BASIC BODY STRUCTURE & FUNCTION AGE COMPLICATES DISEASE BASIC BODY STRUCTURE & FUNCTION Chapter 7

SKIN FUNCTIONS: Regulates body temperature and fluid balance: protects from infection and injury CHANGES WITH AGE Gets Thin & Dry Slowed Healing Less Sweat Gray, Thin Hair Age Spots

Musculoskeletal System: Gives body structure (Bones, Joints, Muscles) Aging Changes Bone Loss Muscle Loss Wear and Tear Less Calcium

Less Air gets into lungs Respiratory System: Moves air in/out of lungs: mucus & cilia trap germs Aging Changes Lungs Less Elastic Muscles Weaken Less Air gets into lungs Get Tired Faster

Cardiovascular System: Transport Oxygen and Nutrients to Body Aging Changes Heart Weakens Vessels are Less Elastic Fewer Blood Cells Increased Blood Pressure

Nervous System: Brain & Spinal Cord Functions: Homeostasis, Thought, Memory Aging Changes Slowed Reaction Mild Memory Changes Increased Fall Risk Worse with Chronic Disease

Sensory System: Helps us sort out our environment safely Aging Changes Presbycusis All Senses Diminish Balance Presbyopia

THE ENDOCRINE SYSTEM: Produces hormones Decrease with Age Regulate Sleep Control Glands Metabolism Calcium for bones Manage stress Blood Glucose Reproduction

DIGESTIVE SYSTEM AGING CHANGES Difficulty Chewing & Swallowing Dental Problems Slowed Digestion Constipation

URINARY SYSTEM CHANGES WITH AGING LESS EFFICIENT WASTE REMOVAL DECREASED MUSCLE TONE ENLARGED PROSTATE INCREASED CHANCE OF UTI

MEN: URINATION CHANGES REPRODUCTIVE SYSTEM AGING CHANGES MEN: WEAK ERECTIONS MEN: URINATION CHANGES WOMEN: MENOPAUSE FACIAL HAIR HOARSE VOICE

CHAPTER 8 COMMON DISORDERS OSTEOPOROSIS Loss of bone Fractures FRACTURES Trauma Falls AMPUTATIONS Diabetes PVD PARKINSON’S DISEASE Dopamine Can’t control body movements ALS Muscles weaken Paralysis Death HEAD AND SPINAL INJURIES Memory problems Behavior change

Pressure Causes Lost Vision Deafness Blindness Glaucoma Cataracts Clouded Vision Pressure Causes Lost Vision Partial or Total Hearing Aides