Skeletal & Muscular System | Mock Test | Staff Nurse | Guides Academy

Skeletal & Muscular System - Formation and growth of bones, tendons, ligaments and cartilages, classification of bones, axial and appendicular skeleton. Structure and function of muscle

The skeletal and muscular systems work together to support the body, enable movement, and protect internal organs. The skeletal system is made up of bones, joints, and cartilage, providing structure, shape, and protection to vital organs like the brain, heart, and lungs. It also produces blood cells in the bone marrow and stores minerals like calcium.

The muscular system consists of skeletal, smooth, and cardiac muscles. Skeletal muscles are attached to bones and help in voluntary movements, while smooth muscles control involuntary actions like digestion, and cardiac muscle powers the heart. Together, these systems maintain posture, generate body heat, and allow coordinated physical activity.

Time: 15:00

Which type of cell is responsible for forming new bone tissue?

[a] Osteoclasts

[b] Osteoblasts

[c] Osteocytes

[d] Chondrocytes

What type of tough, fibrous connective tissue connects muscles to bones?

[a] Ligaments

[b] Cartilage

[c] Tendons

[d] Fascia

The femur (thigh bone) is an example of which classification of bone?

[a] Flat bone

[b] Short bone

[c] Irregular bone

[d] Long bone

Which of the following bone groups is part of the axial skeleton?

[a] The pectoral girdle

[b] The vertebral column, skull, and rib cage

[c] The bones of the upper and lower limbs

[d] The pelvic girdle

What is the functional contractile unit of a skeletal muscle fiber?

[a] Myofibril

[b] Fascicle

[c] Sarcomere

[d] Myosin filament

The process of bone formation is called:

[a] Resorption

[b] Hemopoiesis

[c] Articulation

[d] Ossification

Ligaments are connective tissues that join:

[a] Muscle to muscle

[b] Muscle to bone

[c] Bone to bone

[d] Nerve to muscle

The bones of the wrist (carpals) and ankle (tarsals) are classified as:

[a] Long bones

[b] Short bones

[c] Flat bones

[d] Sesamoid bones

The pectoral girdle, which connects the upper limbs to the axial skeleton, is composed of the:

[a] Sternum and ribs

[b] Humerus and radius

[c] Clavicle and scapula

[d] Ilium and ischium

In the sliding filament model of muscle contraction, which myofilament is the "thick" filament?

[a] Actin

[b] Myosin

[c] Troponin

[d] Tropomyosin

What type of cartilage is found covering the ends of long bones in synovial joints to provide a smooth, lubricated surface?

[a] Fibrocartilage

[b] Elastic cartilage

[c] Hyaline cartilage

[d] Osseous cartilage

Which bone does not articulate with any other bone in the body?

[a] The patella

[b] The hyoid bone

[c] The sternum

[d] The sacrum

The vertebrae in the neck region are known as the ________ vertebrae.

[a] Thoracic

[b] Lumbar

[c] Sacral

[d] Cervical

Which of the following is NOT a primary function of the muscular system?

[a] Producing movement

[b] Generating heat

[c] Maintaining posture

[d] Storing calcium and minerals

The shaft of a long bone is called the:

[a] Epiphysis

[b] Diaphysis

[c] Metaphysis

[d] Periosteum

Which large, triangular bone is commonly known as the shoulder blade?

[a] Clavicle

[b] Sternum

[c] Scapula

[d] Humerus

Which type of muscle tissue is striated and under voluntary control?

[a] Smooth muscle

[b] Cardiac muscle

[c] Skeletal muscle

[d] Visceral muscle

The mature bone cells that maintain the bone matrix are called:

[a] Osteoblasts

[b] Osteoclasts

[c] Osteocytes

[d] Stem cells

The bones of the skull, ribs, and sternum are all examples of:

[a] Flat bones

[b] Long bones

[c] Short bones

[d] Irregular bones

Which ion is released from the sarcoplasmic reticulum to trigger muscle contraction?

[a] Sodium (Na+)

[b] Potassium (K+)

[c] Iron (Fe2+)

[d] Calcium (Ca2+)

The bones of the fingers and toes are called:

[a] Carpals

[b] Tarsals

[c] Phalanges

[d] Metacarpals

A muscle that opposes or reverses a particular movement is known as an:

[a] Agonist

[b] Synergist

[c] Fixator

[d] Antagonist

Which of the following is NOT part of the appendicular skeleton?

[a] The femur

[b] The clavicle

[c] The sternum

[d] The humerus

The type of muscle found in the walls of hollow internal organs like the stomach and intestines is:

[a] Skeletal muscle

[b] Cardiac muscle

[c] Smooth muscle

[d] Voluntary muscle

The cell membrane of a muscle fiber is called the:

[a] Sarcoplasm

[b] Sarcolemma

[c] Sarcoplasmic reticulum

[d] Myofibril