Muscles

Question 1

What type of muscle is responsible for bodily movement?

Answer 1

Skeletal muscles

Question 2

What is the function of the antagonist muscle?

Answer 2

It lengthens

Question 3

What is the function of the agonist muscle?

Answer 3

contracts

Question 4

What is the origin of a muscle?

Answer 4

the immovable end of the joint, and the point where the muscle attaches to the more stationery bone

Question 5

What type of muscle fibre is required for endurance activities?

Answer 5

Slow twitch (type 1)

Question 6

What is the main source of ATP during endurance activities?

Answer 6

cellular respiration

Question 7

what is the function of the sarcoplasmic reticulum?

Answer 7

It transports electrochemical substances involved in muscle activation

Question 8

Which part of the heart acts as the pacemaker?

Answer 8

Sinoatrial node (SA node)

Question 9

What is the formula for calculating cardiac output?

Answer 9

Heart Rate x Stroke Volume

Question 10

What is the function of the respiratory system?

Answer 10

To supply oxygen to the blood, To remove carbon dioxide from the blood, To regulate blood pH

Question 11

What is the function of the respiratory system?

Answer 11

To supply oxygen to the blood, To remove carbon dioxide from the blood, To regulate blood pH

Question 12

What is VO2max?

Answer 12

The maximum amount of oxygen that the body can consumed

Question 13

What factors contribute to a higher V02max?

Answer 13

Heredity and training, Age and sex, Body composition and tung capacity

Question 14

What is the purpose of breathing heavily during exercise?

Answer 14

To take in more oxygen,
To exhale more carbon dioxide, to regulate blood PH

Question 15

Which type of muscle contraction causes the angle between joints to decrease?

Answer 15

Concentric

Question 16

What is the main function of carbohydrates in the body?

Answer 16

To provide energy for cells, To build cell membranes, To store glucose in the muscles

Question 17

What is the role of ATP in muscle contraction?

Answer 17

It provides energy for muscle contraction

Question 18

What is the purpose of the pericardium?

Answer 18

To protect the heart

Question 19

What is the function of arterioles in the cardiovascular system?

Answer 19

To regulate blood pressure and flow

Question 20

What is the sliding filament theory?

Answer 20

actin filaments moving closer together and sarcomere shortening

Question 21

What is the purpose of the AV node in the heart?

Answer 21

To delay ventricular contraction and allow atria to complete contraction

Question 22

What is the purpose of the ECG in measuring heart activity?

Answer 22

To provide a graphical representation of the electrical sequence of heart contraction

Question 23

Which type of muscle tissue is responsible for involuntary movements, such as contraction of the stomach and intestines?

Answer 23

Smooth muscles

Question 24

What is the insertion of a muscle?

Answer 24

The movable end of the joint, The point where the muscle attaches to the bone that is moved most

Question 25

Which type of muscle fiber is responsible for explosive, powerful movements?

Answer 25

Type 2b (Fast Glycolytic)

Question 26

What is the main source of ATP during high-intensity, short-duration activities?

Answer 26

ATP-PC system

Question 27

Which part of the heart receives oxygenated blood from the lungs?

Answer 27

Left atrium

Question 28

What is the function of the alveols in the respiratory system?

Answer 28

To regulate blood pH, To enable-gas exchange between air and blood

Question 29

What protein puts out the crossbridges to help contraction happen?

Answer 29

Myosin

Question 30

What is the role of fats in the body during long distance exercise?

Answer 30

To provide energy for cells

Question 31

What is the purpose of the mitral/bicupsid valve in the heart?

Answer 31

To prevent backflow of blood from the left ventricle to the left atrium

Question 32

What is the difference between aerobic and anaerobic exercise?

Answer 32

Aerobic exercise requires oxygen, while anaerobic exercise does not

Question 33

What is the purpose of the SA node in the heart?

Answer 33

To initiate the electrical signals for heart contraction

Question 34

Which type of muscle fiber is responsible for explosive, powerful movements?

Answer 34

Type 2b (Fast Glycolytic)

Question 35

What is the main source of ATP during high-intensity, short-duration (0-15 sec) activities?

Answer 35

ATP-PC system

Question 36

Which part of the heart receives oxygenated blood from the lungs?

Answer 36

Left atrium

Question 37

What metabolic pathway has lactic acid as a byproduct during ATP resynthesis?

Answer 37

Glycolysis

Question 38

What is a sarcomere?

Answer 38

the contractile unit in a muscle fibre