Exam 25: Integrative Physiology III: Exercise

Based on what you learned in the chapter on control of blood flow and pressure,what must happen to blood flow to meet the metabolic demands of exercising skeletal muscle? How is this accomplished? What is the predicted effect of this change on systemic blood pressure during exercise? What are the changes in heart function during exercise,and what effects should those changes have on systemic blood pressure? What actually happens to systemic blood pressure during exercise? Explain the apparent contradictions.

Fat stores are used for energy only after muscles have depleted their carbohydrate energy stores.

Match the response to the description. -relative depression of immune system with change from moderate to strenuous exercise

What two effects does sympathetic stimulation have on the heart during exercise?

During exercise,the most significant factor affecting the pH of body tissues is the production of

During increased exercise,

With endurance training,muscle mitochondria increase in

Excess postexercise oxygen consumption serves all of the following purposes EXCEPT

During mild to moderate exercise,arterial pH,P_O2,and P_CO2 are

The rise in body temperature triggers two thermoregulatory mechanisms: ________ and ________.

During exercise,sweating helps lose heat from the body through the process of

The advantage of anaerobic metabolism is

EPOC is

List and briefly discuss advantages or enhancements to metabolism brought about through aerobic exercise.

The process of creating glucose out of non-carbohydrate precursors to make more energy for exercise is referred to as

The largest metabolic reserves for the average adult are stored as

The substance in muscle fiber cytoplasm that directly powers muscle contraction is

Daniella is a dancer trying to get into the New York City Ballet.She knows that it is very competitive,so she is practicing several hours a day.She also knows that ballerinas need to be very thin,so she is restricting her diet to 600 calories a day and only eats fruits and vegetables.She continues her workout and dietary routine for several months and on the day of her audition she feels very weak.She ends up passing out during her audition and as the athletic trainer and physician are evaluating Daniella,they notice that she has several bruises and frequent muscle spasms.Why is Daniella having all of these problems?

Benefits of regular exercise include all of the following,EXCEPT

Cortisol,the catecholamines,and growth hormone do all of the following,EXCEPT