You can change your booking on ba.com up to 48 hours after the original scheduled time of departure. To make changes after then, you must phone us, or visit a travel shop. All changes must be made within 14 days of the original scheduled departure time.n some cases you will be able to do this on ba.com up to 24 hours prior to the original time of departure. After this point, refunds must be completed offline. Refunds must be completed as soon as possible. The original service fee is not refunded.
Muscular system. Definition. noun. An organ system comprised of skeletal muscles, smooth muscles, and cardiac muscles that are responsible for providing strength, keeping up balance, maintaining posture, allowing movement and producing heat. Supplement.
The muscular layer (muscular coat, muscular fibers, muscularis propria, muscularis externa) is a region of muscle in many organs in the vertebrate body, adjacent to the submucosa.It is responsible for gut movement such as peristalsis.he muscular layer (muscular coat, muscular fibers, muscularis propria, muscularis externa) is a region of muscle in many organs in the vertebrate body, adjacent to the submucosa.