Select the incorrect statement out of the following.
Skull has many joints but all of these are fixed joints which do not show any movement at all.
In case of heat stroke, what should be done immediately?
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.
____ nerves carry messages from the sense organs to the brain or spinal cord only while _____ nerves carry messages from the brain or spinal cord to the organs only.
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.
Identify the parts labelled as P, Q, R and S in the figure and select the correct option.
X helps in the formation of teeth and bones. Select the option that gives name of X on unscrambling.
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.
Sania was asked to write about some actions which are voluntary in nature. She has written some involuntary actions too. Pick the involuntary actions written by Sania from the list given below.
(i) Chewing food
(ii) Sitting upright on a table
(iii) Digestion of food
(iv) Beating of heart
(v) Singing a song
(vi) Dancing(vii) Breathing
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.
When a person faints, you should ___.
Saurabh's mother called him for dinner. She prepared his thali as shown in the given figure. Which essential nutrient is significantly absent in his dinner thali?
Neha lives in a hostel and has six roommates. Out of them four fell ill. Which of them can make Neha fall ill?
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.
While brushing, Rohit's gums bleed. He is also feeling wobbly teeth, is tired most of the time and has pain in the joints. Select the disease he is suffering from and its cause?
Scurvy is caused due to deficiency of vitamin C. It causes bleeding of gums, tiredness, swelling of joints etc.
We should exercise yoga daily, because it______.
Select the group of diseases that spread by the same means or have the same cause.
Goitre, anaemia and scurvy all are non-communicable diseases and are caused due to deficiency of vitamins or minerals.
In our diet, we should have different nutrients in sufficient amounts. Select the option that gives correct order of amount of different nutrients required by our body.
Shiva has just completed vigorous exercise. Which part of the graph most likely shows the time when he has just stopped exercising?
Refer to the given figure and select the correct statement.
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.
Refer to the given figure and select the correct option
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.
Surabhi is practising hard to win the inter- school marathon. One day, her instructor measured and recorded the number of her heart beats during her training session in which she did some warm up exercises and then run. He plotted his recordings in the graph as shown. Select the correct option regarding this.
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.
Match the given columns and select the correct option from the codes given below.
The figures P and Q represent the movement of two types of joints in our body.
Select the incorrect statement about the Joints represented.
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.
Dr. Priya has three patients each with a different problem.
(i) Naman cannot remember things, not even his name.
(ii) Nidhi moves in a jerky manner.
(iii) Beena has difficulty in breathing and digestion.
Now, refer to the given diagram and match these patients to the part of the brain which may be malfunctioning in them.
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.