Why are skeletal muscles usually found in opposing pairs?

1.  One muscle alone cannot extend a joint
2.  Muscles can only work by contraction
3.  One muscle alone cannot flex a joint
4.  Paired muscles are stronger
5.  Muscles normally work in antagonistic fashion

A voluntary muscle that is capable of relaxing continuously and do not fatigue easily is known as

1.  skeletal muscle
2. biceps
3. triceps
4. cardiac muscle
5. smooth muscle. 

The joint in the human body which allows movement in all directions is known as

1.  pivot
2.  hinge
3.  double hinge
4.  ball
5.  peg and socket and socket

A joint which allows rotation in all planes is called

1.  suture
2.  ball and socket
3.  pivot
4. ligament
5.  hinge.

Caridac muscle can be found in which part of the animal body?

1. Skull
2. Heart
3.  Small intestine
4.  Limbs
5.  Head.

Straightening and bending of the arm involve contraction of the biceps and triceps muscles. Which of the following alternatives describes the state of muscles when human arm is bent?

1. Biceps muscles contract while triceps relax 
2. Triceps muscles contract while biceps relax
3. Both the biceps and triceps muscles relax 
4. Biceps muscles relax while triceps contract
5. Both biceps and triceps muscles contract

 Match the functions of components of the skeleton in List A with their corresponding components of the skeleton in List B by writing the letter of the correct response beside the item number in the answer booklet provided.

  Name three type of muscles found in mammals.

Briefly explain how muscles are adapted to their role. Give three points.

(i) Name three types of muscles found in mammals.

(ii) Which one of the muscle named in (i) is a voluntary muscle?

Briefly explain the functions of the following component of the skeleton:

1. Skull

2. Ribs

3. Vertebral column

4. Pelvic girdle.

Explain the functions of the major components of the human skeleton and their adaptations.

Briefly explain three importance of movement in plants and animals.

State any five functions of the skeleton.

Name two types of girdles found in the skeletal system.

(i) Describe the three main functions of limb girdles.

(ii) State the type of joint formed at the girdles.

How is the axial skeleton adapted to perform its function? Give three points.

Human skeleton serves several functions in the body. With one example in each case, explain four functions of human skeleton. (10 marks)

"Animals cannot survive without moving from one place to another." Justify this statement by giving three points with one example in each.