A body cavity is any fluid-filled space in a multicellular organism other than those of vessels (such as blood vessels and lymph vessels).The term usually refers to the space located between an animal âs outer covering (epidermis), and the outer lining of the gut cavity, where internal organs develop.rgans formed inside a coelom can freely move, grow, and develop independently of the body wall while fluid cushions and protects them from shocks. Arthropods and most mollusks have a reduced (but still true) coelom, usually the pericardial cavity and the gonocoel.
Bachelor's degree followed by M.D. or D.O. Field(s) of Study: Pre-med or biological sciences then medicine: Prerequisites: High school diploma or equivalent; satisfactory MCAT scores: Program Length: 4 years for bachelor's degree; 4 years for medical school; 3-7 years in residency and fellowships depending on specialty: Licensure/Certification
For bachelor's degree holders, M.D. programs commonly take four years of full-time study to complete. However, some schools offer specialized programs that allow students to earn a bachelor's degree and a medical degree simultaneously.These programs usually take 6-7 years from start to finish.he last year of a doctor's degree program might culminate in a dissertation or exit exam. Graduates then must complete a residency to qualify to practice medicine in the United States. Most such programs for aspiring doctors offer services that help students look for and apply to subsequent medical residency programs.