What is the cloaca in humans?
What is a cloaca? Early in the development of a female fetus, the tissue that is supposed to become the intestinal, genital, and urinary tracts are together in one unit known as a “cloaca.” These three typically separate as a pregnancy proceeds, creating the anus, the vagina, and the urethra.
What goes in a cloaca?
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.
Can humans have cloacas?
Being placental animals, humans only have an embryonic cloaca, which is split up into separate tracts during the development of the urinary and reproductive organs.
What does cloaca mean medically?
Cloaca: A common passageway for feces, urine and reproduction. At one point in the development of the human embryo, there is a cloaca. Cloaca is the Latin word for drain or sewer.
What is turtle cloaca?
Turtles have a cloaca, which is essentially their butt, that has a lot of blood vessels, so the most efficient way to get oxygen is through the cloaca, hence the term cloacal respiration.
What does having a cloaca mean?
What is a cloaca on a chicken?
Chicken and egg Both male and female birds have an orifice known as a cloaca. When the cloacae are touched together, sperm is transferred to the female reproductive tract. This is known as a “cloacal kiss”.
What is another name for cloaca?
What is another word for cloaca?
| sewer | conduit |
|---|---|
| drain | gutter |
| trench | cesspit |
| culvert | sump |
| cesspool | stitcher |
Did dinosaurs have a cloaca?
In January scientists from the University of Bristol and the University of Massachusetts Amherst revealed in the journal Current Biology that they had found a dinosaur cloaca. Cloacas, for the uninitiated, are the equivalent of an anus, urethra and genitalia, found in animals like amphibians, birds and reptiles.
What is the opposite of a cloaca?
A near opposite of CLOACA is A. SLUICE (a stream of fluid things).
Which is the best definition of a cloaca?
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.
What kind of animal has a cloaca opening?
In addition to birds, amphibians, reptiles, sharks, and rays have a cloaca, the same type of common opening for the digestive, excretory, and reproductive systems. A bird’s cloaca is usually covered with feathers and not able to be seen during casual observation.
Which is the correct spelling, cloaca or KLOH?
For other uses, see Cloaca (disambiguation). In animal anatomy, a cloaca / kloʊˈeɪkə / kloh-AY-kə (plural cloacae / kloʊˈeɪsi / kloh-AY-see or / kloʊˈeɪki / kloh-AY-kee) is the posterior orifice that serves as the only opening for the digestive, reproductive, and urinary tracts (if present) of many vertebrate animals, opening at the vent.
What is the function of the cloaca in reptiles?
In reptiles, the cloaca consists of the urodeum, proctodeum, and coprodeum. Some species have modified cloacae for increased gas exchange (see Reptile respiration and Reptile reproduction ). This is where reproductive activity occurs. Some aquatic turtle species can breathe underwater using a process known as cloacal respiration.
What does the name Cloaca mean?
cloaca (noun) (zoology) the cavity (in birds, reptiles, amphibians, most fish, and monotremes but not mammals) at the end of the digestive tract into which the intestinal, genital, and urinary tracts open. sewer, sewerage, cloaca (noun) a waste pipe that carries away sewage or surface water
Does a mammal have a cloaca?
With a few exceptions noted below, mammals have no cloaca. Even in those that have one, the cloaca is partially subdivided into separate regions for the anus and urethra . The monotremes (egg-laying mammals) possess a true cloaca.
What does cloaca on birds look like?
A bird’s cloaca is usually covered with feathers and not able to be seen during casual observation. When a bird expels feces, it will bend slightly forward and raise its tail as it excretes. For a second or two the cloaca may be visible and can be seen as a pale peach, pinkish, or whitish bulge of skin.
What does cloaca mean in medical dictionary?
Cloaca: A common passageway for feces, urine and reproduction. At one point in the development of the human embryo, there is a cloaca. It is the far end of a structure called the hindgut.
