Question: In an isotonic contraction of the muscle________________?

• 1. The muscle moves a load through a distance
• 2. The muscle is not able to move the load
• 3. The latent period of contraction is shorter than isometric contraction
• 4. The length of muscle is increased

Question: The study of the electrical activity of the muscle is_______________?

• 1. EEG
• 2. EMG
• 3. Venn diagram
• 4. ECG

Question: The following electrodes are used to detect the muscle activity without pain_________________?

• 1. Surface electrode
• 2. Round electrode
• 3. Hook electrode
• 4. Needle electrode

Question: Contractile element in myofibril is_______________?

• 1. H band
• 2. Sarcoplasm
• 3. Sarcomere
• 4. A line

Question: Calcium ions triggers muscle contraction by binding to ___________________?

• 1. Actin
• 2. Myosin
• 3. Troponin
• 4. Tropomyosin

Question: What is true about pneumothorax ?

• 1. Total chest wall diameter is increased
• 2. Interpleural pressure becomes more negative
• 3. The concentration of surfactant is reduced in alveoli
• 4. Increased lung compliance

Question: Inability of exchange of oxygen through lung tissue if known as____________?

• 1. Anoxic anoxia
• 2. Anoxia
• 3. Histotoxic hypoxia
• 4. Ischemic hypoxia

Question: The approximate amount of air left in the lungs after maximal forced expiration in a normal woman______________?

• 1. 0.5 L
• 2. 2.0 L
• 3. 1.1 L
• 4. 1.8 L

Question: Carotid body function in an organ work as_______________?

• 1. Differential pressure of oxygen in arterial blood
• 2. Differential pressure of oxygen in venous blood
• 3. Differential pressure of oxygen in in tissue fluids
• 4. Differential pressure of oxygen in in hemoglobin synthesis

Question: The transport of CO is diffusion limited because_______________?

• 1. Bind avidly with Hb
• 2. Partial pressure of CO is less
• 3. CO is less absorbed in water
• 4. Alveolar membrane is less permeable