Quick answer: Food enters the human digestive system through the mouth before then moving through the pharynx, esophagus, stomach, intestines, rectum and anus.
Answer:
Sarcoplastic reticulum
Explanation:
The sarcoplastic reticulum is a structure found in muscle cells that stores calcium ions in skeletal muscles. They are made up of a network of smooth endoplasmic reticul (SER), that wrap around the myofibrils and help in transmitting electrical impulses that will determine whether the muscle will contract or not.
Answer:
What??
Can you translate it in English dude