Teachers and Examiners (CBSESkillEduction) collaborated to create the Physiology and Injuries in Sports Class 12 Questions and Answers. All the important Information are taken from the NCERT Textbook Physical Education (048) class 12.
Physiology and Injuries in Sports Class 12 Questions and Answers
1. system provide energy during 5000m race.
a. ATP CP system
b. Anaerobic System
c. Aerobic System
d. Endurance System
Show Answer ⟶Hide Answer ⟵c. Aerobic System
2. Slow twist fibres are of colour.
a. Red
b. White
c. Black
d. Blue
Show Answer ⟶Hide Answer ⟵a. Red
3. Vo2 max is related to __________________
a. Muscular system
b. Respiratory system
c. Cardiovascular system
d. Energy production system
Show Answer ⟶Hide Answer ⟵b. Respiratory system
4. Which is NOT a property of muscles?
a. Contractility
b. Excitability
c. Extensibility
d. Durability
Show Answer ⟶Hide Answer ⟵d. Durability
Physiology and Injuries in Sports Class 12 Questions and Answers
5. It is a condition typically defined wherein an individual has a resting heart rate of under 60 beats per minute (BPM) in adults.
a. Bradycardia
b. Hypertrophy
c. Alveoli
d. Perfusion
Show Answer ⟶Hide Answer ⟵a. Bradycardia
6. It is the amount of blood pumped out by each side of the heart (actually each ventricle) in 1 minute.
a. Blood pressure
b. Cardiac output
c. Blood volume
d. Anaemia
Show Answer ⟶Hide Answer ⟵b. Cardiac output
7. The resting Cardiac output is approximately.
a. 10.0 lt.
b. 1.0 lt.
c. 5.0 lt.
d. 15.0 lt.
Show Answer ⟶Hide Answer ⟵c. 5.0 lt.
