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Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim.Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported only by muscles.
The heart is a muscular organ found in humans and other animals.This organ pumps blood through the blood vessels. [1] Heart and blood vessels together make the circulatory system. [2]
Ombilinichthys yamini is the oldest known gourami. The family Osphronemidae is divided into the following subfamilies and genera: [3] [4] family Osphronemidae van der Hoeven, 1832
A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits.Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians.
Oarfish are large and extremely long pelagic lampriform fish belonging to the small family Regalecidae. [1] Found in areas spanning from temperate ocean zones to tropical ones, yet rarely seen, the oarfish family contains three species in two genera. [2]
The atrium (Latin: ātrium, lit. 'entry hall'; pl.: atria) is one of the two upper chambers in the heart that receives blood from the circulatory system.The blood in the atria is pumped into the heart ventricles through the atrioventricular mitral and tricuspid heart valves.
Cardiac muscle (also called heart muscle or myocardium) is one of three types of vertebrate muscle tissues, the others being skeletal muscle and smooth muscle.It is an involuntary, striated muscle that constitutes the main tissue of the wall of the heart.
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia (/ ˌ æ n ɪ ˈ m eɪ l i ə / [4]).With few exceptions, animals consume organic material, breathe oxygen, have myocytes and are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development.