Arthritis and Muscular System Quiz

Which of the following is the primary cause of most forms of arthritis?

• Autoimmune disorders

• Viral or bacterial infections

• Age-related degeneration

• Genetic mutations

What is the term used for the condition where uric acid crystals form in the synovial joints?

• Rheumatoid Arthritis

• Osteoarthritis

• Gouty Arthritis

• Lyme Arthritis

Which form of arthritis is commonly known as "rich man's disease"?

• Osteoarthritis

• Rheumatoid Arthritis

• Gouty Arthritis

• Lyme Arthritis

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

• Movement

• Thermoregulation

• Posture stabilization

• Immune response

Which connective tissue surrounds an individual muscle cell?

• Epimysium

• Endomysium

• Perimysium

• Sarcoplasmic reticulum

The sarcoplasmic reticulum stores and releases which ion that is critical for muscle contraction?

• Sodium (Na+)

• Potassium (K+)

• Calcium (Ca2+)

• Magnesium (Mg2+)

What is the role of troponin in muscle contraction?

• It stores calcium ions.

• It binds to actin to trigger contraction.

• It regulates the interaction between actin and myosin.

• It provides energy for the muscle.

Which of the following steps occurs first in the cross-bridge cycle?

• Cross bridge formation

• Power stroke

• Cross bridge detachment

• Cocking of the myosin head

Which source of ATP provides muscle activity for up to 10 seconds of intense activity?

• Stored ATP

• Creatine Phosphate (CP)

• Anaerobic Glycolysis

• Aerobic Mechanism

Which type of skeletal muscle fiber contracts quickly and generates a lot of power but fatigues quickly?

• Fast Glycolytic (FG)

• Slow Oxidative (SO)

• Fast Oxidative (FO)

• Intermediate Fibers