8. The volume of blood pumped during one beat (contraction) is called,
a. Blood flow
b. Stroke volume
c. Veins and arteries
d. Capillaries
Show Answer ⟶Hide Answer ⟵b. Stroke volume
9. Process of converting glucose into energy without oxyzen:
a. Anaerobic respiration
b. Aerobic respiration
c. Vital capacity
d. Stroke Volume
Show Answer ⟶Hide Answer ⟵b. Aerobic respiration
Physiology and Injuries in Sports Class 12 Questions and Answers
10. Cardiac hypertrophy is
a. plateauing of heart rate due to maximal exercise intensity
b. enlargement of heart due to chronic endurance training
c. lowering of heart rate due to physical training
d. increase in ventricular volume because of exercise
Show Answer ⟶Hide Answer ⟵d. increase in ventricular volume because of exercise
11. What is the normal respiratory rate for an adult?
a. 10 to 12 breath per minute
b. 40 to 60 breath per minute
c. 12 to 20 breath per minute
d. 30 to 40 breath per minute
Show Answer ⟶Hide Answer ⟵c. 12 to 20 breath per minute
12. The amount of breath per minute increases during exercise to:
a. 20 breath per minute
b. 40 breath per minute
c. 30 breath per minute
d. 10 breath per minute
Show Answer ⟶Hide Answer ⟵b. 40 breath per minute
13. Which is not a long term effects of exercise on muscular system?
a. Hypertrophy of muscle
b. Increase metabolism
c. Increase Myoglobin
d. Increase blood supply
Show Answer ⟶Hide Answer ⟵d. Increase blood supply
14. Which is not a Short term effects of exercise on muscular system?
a. Accumulation of Lactate
b. Micro-tears in muscle fibers
c. Increase muscle temperature
d. Increase in lactate acid tolerance
Show Answer ⟶Hide Answer ⟵ca. Accumulation of Lactate
Physiology and Injuries in Sports Class 12 Questions and Answers
15. Physical activity helps to increase ________________________.
a. Size of muscle
b. Size of bone
c. Size of brain
d. Size of liver
Show Answer ⟶Hide Answer ⟵a. Size of muscle
16. Increase in glycogen stored in muscle is an effect of __________
a. Aerobic Training
b. Anaerobic Training
c. Cross Training
d. Above all
Show Answer ⟶Hide Answer ⟵a. Aerobic Training
17. Men and women usually attain their highest strength levels between the ages of
a. 1 and 2
b. 5 and 7
c. 7 and 11
d. 20 and 40
Show Answer ⟶Hide Answer ⟵d. 20 and 40
18. It is a measure of the amount of minerals (mostly calcium and phosphorous) contained in a certain volume of bone,
a. Body composition
b. Bone Mass
c. Pulmonary function
d. Neuron
Show Answer ⟶Hide Answer ⟵b. Bone Mass
19. The chemical substances synthesized by specific host glands, secreted into the blood, and carried throughout the body are called
a. hormones
b. sugar
c. electrolytes
d. capillaries
Show Answer ⟶Hide Answer ⟵a. hormones
Physiology and Injuries in Sports Class 12 Questions and Answers
20. It is a disease in which bone weakening increases the risk of a broken bone,
a. Measles
b. Osteoporosis
c. Atherosclerosis
d. Beriberi
Show Answer ⟶Hide Answer ⟵b. Osteoporosis
21. Decrease in size of a body part, cell, organ, or other tissue is called
a. Myopia
b. Atrophy
c. Cardiac arrest
d. Cardiac cycle
Show Answer ⟶Hide Answer ⟵b. Atrophy
22. A sprain is an injury to:
a. Muscle
b. Tendon
c. Ligament
d. Bone
Show Answer ⟶Hide Answer ⟵c. Ligament
23. A bone fracture is an example of injury to
a. Skin
b. Soft tissue
c. Hard tissue
d. Eyes
Show Answer ⟶Hide Answer ⟵c. Hard tissue
24. A soft tissue injury damages,
a. Ligaments and tendons
b. Bone
c. Cartilage and muscles
d. Carpals
Show Answer ⟶Hide Answer ⟵a. Ligaments and tendons
Physiology and Injuries in Sports Class 12 Questions and Answers
25. A fracture in which the bone breaks diagonally,
a. Greenstick
b. Impacted
c. Oblique
d. Transverse
Show Answer ⟶Hide Answer ⟵c. Oblique
26. First Aid is the
a. completing secondary survey
b. first help given to the casualty
c. accessing a victim’s vital sign
d. electrolyte imbalane
Show Answer ⟶Hide Answer ⟵a. completing secondary survey
27. Dressing and band ages are used to
a. increase the victim’s pain.
b. increases internal bleeding.
c. help control bleeding and prevent infection.
d. Stitch up a deep wound
Show Answer ⟶Hide Answer ⟵c. help control bleeding and prevent infection.
28. What is the best way to stop external blood loss?
a. apply direct pressure over the wound
b. take the patient to hospital
c. wash the wound with water.
d. apply cream on wound
Show Answer ⟶Hide Answer ⟵a. apply direct pressure over the wound
29. A burn should be immersed or placed under cold water for at least?
a. 5 min
b. 10 min
c. 15 min
d. 20 min
Show Answer ⟶Hide Answer ⟵d. 20 min
Physiology and Injuries in Sports Class 12 Questions and Answers
30. The key guiding aims and objectives of first aid are,
a. present, promote injury, preserve water
b. present further injury, promote recovery, preserve life
c. preserve recovery, preserve minerals, preserve environment
d. pull ups, push-ups, power lifting
Show Answer ⟶Hide Answer ⟵b. present further injury, promote recovery, preserve life
31. What is R.I.C.E. treatment?
a. Rest, Ice, Crutches, Elevation
b. Rest, Ice, Compression, Elevation
c. Rest, Ibuprofen, Crutches, Exercise
d. Recovery, Ice, Compression, Exercise
Show Answer ⟶Hide Answer ⟵b. Rest, Ice, Compression, Elevation
32. Point out physiological factor for strength.
Answer –
a. Muscle composition: Fast-twitch and slow-twitch fibres are the two types of fibres found in muscles.
b. Muscle size: A person’s strength is influenced by the size of their muscles.
c. Body weight: Strength and body weight have a good relationship.
33. Briefly describe the energy production system in our body.
Answer – The specific processes by which your body produces and utilises energy are referred to as energy systems. You produce energy via three different systems, like phosphagen (ATP-PC), glycolytic, and oxidative. In all types of physical exercise, all three energy systems are active.
34. Explain different properties of muscles.
Answer – There are four key characteristics of muscle tissue having the capacity to react to signals, having the capacity to contract, A muscle’s extensibility is its capacity to extend without breaking, Elasticity is the capacity to regain its original shape.
Physiology and Injuries in Sports Class 12 Questions and Answers
35. Write a few points on cardiorespiratory factors determining fitness.
Answer – Age, gender, genetics, body composition, and level of fitness are all factors that affect a person’s cardiorespiratory fitness. The body is compelled to give the muscles more oxygen during aerobic exercise.
36. Explain Physiological factors determining fitness.
Answer – The size of a person’s muscles affects their strength. The size of the muscle can be enhanced using various strength-training techniques as bigger and bigger muscles provide more force.
37. What is Stroke Volume?
Answer – The amount of blood that is pumped out of the left ventricle of the heart with each systolic cardiac contraction is referred to as the stroke volume.
38. What is residual volume?
Answer – The amount of air still in the lungs following a maximally powerful expiration is known as residual volume. In other words, it is the amount of air that the lungs are unable to remove, leaving the alveoli permanently open.
39. What are the effects of exercise on the heart?
Answer – Exercise also increases the muscles’ ability to remove oxygen from the blood, which reduces the demand for the heart to pump blood to the muscles. reduces stress hormones, which may cause the heart to work harder. Reduces blood pressure and slows the heart rate similarly to a beta blocker.
Physiology and Injuries in Sports Class 12 Questions and Answers
40. Write briefly about the effect of training on
(a) Blood flow
(b) Blood volume
Answer –
(a) Blood flow – Blood flow describes how blood travels through the veins, through capillaries, and ultimately through the arteries. The force that the blood applies to the vessel walls as it travels through them is measured as pressure.
