A. white and brown
B. White and yellow
C. White and gray
D. White and red
Two major types of muscle fibres are found in humans_____________? Read More »
Medical Mcqs, Muscles and Neuromusclar Junction, Physiology Mcqs A. Insufficient neurotransmitter
B. Depletion of intracellular Na+
C. Inactivation of Na+ k+ ATPase
D. Voltage inactivation of the Na+ channel
The absolute refractory period of an action potential is due to _______________? Read More »
Medical Mcqs, Muscles and Neuromusclar Junction, Physiology Mcqs A. Adaptation
B. Accommodation
C. Refractoriness
D. Electrotonus
A. Laryngeal muscles
B. Pharyngeal muscles
C. Muscles of middle ear
D. Extraocular muscles
The number of muscle fibers in a motor unit are least in______________? Read More »
Medical Mcqs, Muscles and Neuromusclar Junction, Physiology Mcqs A. Inhibiting cholinesterase
B. Inhibiting the CNS
C. Depolarizing the motor end plate of skeletal muscle
D. Blocking the release of acetyl choline at the end plate
Succinyl choline acts to block neuromuscular transmission by_______________? Read More »
Medical Mcqs, Muscles and Neuromusclar Junction, Physiology Mcqs A. Pumps Na against a gradient
B. 5 Na+ exchanged for 2K+
C. Increase in intracellular Na
D. Hypocalcemia inhibits the pump
Non true regarding Na/K pump is______________? Read More »
Medical Mcqs, Muscles and Neuromusclar Junction, Physiology Mcqs A. A flexor muscle and an extensor muscle
B. A single skeletal muscle and all the motor peurons that supply it
C. A single motor neuron and all the muscle fibers it innervates
D. All the motor neurons in which response are observed after maximal stimulation of a single sensory nerve
A motor unit is made up of______________? Read More »
Medical Mcqs, Muscles and Neuromusclar Junction, Physiology Mcqs A. Dopamine
B. Eephrine
C. Nor eephrine
D. Acetylcholine
The neuromuscular transmitter released at neuromuscular junction is_______________? Read More »
Medical Mcqs, Muscles and Neuromusclar Junction, Physiology Mcqs A. there is lack of acetyl choline
B. Lack of acetyl choline receptors
C. There is isometric contraction
D. Muscles are rigid and tough
In myasthenia gravis_______________? Read More »
Medical Mcqs, Muscles and Neuromusclar Junction, Physiology Mcqs A. Tomes fibers
B. Interstitial fibers
C. Sharpey’s fibers
D. Haversian fibers
Tendon (or) ligament is attached to a bone through ____________? Read More »
Medical Mcqs, Muscles and Neuromusclar Junction, Physiology Mcqs