ Receptors - Sensory receptors found in the ________, visceral organs, muscles & joints. A. Skin 1. Sensory receptors receptive to _____________________________ a. ________________ corpuscle b. ________________ disc c. ________________ end bulb 2. Sensory receptors receptive to ______________________________ a. ________________ corpuscles b. ________________ endings 3. Sensory receptors receptive to ______________________________ a. ________________ nerve endings 1) More __________ receptors than __________ receptors B. _______________ Organs 1. Receptors attached to _________ organs found in body __________ a. Ex: heart, ______________, lungs, bladder 2. Nerves maintain ___________________ (constancy of conditions) a. Stretch receptors in _______________ b. Nerves detect oxygen levels in blood & _________ C. Muscle & Joints 1. _______________________ a. Sense position & ___________________ of limbs 1) Work with the _________________________ b. Found in joints, ligaments & __________________ c. Respond to ____________________, pressure & pain d. Ex: ___________________ reflex arc II. ______________ RECEPTORS - Receptors found in the mouth & nose (_________________________), eyes (____________________________), & ears (__________________________). A. Chemoreceptors 1. Sensitive to chemical substances in ___________ & ___________ a. Mouth 1) ___________________ buds on tongue a) Pockets of taste cells along the walls of _________________ (small elevations on the tongue) b) Regions - Bitter, ____________, salty & ____________ b. Nose 1) _______________ cells located at the top of the nasal cavity a) At least ______ different types of cells which pick up different ___________________ - Different aromas cause different combinations of cells to be used b) ______________ on cell collects aroma the sensory nerve attached to that cell takes the impulse to the olfactory bulb (cranial nerve #1) which takes it to the ________________ to be processed B. _________________________ 1. Nerves in the eyes which receive _________ & send impulses to the _________________ nerve (cranial nerve #2). It is then taken to the ___________________ lobe to be processed 2. The Eye a. __________________ Muscles - controlled by 3 pair of cranial nerves - #3,4 & 6 1) Superior rectus - rolls eye ____________________ Inferior rectus - rolls eye _____________________ 2) Lateral rectus - turns eye _____________________ Medial rectus - turns eye _____________________ 3) Superior _____________ - rotates eye _________________ Inferior _____________ - rotates eye__________________ b. Structures of the Eye 1) ________________ - white outer layer - for protection a) ____________ - transparent outer layer - refracts light 2) ________________ - middle layer - absorbs stray light a) __________________ - holds lens in place & controls its shape b) _____________ - regulates light entrance by controlling the size of the hole (______________) that light enters 3) _________________ - attached to ciliary body by ligaments refracts & focuses light a) Separates eye into 2 _______________: - Anterior cavity - contains _____________ humor - Posterior cavity - contains ____________ humor • Humors refract light 4) ____________ - inner layer - contains photoreceptors a) ___________________________ - depression in the macula lutea where vision is most acute - ____________ - receptors located primarily in FC that function in bright light to detect fine detail & __________________ • 3 kinds: blue, green, & ___________ • Color ___________________ b) _____________ - receptors of dim/faint light making _____________, gray, & white vision possible - They do detect _____________________ - They do _____________ detect color ___________________ VISION - Each eye sends information to _________ sides of the brain • The ________ half of each eye will send information to the _______ half of the cerebrum • The ________ half of each eye will send information to the _______ half of the cerebrum • The ____ halves then communicate to interpret the vision LENS ___________________________ - Looking into the __________________ • Ciliary muscle ________________ (moves __________ from lens) • Causing the ligaments to ________________ • Causing lens to ______________ (____________________) - Look _______________ - (more tiring) • Ciliary muscle _________________ (moves ______________ the lens) • Causing the ligaments to _________________ • Causing the lens to be _______________ VISUAL PROBLEMS? - Nearsighted (__________________) - can see ___________, not far (so far, no good) • Cause: Eyeball is too ____________ causing rays to focus in front of retina • Solution: Wear _____________________ lenses to diverge rays - Farsighted (__________________) - can see ____________, not near (so far, so good) • Cause: Eyeball is too ____________ causing rays to focus in behind retina • Solution: Wear convex lenses to converge rays C. ___________________________ 1. Function a. ______________________ (balance) b. ______________________ 2. ________________________ (Outer) Ear a. __________________ - external flap that funnels in sound b. ______________ canal - has small hairs & secretes ear wax to filter air 3. Middle Ear a. ___________________ membrane (eardrum)- amplifies sound waves b. ____________________ (Eustachian) tube 1) Equalizes internal pressure with atmospheric pressure a) Connected to ________________________ c. _______________________ 1) ______________ (hammer) - attached to tympanic membrane 2) ______________ (anvil) - middle ossicle 3) ______________ (stirrup) - moves in & out of the oval window 4. ___________________ Ear a. ___________________ canals - helps maintain ___________________ b. ___________________ - helps maintain ________________________ c. ___________________ - (snail shell) - for _______________________ 1) Contains the organ of _____________ which send impulses to cranial nerve VIII (________________________ nerve) which connects to the ___________________________ 5. Hear We Go - The Hearing Pathway a. Sound waves (like ripples across a pond) enter the auditory _________ b. Waves hit ________________ and vibrate the ____________________ c. The ossicles transmit the vibrations to the ______________ window 1) The vibrations have now been amplified _______x. d. The oval window vibrations create waves in the fluid of the ____________________ e. The waves move ______________ cells (organ of Corti) in the cochlea. f. The bending of the hair initiates nerve ______________________ 1) Impulse travels to the ___________ via the vestibulocochlear nerve (VIII) 2) From there it is taken to the ___________________ lobe of the cerebrum to be interpreted as sound