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Rostrum (anatomy)

 

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Rostrum (anatomy)



 
 
A rostrum (Latin
Latin

Latin is an Italic language, historically spoken in Latium and Ancient Rome. Through the Military history of the Roman Empire, Latin spread






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A rostrum (Latin
Latin

Latin is an Italic language, historically spoken in Latium and Ancient Rome. Through the Military history of the Roman Empire, Latin spread throughout the Mediterranean and a large part of Europe....
 for "beak") is an anatomical
Anatomy

Anatomy is a branch of biology that is the consideration of the body plan. It is a general term that includes human anatomy, animal anatomy and plant anatomy ....
 structure resembling a bird's beak
Beak

The beak, bill or rostrum is an external anatomical structure of birds which, in addition to eating, is used for Personal grooming#In animals, manipulating objects, killing prey, probing for food, Courtship#Courtship in the animal kingdom and feeding their young....
, such as the snout of a crocodile
Crocodile

A crocodile is any species belonging to the family Crocodylidae . The term can also be used more loosely to include all members of the order Crocodilia: i.e....
 or dolphin
Dolphin

File:Bottlenose_Dolphin_KSC04pd0178.jpgDolphins are marine mammals that are closely related to whales and porpoises. There are almost forty species of dolphin in seventeen genus....
 or the foremost extension of a crustacean's
Crustacean

Crustaceans are a large group of arthropods, comprising almost 52,000 described species , and are usually treated as a subphylum . They include various familiar animals, such as crabs, lobsters, crayfish, shrimp, krill and barnacles....
 carapace
Carapace

A carapace is a Dorsum section of the exoskeleton or shell in a number of animal groups, including arthropods such as crustaceans and arachnids as well as vertebrates such as chelonians, order Testudines, turtles and tortoises....
. Since the rostrum is typically located about the thorax
Thorax

The thorax is a division of an animal's body that lies between the head and the abdomen.In mammals, the thorax is the region of the body formed by the sternum, the thoracic vertebrae and the ribs....
 of an arthropod
Arthropod

Arthropods are animals belonging to the Scientific classification Arthropoda , and include the insects, arachnids, crustaceans, and others....
, it is differentiated from the cauda or tail
Tail

The tail is the section at the rear end of an animal's body; in general, the term refers to a distinct, flexible appendage to the torso. It is the part of the body that corresponds roughly to the sacrum and coccyx in mammals and birds....
.

The anterior end of the corpus callosum
Corpus callosum

The corpus callosum is a structure of the mammalian brain in the longitudinal fissure that connects the left and right cerebral hemispheres. It also facilitates communication between the two hemispheres....
 in the human brain is continuous with a region called rostrum
Rostrum of corpus callosum

The anterior end of the corpus callosum is named the genu, and is bent downward and backward in front of the septum pellucidum; diminishing rapidly in thickness, it is prolonged backward under the name of the rostrum, which is connected below with the lamina terminalis....
.

The western rattlesnake crotalus viridis
Crotalus viridis

Crotalus viridis is a venomous snake Crotalinae species native to the western United States, southwestern Canada, and northern Mexico. Two subspecies are recognized, including the nominate subspecies described here....
 is the only rattlesnake that has four scales touching its rostrom, and can be thus identified.