Discuss why the short term secretion of adrenaline important for athletes running a 100m race

Q: The endplate potential decreases with distance because

A: The end plate potential is a potential that propagates to the neighbouring patch of muscle fibre…

Q: Which of both skeletal and smooth muscle is trig-gered by an increase in cytosolic Ca2+.

A: Muscle is that the tissue of the body that primarily functions as a supply of power. ... Muscle that…

Q: Table1.Contractionofsmoothmusclebythreeagonists Contractileresponse(mm) Log[agonist] (M) -10 -9 -8.5…

A: Here, contraction of smooth muscle using increasing concentration of three agonists is given. The…

Q: Contrast the role of neural adaptations with hypertrophy in the increase in strength that occurs…

A: Hypertrophy refers to the increase and growth of muscle cell size achieved through exercise. Extreme…

Q: During strenous exercise, CO markedly increases. How much does it crease by, and where is flow…

A: During strenuous exercise, cardiac output (CO) can increase up to five or six times compared to…

Q: Explain in detail why the neurotransmitter acetylcholine has different effects in skeletal vs.…

A: Acetylcholine lie outside the CNS which transmits synapsis and at synapse, there are released some…

Q: Heart rate during exercise at 75% maximal oxygen consumption is determined primarily by     the…

A: Heart is the pumping organ in the body. It is responsible for pumping the blood to various parts of…

Q: Using the tension graph, explain why skeletal muscle can exhibit tetany (sustained contraction) but…

A: Physiologic tetanus refers to sustained muscle contraction, which occurs due to the generation of…

Q: Explain the action and significance of the Ca 2+ pump and the Na+/K

A: Primary transporters are protein molecules that acts as a transporter of small ions such as Na+, K+,…

Q: how the calcium be the link between excitation and concentration.

A: Excitation–contraction is the physiological process of converting electrical input to a mechanical…

Q: BFR Is an example of "gym science" that has no merit as a training tool was devised at Ball State…

A: BFR stands for blood flow restriction  It decreases the blood outflow in veins ( total cut off ) And…

Q: Some endocrine tumors secrete a hormone that leads to elevation of extracellular fluid Ca21…

A: Endocrine tumors can be described as the tumor which affects the organs which secrete chemical…

Q: What stores CA+ in the muscle cells and what stores CA+ as a reservoir in the human body?

A: Numerous ion channel proteins pumps are located within the SR membrane and it helps to pump calcium…

Q: An action potential causes depolarization of the T tubule membrane. True or False True False

A: Introduction: An action potential is a series of fast voltage shifts across a membrane. At any one…

Q: Muscle hypertrophy training is catalyzed by which of the following?  Mechanical tension, high reps,…

A: Introduction: Muscle hypertrophy happens when net protein balance is favourable over time and muscle…

Q: A skeletal muscle with slower ATPase activity can complete more crossbridge cycles per second.…

A: Introduction: Molecular mechanism where the myofilaments of actin and myosin slides over one another…

Q: Describe the changes that occur in skeletal muscle as a result of endurance training. Include a…

A: Endurance training is sustained physical exercise to improve the endurance of an individual.…

Q: Accumulation of which of the following substances in muscle cells is the cause of stiffness and…

A: Muscle fatigue refers to the decline in muscle force generated over sustained periods of activity or…

Q: If calcium cannot be returned to the SR quickly after a muscle contraction, how would this affect…

A: The cardiovascular system is sometimes called a blood-vascular system. In sustaining homeostasis,…

Q: How does this physiological mechanism explain the changes observed and noted in the increase of…

A: During any form of physical activity or running , the body's demand for oxygen increases to support…

Q: Define what the NMJ is and why it's important for muscle contraction. Explain in short the process…

A: Muscle contraction refers to the activation of muscle fibers that results in the generation of…

Q: Explain what is meant by the term excitation-contraction coupling.

A: Contraction can be defined as the process in which there is a shortening of the muscles and there is…

Q: Muscle fatigue occurs because of..  A relative deficit of ATP  Excessive accumulation of lactic…

A: In fermentation the incomplete oxidation of Glucose is achieved under anaerobic conditions.

Q: Contraction of both skeletal and smooth muscle is triggered by an increase in cytosolic Ca2+.…

A: Muscle tissue are the type of tissue which undergo continuous relaxation as well as contraction that…

Q: sodium potassium pumps are the driving force behind what

A: Introduction The "sodium pump" is another term for the sodium-potassium pump, which is a type of…

Q: Explain why athletes who excel at short sprints probably havefewer slow oxidative fibers in their…

A: The skeletal muscle fibers are comprised of three different types of muscle fibers. These help in…

Q: caffeine is also diuretic, which means it increases the movement of water through the kidneys into…

A: Nutritional supplementation is a common practice amongst athletes, with the most widely used…

Q: What is the effect of nitric oxide and ANP have on smooth muscle of muscular

A: Nitric oxide (NO) act as a vasodilator so it relaxes the smooth muscles. NO is a paracrine signaling…

Q: Question #4 The graph on the left shows data for an experiment in which isolated mitochondria were…

A: The process of oxidative phosphorylation, which mitochondria use to produce energy, is essential to…

Q: State the three important roles of the Na+ -K+ pump. (One sentence each.)

A: Introduction: When two electrodes are placed on a cell's surface and are connected through a…

Q: Create a cool down for soccer, Remember to cover the basic ground rules:About 10 minutes in…

A: Cooling down after a game is as important as warm up before the game. Cooling down increases fitness…

Q: When a person is in a state of heat exhaustion, trying to reduce body temperature is a priority over…

A: Mean arterial pressure(MAP): It is the average blood pressure during one cardiac cycle. The MAP can…

Q: Discuss why slow oxidative fibers have more capillaries and mitochondria than fast glycolytic…

A: Introduction: Skeletal muscle, also called volunteer muscles, in vertebrates, which are the most…

Q: Cardiac muscle is described as being under involuntary control. Why is it that some individuals can…

A: An involuntary muscle is one that contracts and relaxes without our conscious will. Heart muscles or…