Question

QUESTION 32 0.5 points Save Answer Describe two normal age-related physical changes that can contribute to vertigo (or dizziness) in older age? TTT Arial 3 (12pt) TEE 5. Os Qix

Answer 1

Inner ear problems that cause dizziness (vertigo)

Your sense of balance depends on the combined input from the various parts of your sensory system. These include your:

• Eyes, which help you determine where your body is in space and how it's moving
• Sensory nerves, which send messages to your brain about body movements and positions
• Inner ear, which houses sensors that help detect gravity and back-and-forth motion

Vertigo is the false sense that your surroundings are spinning or moving. With inner ear disorders, your brain receives signals from the inner ear that aren't consistent with what your eyes and sensory nerves are receiving. Vertigo is what results as your brain works to sort out the confusion.

2. Circulation problems that cause dizziness You may feel dizzy, faint or off balance if your heart isn't pumping enough blood to your brain. Causes include:

• Drop in blood pressure. A dramatic drop in your systolic blood pressure — the higher number in your blood pressure reading — may result in brief lightheadedness or a feeling of faintness. It can occur after sitting up or standing too quickly. This condition is also called orthostatic hypotension.
• Poor blood circulation. Conditions such as cardiomyopathy, heart attack, heart arrhythmia and transient ischemic attack could cause dizziness. And a decrease in blood volume may cause inadequate blood flow to your brain or inner ear.