Movement in animals and plants

Internal skeleton structure of human beings is known as ___.

• saliva

• endoskeleton

• exoskeleton

• none of this

The part of a skeleton that consist of girdle and bones of limbs is called the ___.

• axial skeleton

• appendicular skeleton

• liver

• brain

An adult human skeleton system has ___ bones.

• 216

• 208

• 206

• 212

___ muscles work according to our will.

• Voluntary

• Involuntary

• Accesory

• None of these

The voluntary muscles are found in the wall of the heart.

• True

• False

Muscles are of two types - smooth or visceral muscles and cardiac muscles.

• True

• False

The cardiac muscles are self-stimulated and thus, they contract and relax rhythmically by themselves in order to keep the heart beating.

• True

• False

Skeletal muscles are striated in appearance.

• True

• False

Cartilages are hard and brittle.

• True

• False

Skeletal muscles are voluntary muscles.

• True

• False