The SA Node is the heart's normal pacemaker. When the SA Node depolarizes, electrical signal spreads through the atrial muscle causing contraction.
Explanation:
Inherent rhythmicity / automaticity - The property of the pacemaker cells of the heart to start electrical sequence of depolarization and repolarization.
SA Node or Sino-atrial Node generates the electrical signal.
The electrical signal passes through internodal pathways, atrial fibres, atrioventricular node (AV Node), the bundle of His, Purkinje fibres, right bundle branch, left bundle branch.
Systole - Contraction of cells when the electrical signal of depolarization reaches the contractile cells.
Diastole - Relaxation of cells when the electrical signal of repolarization reaches the myocardial cells.
Answer:
Phosphoric acid is a good substitute for muriatic acid and in most situations will clean surfaces just as well with less risk. Phosphoric acid is a main ingredient in many commercial grout and concrete cleaners that are readily available to consumers.
Explanation:
yes they can because it messes with their brain and the way of thinking.
Yes hormones helps u to control mood,growth and development so the answer is true
1. Correct answer choice is:
C. Flexibility.
Explanation:
Skilled professionals usually transcend in all six regions. As well as the conventional elements of health-related robustness, the term fitness can be divided down into skill elements. These are essential in achieving the further specialized features of several sports and incorporate speed, reaction time, agility, balance, coordination, and power.
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2. Correct answer choice is:
A. Physical agility.
Explanation:
The interpretation of health-related fitness includes training exercises that you do in classification to attempt to enhance your physical health and stay healthful, especially in the divisions of cardiovascular endurance, muscular strength, flexibility, muscular endurance, and body composition.
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3. Correct answer choice is:
A. Excellent team work.
Explanation:
When you are playing individual sports, there is no team to which can work with. So the factors which are critical during an individual sport are you physical fitness, your mental focus, and your skills. The more you are focused, the better you will perform. If you are out of focus, your skills are not going to help you by any means. So as a conclusion i would say that the combination of focus, skills and fitness can lead to better performance in individual sports.
