Skeletal System

Q. Explain the four basic properties of muscles?

Q.

What is the function of tendons and ligaments?

Q.

Areolar connective tissue joins

1. Bones with bones

2. Bones with muscles

3. Fat body with muscles

4. Integument with muscles

Q.

What is exoskeleton

Q.

Gliding joint is present in:

1. Shoulder

2. Hip

3. Knee

4. Ankles

Q.

Tendons that attach skeletal muscle to bones and ligaments, which attach one bone to another are examples of which tissue?

1. Loose connective tissues

2. Dense regular connective tissues

3. Dense irregular connective tissues

4. Cartilage

Q.

A person met with an accident in which two long bones of hand were dislocated. Which among the following may be the possible reason?

1. Tendon break

2. Break of skeletal muscle

3. Ligament break

4. Areolar tissue break

Q.

Question 2

Which of the following joints is immovable?
(a) Shoulder and arm
(b) Knee and joint
(c) Upper jaw and skull
(d) Lower jaw and upper jaw

Q.

Which of the following organism has both endo and exoskeleton?

1. Cow

2. Tortoise

3. Snail

4. Crab

Q.

Name the vestigial part of the human alimentary canal.

Q.

The organelle that acts as a supporting skeletal framework of the cell is:

1. Mitochondria

2. Golgi apparatus

3. Endoplasmic reticulum

4. Nucleus

Q.

Why the bone is an example of the connective tissue?

Q.

The endoskeleton of the cell is made up of

1. Cell wall

2. Endoplasmic reticulum

3. Cytoplasm

4. Mitochondria

Q.

Which of the following organisms do not have an endoskeleton?

1. Reptiles

2. Birds

3. Insects

4. Amphibians

Q.

All ribs are attached to the sternum.

1. True

2. False

Q.

Why do fishes have fins?

Q.

Assertion - Parenchyma tissue helps in the storage of food in plants.

Reason - Parenchyma tissue is the main site of photosynthesis

Q.

What is the shell of a snail made up of? Describe its function.

Q.

Skull is made of many small bones which are held together by joint.

1. hinge
2. fixed
3. ball and socket

Q.

The ___ of a fish allows the fish to change its direction while swimming.

1. Tail fin

2. Skin

3. Gills

4. Flaps

Q.

Write the function of Pericardium.

Q.

Which set includes all vestigial structure of a man.

1. Ear muscle, atlas, body hairs

2. coccyx, wisdom teeth, patella

3. Coccyx, wisdom teeth, ear muscle

4. Vermiform appendix, body hair, cochlea

Q. Match the following bones to the organs they protect.

1. Brain
2. Spinal cord
3. Lungs & heart
4. Kidney

Q.

Which of the following has no skeleton?

1. Jelly fish

2. Lizard

3. Moth

4. Butterfly

Q. What is cartilage?

Q.

Question 1.4

Fill in the blanks:
The contraction of the ___ pulls the bones during movement.

Q. The foot of a snail is .

1. flat
2. curved
3. round

Q. The purpose of the rib cage is to____.

1. protect the skull
2. protect the eyes
3. protect the spinal cord
4. protect the heart and lungs

Q. The joint which allows rotation in a complete circle is known as a _______.

1. hinge joint
2. fixed joint
3. pivotal joint
4. ball and socket joint

Q.

What type of skeleton is found in the cow?

1. Endoskeleton

2. Chitin

3. Both a and b

4. Exoskeleton