Final answer:
Insulin activates tyrosine kinase receptors and triggers the movement of glucose transporter vesicles to the muscle cell membrane, increasing cellular glucose uptake.
Step-by-step explanation:
Insulin facilitates glucose uptake in muscle cells by activating tyrosine kinase receptors and triggering the phosphorylation of proteins within the cell. This phosphorylation cascade leads to the movement of glucose transporter vesicles to the cell membrane. Insulin also increases the number of high affinity glucose transporter molecules on the outer membrane of muscle cells, allowing for increased uptake of glucose from the blood into the cells.