Locomotion and Movement Chapter-Wise Test 24

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which hormone is responsible for stimulating osteoblasts for bone formation?

Calcitonin
Parathyroid hormone
Insulin
Adrenaline
1

Calcitonin stimulates osteoblasts to promote bone formation and lower blood calcium levels.

Which structure forms the socket in the hip joint?

Glenoid cavity
Acetabulum
Scapula
Clavicle
2

The acetabulum is the cup-like socket in the pelvic girdle that holds the femoral head.

Which statement about the vertebral column is correct?

Humans have a total of 26 vertebrae.
The first vertebra is called the axis.
The lumbar region consists of 7 vertebrae.
The vertebral column is composed of cartilage.
1

The human vertebral column consists of 26 vertebrae.

Which ligament connects the patella to the tibia?

Anterior cruciate ligament
Collateral ligament
Patellar ligament
Achilles tendon
3

The patellar ligament connects the patella (kneecap) to the tibia, assisting in knee movement.

Which of the following bones does NOT belong to the appendicular skeleton?

Femur
Scapula
Tibia
Sternum
4

The sternum is part of the axial skeleton, while the femur, scapula, and tibia belong to the appendicular skeleton.

Which of the following statements is incorrect about muscle contraction?

Calcium ions play a crucial role in muscle contraction.
ATP is required for muscle relaxation.
Myosin heads bind to actin during contraction.
Actin filaments slide away from myosin filaments during contraction.
4

During contraction, actin filaments slide over myosin filaments, not away from them.

Which of the following is an incorrect statement about muscle fibers?

Skeletal muscle fibers are multinucleated.
Cardiac muscle fibers are involuntary.
Smooth muscle fibers are striated.
Muscle fibers contain contractile proteins.
3

Smooth muscle fibers are non-striated, unlike skeletal and cardiac muscles.

Which of the following statements about synovial joints is incorrect?

They have a fluid-filled cavity.
They allow a wide range of movement.
They lack cartilage on articulating surfaces.
Examples include ball-and-socket and hinge joints.
3

Synovial joints have cartilage on the articulating surfaces, which helps in smooth movement​.

Which condition results from excessive deposition of uric acid crystals in joints?

Gout
Osteoporosis
Arthritis
Tetany
1

Gout is caused by the accumulation of uric acid crystals in joints, leading to inflammation and pain.

Which type of joint allows rotational movement around a single axis?

Hinge joint
Ball and socket joint
Pivot joint
Saddle joint
3

Pivot joints, such as the atlantoaxial joint in the neck, allow rotational movement around a single axis.

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