Body Movements Test - 1

Explanation:

The joint in which no movement is possible is called as fixed joint. Cranium has fixed joints. It pemits stability. Even pelvis too has fixed joint

Explanation:

Hollow bone and wings are adaptive features of birds to fly. Their holow bones contains air sacs which help them to fly

Explanation:

They move by gliding along on their muscular foot, which is lubricated with mucus. Therefore out of  snail, earthworm, cockroach and ant, snail shows slowest movement.

Explanation:

Red blood cells are formed in bone marrow present in long and thick bones.Even White blood cells are also produced in bone marrow that provides defence mechanism of the body 

Explanation:

In human body, heart is located in thoracic cavity protected by rib cage. It pumps blood throughout the body to supply oxygen and other useful nutrients for the body 

Explanation:

Rib cage is present in thoracic cavity that protects the heart and lungs. Typically it consists of 24 ribs and a sternum 

Explanation:

Muscle and bone together helps in movement in body parts. Muscles are tough elastic tissues attached to the bobes  that pull our bones and also helps to get back to their original position, thus facilitating the movement and other physical activities 

Explanation:

Minimum of two muscle is required for the movement of a bone, one for push and other for pull. Elbow joint is simple and needs 2 muscles but comple bone like shoulder needs as many as seven muscles for the movement 

Explanation:

Snail moves by creeping with the help of muscular foot very slowly. Their foot  has a special gland that produces a slimy mucus to make a slippery track to facilitate their movement

Explanation:

Earthworm does not have either an internal skeleton or exoskeleton. They maintain their structure with fluid-filled coelom chambers that function as a hydrostatic skeleton