Science and Elementary Technology

Do these review exercises in your exercise book.

1. Muscles are the ............ found in the body. 

 (a) tissues             (b) cells 

 (c) organs              (d) none of these 

 2. Muscles that work at our will are called ………… muscles. 

 (a) voluntary         (b) involuntary 

 (c) cardiac             (d) none of these 

 3. Muscles that do not work at our will are called ………… muscles. 

 (a) voluntary           (b) involuntary

(c) cardiac                 d) none of those

1. Muscles together with bones help in the movement of body. 

 2. Muscles of the arms and legs are involuntary muscles.

 3. Shoulder muscles prevent joint dislocations.

 4. Muscles keep the joints in good shape.

 5. In case of muscle cramp, we should take a cold water bath.

1. Facial muscles                                                                    (a) Allow the body to run, jump and play 

 2. Eye muscles                                                                        (b) Prevent joint dislocation 

 3. Shoulder muscles                                                             (c) Enable us to open or close our eyes 

 4. Knee muscles                                                                     (d) Keep the arms attached to the body

5. Chest muscles                                                                      (e) Facial expression

Across 

3. This type of muscle is present in heart and intestines.

 4. This is a painful contraction of muscle.

Down

1. This is the point at which bones are joined. 

2. Together with bones they help in the movement of our body.