A cloaca (/ k l oʊ ˈ eɪ k ə / ⓘ kloh-AY-kə), pl.: cloacae (/ k l oʊ ˈ eɪ s i / kloh-AY-see or / k l oʊ ˈ eɪ k i / kloh-AY-kee), or vent, is the rear orifice that serves as the only opening for the digestive , reproductive, and urinary tracts (if present) of many vertebrate animals.

2025年2月28日 · Cloaca, (Latin: “sewer”), in vertebrates, common chamber and outlet into which the intestinal, urinary, and genital tracts open. It is present in amphibians, reptiles, birds, elasmobranch fishes (such as sharks), and monotremes. A cloaca is not present in placental mammals or in most bony fishes.

5 天之前 · The cloaca is a testament to the remarkable diversity of life and the ingenious solutions nature has evolved to address fundamental biological needs. Understanding the cloaca provides valuable insights into the anatomy, physiology, and reproductive strategies of …

2017年7月4日 · Cloaca Definition. A cloaca is an orifice through which urine and feces are eliminated in birds, reptiles, amphibians, and a few branches of the mammal family tree. It also serves a reproductive function like the vagina in females of these species, and also performs the function of sperm ejaculation in males of some species.

The hindgut of the avian digestive system terminates in the cloaca. The external opening through which faecal matter and uric acid is excreted is called the vent. The shape of the vent varies depending on species.

Cloaca Anatomy and Physiology. The cloaca consists of three compartments and collects the excretion of the digestive tract, the urinary tract, and the genital tract. The proximal coprodeum is the extension of the colorectum and is not distinctly delineated from this.

2024年10月7日 · Anatomy of the Cloaca The cloaca is a remarkable anatomical structure, serving as a convergence point for multiple bodily systems. Its design is a testament to evolutionary efficiency, allowing for the integration of reproductive, excretory, and digestive functions.

2010年4月16日 · The cloaca is a bird anatomy part most people never see. It’s under the bird and usually covered by feathers. Cloaca (pronounced klo-A-ca) is a Latin word that means “to cleanse” and is aptly used to name the bird’s single opening for its urinary, intestinal and reproductive tracts.

2025年1月12日 · Reptiles have a unique anatomical structure called the cloaca, which plays a crucial role in their excretory system. The cloaca in reptiles serves as a multipurpose chamber responsible for waste elimination, reproduction, and urinary functions.

2024年11月30日 · The duck cloaca is a remarkable anatomical feature, serving as a convergence point for multiple systems within the avian body. Located at the posterior end of the digestive tract, it functions as a shared outlet for the intestinal, urinary, and reproductive systems.