(b) Blook volume – The entire amount of fluid moving through the heart’s arteries, capillaries, veins, venules, and chambers is referred to as blood volume. Red blood cells (erythrocytes), white blood cells (leukocytes), platelets, and plasma are the elements that give blood volume.
41. How does cardiac output respond to training?
Answer – Your heart normally beats more quickly during activity so that more blood can leave your body. By pumping more vigorously or by increasing the volume of blood that fills the left ventricle before your heart pumps, you can also increase the volume of your heart’s stroke.
42. What is pulmonary diffusion?
Answer – “Pulmonary” refers to something that has to do with the lungs. In this context, “diffusion” refers to how efficiently the alveoli, or air sacs, in the lungs transport oxygen to and remove carbon dioxide from the blood in the capillaries (small blood arteries), which surround them.
43. Write briefly about the effect of training on
(a) Lung Volume
(b) Heart rate
Answer –
(a) Lung Volume – Lung volumes are a important component of pulmonary function tests. The total of two or more volumes is the respiratory capacity, also known as pulmonary capacity.
(b) Heart Rate – The number of times the heart beats in a specific amount of time, is known as Heart Rate.
44. What is blood pressuer? Briefly explain its response to exercise.
Answer – the pressure exerted by the blood flow on the artery walls. Diastolic and systolic readings are used to determine blood pressure. Systolic readings are taken when the heart beats, when blood pressure is at its peak (measured between heart beats, when blood pressure is at its lowest).
Physiology and Injuries in Sports Class 12 Questions and Answers
45. Explain long term effects of exercise on muscular system
Answer – The muscle changes in size and shape with regular exercise. Muscle size and shape are altered as a result of increased muscle cells. Correct body posture is maintained by frequent exercise, which helps to build stronger muscles.
46. Explain Short term effects of exercise on muscular system
Answer – Exercise can cause stress and pain in the muscles in the short term. Exercise can cause physiological changes such as muscular hypertrophy over the long term. These physiological modifications affect the muscle, making it simpler to repeat an exercise.
47. Describe the various effects of exercises on muscular system
Answer – Exercise on a regular basis helps keep the muscles toned. Muscles tense up and keep the attachments under a light, consistent pull. Smooth and efficient muscular movement: Muscles move more smoothly and efficiently. The movements made while engaging in various activities become appealing.
49. Describe the changes in endocrine system due to ageing.
Answer – Additionally, hormones are degraded (degraded) more slowly. Other hormones regulate a large number of the hormone-producing organs. Aging alters this process as well. An endocrine tissue, for instance, might generate less of its hormone than it did when it was younger or might produce the same quantity more slowly.
Physiology and Injuries in Sports Class 12 Questions and Answers
50. What is communated fracture? Write its cause, prevention and treatment.
Answer – Broken bones with comminuted fractures are one type. A bone that has fractured in at least two locations is referred to as having a comminuted fracture. Significant trauma, such as car accidents, can result in comminuted fractures. Your bone will need to be repaired surgically, and rehabilitation could last a year or more.
51. What is a sprain? Write its cause, prevention and treatment.
Answer – Ligaments, the strong bands of fibrous tissue that unite two bones in your joints, can be stretched or torn, resulting in a sprain. Your ankle is where sprains occur most frequently. Rest, cold, compression, and elevation are all parts of the initial treatment. Treatment for minor sprains can be completed at home.
52. Name the more common types of fractures and describe them.
Answer – The collarbone, or clavicle, is one of the most often shattered bones. It is the most typical kind of fracture in kids and teenagers. Seniors who fall hard frequently shatter their collarbones. Younger people, teenagers, and kids are more prone to break their collarbone while participating in sports or in a car accident.
53. What is a soft tissue injury? Name four types of soft tissue injury and describe it.
Answer – Muscles, tendons, and ligaments are the soft tissues that are most frequently injured. These accidents frequently happen when participating in sports or exercising, but they can also happen while doing routine daily chores. Common soft-tissue injuries include tendinitis and bursitis, as well as sprains, strains, and contusions.
54. Define muscular strength and Speed.
Answer – Muscular strength is the capacity to exert the maximum amount of force within a single contraction, such as when you are lifting a weight that you could only lift once before you needed to take a little break. Muscular power is the ability to generate a lot of force quickly, as in quick leg kicks and explosive jumping.
Physiology and Injuries in Sports Class 12 Questions and Answers
55. Name the physiological factors determining the component of physical fitness.
Answer – The physiological elements include people’s feelings, physical condition, amount of sleepiness at the time of learning, type of food and beverage they’ve consumed, their age, etc. When you attempt to learn anything new for yourself or to study, consider several physiological variables that are crucial.
56. Write down the aims and objectives of first aid.
Answer – First aid’s objectives are to protect life, stop harm, and encourage recovery. ABC stands for airway, breathing, and circulation in first aid. The recovery position reduces the risk of additional harm.
Physical Education Class 12 Notes
Physical Education Class 12 Questions and Answers
