Mcq on muscle physiology

MCQ on muscle physiology

01.Which of the following are true 

a) Aα -pain sensory
b) Aγ-give motor supply to the muscle spindle
c) Ia –motor supply to the extrafusal fibres
d) Ib – sensory to golgi tendon organ
e) C- faster conduction velocity

MCQs for medical student

Excitable tissue physiology MCQs for medical student 

1. Contractile protein in skeletal muscle includes

a) Actine
b) Myosin
c) Troponin
d) Tropomyosin
e) Actinin

Skeletal & cardiac muscle

Which of the following is common to both skeletal & cardiac muscle

a) Value of the resting membrane potential
b) Property of inherent rhythmicity
c) Type of contractile protein
d) Length of refractory period
e) Length of muscle fiber 

Which of following true or false regarding Na+ - K+ ATPase pump

Which of following true or false regarding Na+ - K+ ATPase pump

a. Is a primary active transport
b. Pump 3K + out and 2Na+ ion into the cell
c. Made up of large beta subunit and small  alpha subunit
d. Maintain cellular volume
e. Digoxin inhibit Na+ - K+ ATPase pump

Explain the physiological basis for generation of action potential in nerve cell

Explain the physiological basis for generation of action potential in nerve cell.

When the drug nicotine is added to the end-plate region of a skeletal muscle,

Explain (a), (b) 

a. When the drug nicotine is added to the end-plate region of a skeletal muscle, it has a stimulating effect on the muscle.

b. The effect of nicotine is blocked when curare is added to the muscle.

Outline the process by which stimulation of a motor nerve produces contraction in a skeletal muscle

Outline the process by which stimulation of a motor nerve produces contraction in a skeletal muscle

Compare cardic and skeletal muscle in view of

Compare cardic and skeletal muscle in view of

1. Structure

2. Action potential

3. Ability for Tetanization

All-or-non law

Explian

1. The ionic basis of nerve action potential

2. All-or-non law

3. How transmission along a myelinated nerve fiber is about 50 tims faster than along an unmyelinated nerve fiber

What are the consequences of paralyzing the sodium: potassium pump in living cells

1.What are the consequences of paralyzing the sodium: potassium pump in living cells

Neurons were treated with a drug

1.1 Neurons were treated with a drug which immediately and permanently blocked the Na+ - K+ ATPase pump.State the changes that are likely to take place in the resting membrane potential

1. Immediately
2. over a period of 20 minutes

1.2 Explain the changes that you have stated in 1.1 on a physiological basis.

Resting membrane potential ( RMP )

Resting membrane potential ( RMP )
1. What is resting membrane potential ( RMP )

2. Explain how RMP is maintained across a typical nerve cell membrane