MUSCLE NERVE CARTILAGE BONE
SKELETAL MUSCLE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
rest, nerve action, ACh released, transmitted, Ca released
|
|
|
ACh released, Ca released, nerve action, transmitted, rest
|
|
|
rest, nerve action, Ca released, ACh released, transmitted
|
|
|
ACh released, Ca released, transmitted, nerve action, rest
|
Detailed explanation-1: -(1) A message travels from the nervous system to the muscular system, triggering chemical reactions. (2) The chemical reactions lead to the muscle fibers reorganizing themselves in a way that shortens the muscle–that’s the contraction.
Detailed explanation-2: -Depolarisation and calcium ion release. Actin and myosin cross-bridge formation. Sliding mechanism of actin and myosin filaments. Sarcomere shortening (muscle contraction)
Detailed explanation-3: -1) An AP travels down the axon. to the axon terminal. 2) Electrical gated calcium channels open. 3) Calcium causes the vesicles to. 4) ACH diffuses across the synaptic cleft. 5) ACH binding opens ion channels. 6) If the muscle reaches the threshold (-55mv) at the motor end plate. 7) ACH is broken down by.
Detailed explanation-4: -A nerve impulse travels to the neuromuscular junction on a. Ach is released from the axon to receptors located on the. The binding Ach causes depolarization of the sarcolemma by. Na+ ions diffuse into the muscle fiber and depolarization. More items