Hinterdarm
Hinterdarm, in anatomy and embryology, refers to the posterior portion of the primitive gut tube. In humans it extends from the distal one-third of the transverse colon to the upper anal canal, and includes the distal colon (descending and sigmoid), rectum, and the upper part of the anal canal up to the pectinate line. The hindgut is distinct from the foregut and midgut and forms the latter part of the digestive tract.
During embryonic development, the hindgut originates from endoderm. At around weeks 4–7, the cloaca—a common chamber
The hindgut receives arterial blood from the inferior mesenteric artery, and venous drainage flows via the
Functionally, the hindgut regions participate in absorption of water and electrolytes, formation and storage of feces,