Which of the following is the motor endplate? the Z disc where two sarcomeres ad

Question

Which of the following is the motor endplate? the Z disc where two sarcomeres adjoin the terminal membrane of the motor neuron where neurotransmitter is released the membrane of the sarcoplasmic reticulum where calcium is stored the portion of the membrane of the muscle cell that has postsynaptic receptors that respond to the neurotransmitter released by the motor neuron Why isn't there a large muscle on the front of your tibia (your shin bone)? 7.11 Muscles are arranged in antagonistic pairs. Movement of the foot upwards requires less force than the force required to push against the ground when moving and standing. Muscles are arranged in antagonistic pairs. The calf muscles, on the back of the tibia, are wide enough to act as an antagonistic pair for extension and flexion of the tibia Muscles are arranged in agonistic pairs. The calf muscles, on the back of the tibia, are wide enough to act as an agonistic pain for extension and flexion of the tibia Muscles are arranged in agonistic pairs. The knee joint has limited motion, and flexion of the tibia towards the front of the body is not possible.

Explanation / Answer

1. The portion of the membrane of the muscle cell that has postsynaptic receptors that respond to the neurotransmitter released by the motor neuron.

2. Muscles are arranged in antagonistic pairs. Movement of the foot upwards requires less force than the force required to push against the ground when moving or standing.

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