The number of muscle fibers in a motor unit are least in______________?

Related Mcqs:

1. The contractile element in a skeletal muscle is present in______________?

   A. Sarcolemma
   B. Sarcoplasm
   C. Myofibril
   D. Endomysium

2. Among the muscles of TMJ the following muscle opposing stabilizing and antagonistic muscle force as far as the disc is concerned_____________?

   A. Medial pterygoid
   B. Temporalis
   C. Lateral pterygoid
   D. External pterygoid

3. Motor supply of infrahyoid muscle is______________?

   A. Branches of cervical plexus
   B. Vagus nerve
   C. Glossopharyngeal nerve
   D. Mandibular nerve

4. The velocity of conduction in the Purkinjie fibers of the heart is__________________?

   A. 1 to 4 m/sec
   B. 5 to 8 m/sec
   C. 9 to 12 m/sec
   D. More than 12 m/sec

5. Preganglionic parasympathetic fibers are_______________?

   A. Somatic only
   B. Parasympathetic
   C. Sympathetic
   D. Cholinergic

6. Unmyelinated fibres differ from myelinated fibers in that they ______________?

   A. Have increased excitability
   B. Have to nodes of Ranvier
   C. Have no power of regeneration
   D. Have no association of Schwann cells

7. Group B fibers are present in_____________?

   A. Intrafusal fibers of the muscle spindle
   B. Golgi tendon apparatus
   C. Autoonomic preganglionic fibers
   D. Spinothalamic tracts

8. Sensory nerve fibers to posterior one third of the tongue is supplied by ______________?

   A. XII cranial nerve
   B. IX cranial nerve
   C. X cranial nerve
   D. VII cranial nerve

9. Position and movement of articular disc of TMJ is controlled by fibers of_____________?

   A. Lower head of lateral pterygoid muscle
   B. Sphenomandibular ligament
   C. Superficial head of medial pterygoid muscle
   D. Upper head of lateral pterygoid muscle

10. Which type of collagen fibers demonstrates Chicken wire configuration ?

    A. Type I
    B. Type II
    C. Type III
    D. Type IV