as exercise becomes more strenuous, what happens to the amount of blood passing through the:?

Question

a) skeletal muscle
b) kidneys

Answer 1

a) It increases.
b) It decreases.

Answer 2

Dependant on whether we are referring to aerobic or anaerobic excercise...
either way you should see an increase the amount of blood passing through BOTH tissues because blood pressure increases and a)muscle in is need and b)kidneys are connected to a major artery

Answer 3

There is a point in everything in which the law of diminishing returns sets in. The blood vessels do not have unlimited capacity and during exercises, a point is always reached in which the blood vessels can only carry that specific amount of blood and no more.

Answer 4

With increasing strenuous exercise, the muscle demands more oxygen and metabolites such as glucose and hence more blood gets supplied to it. This is done through two mechanisms, firstly (initially) by increasing vasodilation (diameter of the blood vessels) and secondly by increasing the out put of blood from the heart (increase in heart beats -tachycardia). The blood flow through skin is also increased simultaneously through vasodilation to increase the dissipation of heat to the environment (heat exchange- thermoregulation). These two changes in blood flow dynamics (increased vasodilation and heart contractions) increase the circulation of blood to the peripheral regions of the body as well as to lungs (for the exchange of respiratory gases such as carbon dioxide and oxygen). To compensate the enhanced blood circulation to the peripheral regions, the visceral regions gets reduced blood supply. The flow of blood to organs such as kidney thus gets diminished, thereby reducing the urine formation. As contrast to this, during exposure to cold weather, the blood supply to peripheral regions (extremities) decreases and the blood supply in the core body (visceral) regions increases. This is for preventing heat loss to the environment and conserving heat within the core body areas. The resulting increase in the flow of blood to kidneys increases the urine formation too.

Answer 5

as exercise becomes more strenous, the muscle cells require more oxygen and glucose to convert into ATP (source of energy in a cell). when oxygen levels start to diminish in a certain area of the body, a signal is sent to the brain in return the brain sends a signal tot he heart and the heart starts to pump blood faster to that area. but the maximum amount of blood pressure to a certain area is limited and blood cannot be pumped faster than that. when this happens and the cell is still depleting its oxygen faster than it is receiving, the glucose starts to get converted into lactic acid instead of pyruvic acid. it is this lactic acid that makes us feel that tired kind of pain in our muscles.

the flow of blood thru the kidney never changes. only the amount of water and other salts reabsorbed by the kidney changes and hence u see different shades of urine depending upon how concentrated it is. this concentration depends upon the amount of water present in the blood and the amount of unrequired salts in the blood.

Answer 6

skeletal muscles=increases
kidneys=decrease

Answer 7

a/ increase
b/ decreases

Answer 8

it goes round and round
back & forth none stop

Answer 9

figure it out yourself. thats how you learn!