Textbook Question
Explain the effect of the following on metabolic rate: thyroxine levels, eating, body surface area, muscular exercise, emotional stress, starvation.
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Ch. 24 Nutrition, Metabolism, and Energy Balance
Hoehn, Haynes, Abbott12th EditionMarieb Human Anatomy & PhysiologyISBN: 9780138242732
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Table of contents
- Ch. 1 The Human Body: An Orientation25
- Ch. 2 Chemistry Comes Alive24
- Ch. 3 Cells: The Living Units24
- Ch. 4 Tissue: The Living Fabric19
- Ch. 5 The Integumentary System12
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton14
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System25
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue23
- Ch. 12 The Central Nervous System25
- Ch. 13 The Peripheral Nervous System and Reflex Activity30
- Ch. 14 The Autonomic Nervous System16
- Ch. 15 The Special Senses26
- Ch. 16 The Endocrine System26
- Ch. 17 Blood27
- Ch. 18 The Cardiovascular System: The Heart25
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues16
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses27
- Ch. 22 The Respiratory System21
- Ch. 23 The Digestive System31
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System26
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System24
- Ch. 28 Pregnancy and Human Development25
- Ch. 29 Heredity11
Hoehn, Haynes, Abbott12th EditionMarieb Human Anatomy & PhysiologyISBN: 9780138242732Not the one you use?Change textbook
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Hoehn, Haynes, Abbott 12th EditionCh. 24 Nutrition, Metabolism, and Energy BalanceProblem 27
Hoehn, Haynes, Abbott 12th EditionCh. 24 Nutrition, Metabolism, and Energy BalanceProblem 27Chapter 24, Problem 27
Gregor, a large, beefy man, came home from the doctor's office and complained to his wife that his blood tests 'were bad.' He told her that the doctor said he would have to give up some of his steaks and butter. He went on to mourn the fact that he would have to start eating more cottage cheese and olive oil instead. What kind of problem was revealed by his 'bad' blood tests? What do you think of his choice of food substitutes and why? What would you suggest?
Verified step by step guidance1
Step 1: Identify the likely problem indicated by 'bad' blood tests related to diet. Given Gregor's concern about giving up steaks and butter, the problem is probably related to elevated blood lipids, such as high cholesterol or triglycerides, which increase the risk of cardiovascular disease.
Step 2: Understand why steaks and butter might contribute to this problem. Both are high in saturated fats, which can raise LDL ("bad") cholesterol levels in the blood, leading to plaque buildup in arteries.
Step 3: Evaluate Gregor's proposed substitutes: cottage cheese and olive oil. Cottage cheese is lower in saturated fat but can still contain some fat depending on the type, while olive oil is rich in monounsaturated fats, which are heart-healthy and can help lower LDL cholesterol.
Step 4: Consider the overall dietary changes needed. Replacing saturated fats with unsaturated fats (like those in olive oil, nuts, and fish) is beneficial. Increasing fiber intake through fruits, vegetables, and whole grains also helps reduce cholesterol levels.
Step 5: Suggest a balanced approach including lean protein sources (such as poultry, fish, legumes), healthy fats (olive oil, nuts, avocados), and plenty of plant-based foods. Encourage moderation and consultation with a healthcare provider or dietitian for personalized advice.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Cholesterol and Lipid Profile
Cholesterol and lipid profile tests measure levels of fats in the blood, including LDL (bad cholesterol), HDL (good cholesterol), and triglycerides. High LDL and triglycerides or low HDL indicate increased risk for heart disease. These tests help diagnose conditions like hyperlipidemia, which often require dietary changes.
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Dietary Fats and Their Impact on Health
Different types of dietary fats affect blood cholesterol differently: saturated fats (found in steaks and butter) raise LDL cholesterol, while unsaturated fats (in olive oil) can improve cholesterol levels. Choosing healthier fats helps reduce cardiovascular risk, making food substitutions important in managing lipid disorders.
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Nutritional Recommendations for Managing High Cholesterol
Managing high cholesterol involves reducing saturated fat intake and increasing consumption of heart-healthy foods like fruits, vegetables, whole grains, and unsaturated fats. Cottage cheese is low in fat but may contain saturated fat depending on type; olive oil is a good substitute. Additional suggestions include increasing fiber and considering lean protein sources.
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Related Practice
Textbook Question
Compare and contrast mechanisms of heat loss with mechanisms of heat promotion, and explain how these mechanisms determine body temperature.
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Textbook Question
While attempting to sail solo from Los Angeles to Tahiti, Seth encountered a storm that marooned him on an uninhabited island. He was able, using his ingenuity and a pocket knife, to obtain plenty of fish to eat, and roots were plentiful. However, the island was barren of fruits and soon his gums began to bleed and he started to develop several infections. Analyze his problem.
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