Three oval canals in the inner ear that help to maintain balance. Structures on the papillae of the tongue that contain chemoreceptors that respond to chemicals dissolved in saliva. Membranous sac in the vestibule of the inner ear that contains receptors for the sense of balance. Bony chamber of the inner ear that contains the utricle and the saccule.
Aging can also play havoc on your five senses. Read on to learn how sight, hearingand even taste can deteriorate with age.
Squinting at documents to see the fine print? Do you need more light to see clearly? Each passing decade brings changes that weaken eyesight, including the slow loss of ability to focus on close objects or small print. Presbyopiathe most common reason why you and your peers need reading glasses, is characterized by decreasing ability to focus on nearby objects.
This condition typically shows up around age 40 but often develops for decades before that. Some of the age-related eye changes are obvious, while others go undetected until vision is limited in some way. For example, the tissues surrounding eyes lose their tone, and fat is lost, too, which results in droopy upper eyelids and the turning outward or inward of the lower lid.
Over the years, the iris, the colored part of your eyeball, loses flexibility. Your pupils -- the black holes in the iris that respond to light -- get smaller, and the lenses start to accumulate yellow substances, possibly as a result of exposure to sunlight.
These changes predispose you to glaucoma, the product of excessive pressure inside your eyeball, which can lead to vision loss and blindness. No one knows the cause of glaucoma, but it is more prevalent in older people, African-Americans, and in those with a family history of the disease.
Glaucoma is basically symptom-free, often until it is too late. Get tested every two years regardless of age if: Macular degeneration destroys sharp, central vision. Hearing and Aging Find yourself saying "what?
Hearing loss is one of the most common complaints of getting older, especially for men, who are more prone to hearing loss at any age.
Aging produces a progressive hearing loss at all frequencies, known as presbycusis. After age 55, your ability to detect changes in the pitch of sounds drops off dramatically, which can make your speech less understandable to others.
In addition, the walls of your ear canal thin out, and earwax production falters. You may even get arthritis in the joints that connect the bones found in the inner ear. Yet, no one knows for sure if these changes in hearing can be put down to the aging process.
Hair cells are part of the inner ear that help transmit impulses to a nerve that transfers them to your brain for processing.
Nerve damage, injury, exposure to loud noise, and certain medications can cause hair cell loss.
Aging and Taste You can thank your nose for your sense of taste, despite the thousands of taste buds populating your tongue: They can only detect a mere four out of thousands of possible flavors in foods. The tongue recognizes only sweet, salty, bitter, and sour tastes.
When you chew food and drink beverages, their aromas are released in your mouth.The Aging Special Senses TeNee DurrA&P 1 AP Carly Rossner05/21/ Glaucoma is a disease that causes damage to the major nerve of the eye called the optic nerve CITATION Fra13 \l (Lusby, ).
This part of the CNS carries visual information from the eye to the brain.
* Since July , the following lectures have been added in the preclinical curriculum where geriatrics content had been insufficient: normal and abnormal signs and symptoms of aging, special senses and aging, skin ulcers, falls, failure to thrive, dementia, nutrition, late adulthood, and introduction to geriatrics.
Nov 26, · Special Senses: Enhanced Spatial Awareness, Enhanced Perception, Enhanced Empathy, Bullet Time (x10 for 60 seconds), Awareness of Remaining Health & Endurance, Basic Danger Sense (Effective Torture Immunity), Immune to Effects of Aging, Hardy Digestive System, Enhanced Lifespan, Slowed Aging.
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