Select the following that are part of the endomembrane system

A neuron is undergoing repolarization following an action potential. Which ion movement is occurring most directly during this stage?

A scientist blocks calcium release from the sarcoplasmic reticulum in skeletal muscle cells. Which event would be prevented most directly?

A toxin causes voltage-gated sodium channels in neurons to remain closed. Which event would be most directly prevented?

A patient experiences chronically elevated heart rate, dilated pupils, and reduced digestive activity during periods of stress. Which division of the nervous system is most active?

Which statement best describes the combined roles of the heart and blood vessels in maintaining homeostasis?

A patient loses the ability to sense body position after damage to receptors embedded within skeletal muscles and tendons. Which receptor type was most directly affected?

Put the following steps of cellular respiration in order.

A patient suffers damage to a brain structure responsible for coordinating movement and maintaining balance. The patient’s motions become clumsy and unsteady despite normal muscle strength. Which structure was most likely injured?

A patient with arthritis experiences deterioration of the smooth tissue covering the ends of bones within a synovial joint. As the condition worsens, movement becomes increasingly painful due to bone-on-bone contact. Which structure has most likely deteriorated?