Identify the correct statement regarding the use of ATP in muscle contraction:
1. ATP cannot be directly used for muscle contraction.
2. ATP is not required for muscle relaxation.
3. When ATP is hydrolyzed, the conformation of myosin is changed.
4. Once the cross-bridge is formed, the hydrolysis of ATP initiates the power stroke.

Classification of joints is done on the basis of:

Given these types of joints:

a. gomphosis
b. suture
c. symphysis
d. synchondrosis
e. syndesmosis

Choose the types that are held together by fibrous connective tissue.

1. a, b, c

2. a, b, e

3. b, c, e

4. c, d, e
 

Identify the incorrectly matched pair:

What type of joints are intervertebral discs?
1. sutures.
2. syndesmoses.
3. symphyses.
4. synovial joints.

The primary cartilaginous joints and the secondary cartilaginous joints are respectively called:

1. sutures; synchondroses

2. syndesmoses; symphyses

3. symphyses; syndesmoses

4. synchondroses; symphyses

A space between the bones of the skull in an infant or fetus, where ossification is not complete and the sutures not fully formed is called a:

1. synchondrosis.

2. syndesmosis.

3. symphysis.

4. fontanel.

The type of joint between the first rib and the sternum is a
1. suture.
2. plane joint.
3. synchondrosis.
4. synovial joint.

The articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage but their stability is due to the presence of:

1. fascia.

2. joint capsule.

3. tendon sheath.

4. aponeurosis.

The synovial fluid in the synovial cavity is secreted by:
1. both articulating bone.
2. articular cartilage cells.
3. adipose cells.
4. the synovial membrane.