Locomotion and Movement
Test 1

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following is a voluntary type of muscle?

Cardiac muscle
Visceral muscle
Skeletal muscle
Smooth muscle
3

Skeletal muscles are voluntary muscles controlled by the nervous system.

Which connective tissue layer holds muscle bundles together?

Epimysium
Endomysium
Fascia
Sarcolemma
3

Fascia is a collagenous connective tissue layer that binds muscle bundles together.

Which protein is responsible for the contraction of muscle fibers?

Collagen
Keratin
Myosin
Elastin
3

Myosin, along with actin, is responsible for muscle contraction.

What is the functional unit of muscle contraction?

Myofibril
Sarcomere
Sarcolemma
T-tubule
2

The sarcomere, composed of actin and myosin filaments, is the functional unit of muscle contraction.

Which of the following statements about fibrous joints is correct?

They allow free movement between bones.
They are found in the knee joint.
They allow slight movement between bones.
They do not allow movement between bones.
4

Fibrous joints do not allow movement; they are found in structures like the skull sutures​.

Which of the following bones is incorrectly matched to its classification?

Femur - Long bone
Humerus - Irregular bone
Sternum - Flat bone
Vertebra - Irregular bone
2

The humerus is a long bone, not an irregular bone​.

Which of the following statements about synovial joints is incorrect?

They have a fluid-filled cavity.
They allow a wide range of movement.
They are immovable.
The knee joint is a synovial joint.
3

Synovial joints allow considerable movement, unlike immovable fibrous joints​..

Which statement about the vertebral column is correct?

It consists of 30 vertebrae.
The lumbar region has 5 vertebrae.
The sacrum is made of a single bone.
Cervical vertebrae are 8 in number.
2

The lumbar region consists of 5 vertebrae, while the vertebral column has a total of 26 vertebrae​.

Which ion plays a crucial role in muscle contraction?

Sodium
Potassium
Calcium
Magnesium
3

Calcium ions bind to troponin, exposing myosin-binding sites for muscle contraction.

Which muscle type is found in the walls of internal organs?

Skeletal muscle
Cardiac muscle
Smooth muscle
Tendons
3

Smooth muscles are involuntary muscles present in the walls of internal organs like the alimentary canal.

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