Test: Human Body and Health- 1 - Class 5 MCQ

Skull has many joints but all of these are fixed joints which do not show any movement at all.

Heat stroke is the most serious form of heat injury and is considered a medical emergency. It can kill or cause damage to brain and other internal organs. It results from prolonged exposure to high temperatures usually in combination with dehydration which leads to failure of the body's temperature control system. In case of heat stroke, one should immediately rehydrate the person with a solution of salt, sugar and lime juice or juice of an unripe mango. This will replenish salt and water that the person has lost through sweating.

We have three types of nerves: motor nerves that carry messages from brain or spinal cord to motor organs only, sensory nerves that carry messages from sensory organs to spinal cord or brain only and mixed nerves that carry messages to and from both sides.

The options A, B, C and D on unscrambling give iron, calcium, sulphur and copper respectively. Out of these, calcium helps in formation of teeth and bones.

Voluntary actions are those actions which are under our control. Digestion of food, beating of heart and breathing are involuntary actions as they are not under our control.

Position the person on his or her back.

If there are no injuries and the person is breathing, raise the person's legs above heart level — about 12 inches (30 centimeters) — if possible. Loosen belts, collars or other constrictive clothing.

Cold is a communicable disease thus, it may spread from Swati to Neha and other roommates also. Anaemia, scurvy, and allergy are non- communicable diseases.

Scurvy is caused due to deficiency of vitamin C. It causes bleeding of gums, tiredness, swelling of joints etc.

Benefits of Daily Yoga Practice:

Yoga is a holistic practice that encompasses physical, mental, and spiritual well-being. Incorporating yoga into our daily routine can bring about various benefits:

1. Strengthens our muscles:
- Regular practice of yoga asanas (poses) helps in strengthening and toning the muscles.
- It improves flexibility, balance, and posture.
- Different poses target specific muscle groups, helping to build strength and endurance.

2. Increases our stamina:
- Practicing yoga regularly can increase our overall stamina and energy levels.
- It involves controlled breathing techniques and flowing movements that enhance cardiovascular endurance.
- As we progress in our practice, we can gradually increase the duration and intensity of our yoga sessions.

3. Improves our concentration:
- Yoga incorporates mindfulness and meditation practices that promote mental focus and concentration.
- By practicing yoga, we learn to calm the mind and stay present in the moment.
- This improved focus can extend beyond the mat and positively impact our daily activities, studies, or work.

4. All of these:
- Daily yoga practice offers a comprehensive approach to physical fitness, mental clarity, and emotional well-being.
- It combines the benefits of strengthening muscles, increasing stamina, and improving concentration.
- Engaging in a regular yoga routine can lead to overall improvements in our physical and mental health.
In conclusion, daily yoga practice offers numerous benefits, including muscular strength, increased stamina, improved concentration, and overall well-being. Incorporating yoga into our daily routine can help us lead a balanced and healthy lifestyle.

Goitre, anaemia and scurvy all are non-communicable diseases and are caused due to deficiency of vitamins or minerals.

Explanation:
The correct order of the amount of different nutrients required by our body is:
- Carbohydrates > Minerals > Proteins > Fats
Here's a breakdown of each nutrient and its importance:
Carbohydrates:
- Carbohydrates are the main source of energy for our body.
- They provide fuel for the brain, muscles, and other organs.
- Carbohydrates are found in foods like grains, fruits, vegetables, and legumes.
Minerals:
- Minerals are essential for various bodily functions.
- They play a role in maintaining healthy bones, teeth, and muscles.
- Examples of minerals include calcium, iron, potassium, and magnesium.
- Minerals are obtained from foods like dairy products, meat, nuts, and seeds.
Proteins:
- Proteins are important for growth, repair, and maintenance of body tissues.
- They are made up of amino acids, which are the building blocks of proteins.
- Proteins are found in foods like meat, poultry, fish, dairy products, legumes, and nuts.
Fats:
- Fats are a concentrated source of energy and are necessary for the absorption of certain vitamins.
- They also play a role in maintaining healthy skin and hair.
- Fats can be found in foods like oils, butter, fatty meats, and dairy products.
In conclusion, while all nutrients are important for a balanced diet, the correct order of the amount of different nutrients required by our body is carbohydrates > minerals > proteins > fats.

In the given figure, P and Q represent triceps and biceps respectively. The triceps and biceps act opposite to each other to make the arm move. Both of these muscles cannot contract or relax at the same time. When triceps relax and biceps contract, the arm moves up. When triceps contract and biceps relax, the arm moves down.

Joints are the places where two bones are joined together. 'X' represents joint between bones in the skull which shows no movement, Y-type joint (hinge joint) present between lower jaw and skull, is also present in elbow. It allows movement in only one direction. Cartilaginous joints are found between vertebrae that allow slight movement of bones unlike the 'X' type joint.

Heart beats about 72 times per minute at rest. In the graph, the heart beats are 72 /min upto point 'b' and then increase gradually upto point 'c'. Thus 'b' is the point when she started light warm up exercises. 'c' is the point when she started running as heart beat increases subsequently. Heart beat starts decreasing from point 'e' thus point 'e' is when she stopped running.

In the given figure P and Q represent ball and socket joint and gliding joint respectively. Pivot joint is found between our backbone and skull.

In the given figure, 'X' is cerebrum, 'Y' is cerebellum and 'Z' is medulla. Cerebrum helps in thinking, learning, remembering and recalling. Cerebellum helps in balancing our body. Medulla controls involuntary actions of the body.