Cardiovascular System and Exercise Physiology Quiz
15 Questions
3 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

An increase in training can lead to an increase in heart mass by as much as 33% or .1% BW and an increase in chamber diameter & wall thickness, resulting in an increase in __________.

Cardiac Output

During training, there is an increase in stroke volume, with one study finding a 10% increase. This contributes to better thermoregulation and aids in the elimination of waste products. Stroke volume refers to the volume of blood pumped by the heart with each __________.

Heartbeat

Horses undergoing cardiovascular changes due to training show remarkable adaptations, such as a high ratio of heart weight to BW, large mass-specific CO, and high __________.

VO2max

Stroke Volume measures the amount of blood ejected by the ______ in one contraction

<p>heart</p> Signup and view all the answers

Mitochondria are responsible for producing energy through ______ respiration

<p>aerobic</p> Signup and view all the answers

Cardiac Output is the volume of blood pumped by the heart in one minute, calculated by multiplying heart rate by ______ volume

<p>stroke</p> Signup and view all the answers

Blood Pressure is the force of blood against the walls of the ______

<p>arteries</p> Signup and view all the answers

VO2max is the maximum amount of oxygen a horse can utilize during intense exercise, a measure of aerobic ______

<p>capacity</p> Signup and view all the answers

The faster the blood is pumped by the heart, the higher the horse's ______ will be

<p>VO2max</p> Signup and view all the answers

Stroke Volume (SV) is the volume of blood pumped out of the heart at each beat. At rest, SV ranges from 1.3-2.3 ml/kg BW. During exercise, SV ranges from 2.5-2.7 ml/kg BW. SV increases by up to 50% during exercise and further increases with ________.

<p>training</p> Signup and view all the answers

Cardiac Output (CO) is the amount of blood pumped by the heart per minute. CO is calculated as HR X SV. At rest, CO ranges from 25-45 l/min. During exercise, CO ranges from 240-300 l/min. If we standardize for body mass, horses have twice the CO as humans. The formula for CO is CO = HR X ________.

<p>SV</p> Signup and view all the answers

Blood Pressure (BP) is calculated as CO X peripheral resistance. At rest, BP is typically 120/80. During submaximal exercise, BP remains relatively stable. However, during maximal exercise, BP can increase to ________.

<p>200/120</p> Signup and view all the answers

Mean arterial BP tends to increase by approximately 70% during intense exercise. In contrast, the mean pulmonary artery pressure may increase by ________%.

<p>400</p> Signup and view all the answers

Vo2max (maximal O2 uptake) refers to the maximum rate at which the body can use oxygen during intense exercise. It is mainly influenced by the cardiovascular system and the number of ________.

<p>mitochondria</p> Signup and view all the answers

Horses with high aerobic capacity have very high Vo2max levels. Their Vo2max can increase by up to 35 times over resting rates, making them twice as efficient as human athletes who have a Vo2max of 70 ml/kg/min. This difference is due to horses' superior ________.

<p>aerobic capacity</p> Signup and view all the answers

More Like This

Left vs
20 questions

Left vs

HonorableCelebration avatar
HonorableCelebration
Heart Rate and Blood Flow Regulation
40 questions
Cardiovascular System During Exercise
22 questions
Use Quizgecko on...
Browser
Browser