MEDICAL PHYSIOLOGY

PHYSIOLOGY

SYNAPTIC PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these 4 events does NOT need to occur when a muscle contracts?
A
It must be stimulated by a nerve ending
B
Action potential is propagated along sarcolemma
C
Rise is Ca2+ ions
D
An increase in Mg+
Explanation: 

Detailed explanation-1: -So, the correct answer is ‘Decrease in length of actin myofilaments’.

Detailed explanation-2: -A healthy and varied diet should provide all the sodium, potassium, calcium, magnesium and iron you need for proper muscle function.

Detailed explanation-3: -Depolarisation and calcium ion release. Actin and myosin cross-bridge formation. Sliding mechanism of actin and myosin filaments. Sarcomere shortening (muscle contraction)

There is 1 question to complete.