haemal การใช้

• The tail has haemal arches, a feature lost in all other modern turtles.
• The water vascular system, haemal system and perihaemal system form the tubular coelomic system.
• Haemal and perihaemal systems are derived from the coelom and form an open and reduced circulatory system.
• It consists of five tail vertebrae, a sacral vertebra, a left humerus, haemal arches and rib fragments.
• Crinoids also possess a separate "'haemal system "', consisting of fluid-filled sinuses within the connective tissue.
• It includes a partial anterior cervical vertebra, multiple caudal vertebrae and five haemal arches, a nearly complete pelvis, and the left femur.
• Many mammals have tiny spleen-like structures known as haemal nodes throughout the body that are presumed to have the same function as the spleen.
• In the caudal region, elongate transverse processes take the place of ribs, and the haemapophyses are paired, one on each side of the haemal canal.
• A central haemal ring surrounds the pharynx next to the ring canal of the water vascular system, and sends off additional vessels along the radial canals beneath the ambulacral areas.
• Phagocytic coelomocytes, somewhat similar in function to the white blood cells of vertebrates, are formed within the haemal vessels, and travel throughout the body cavity as well as both circulatory systems.
• The haemal coelom ( or haemal system, the " haemal " being a misnomer ), a perivisceral coelom, a gonadal coelom and often also a perihaemal coelom ( or perihaemal system ).
• The haemal coelom ( or haemal system, the " haemal " being a misnomer ), a perivisceral coelom, a gonadal coelom and often also a perihaemal coelom ( or perihaemal system ).
• The haemal coelom ( or haemal system, the " haemal " being a misnomer ), a perivisceral coelom, a gonadal coelom and often also a perihaemal coelom ( or perihaemal system ).
• In the larger species, additional vessels run above and below the intestine and are connected by over a hundred small muscular ampullae, acting as miniature hearts to pump blood around the haemal system.
• In the tail, these are attached to chevron-shaped bones called "'haemal arches "', which attach below the base of the spine, and help to support the musculature.
• Echinoderms are an exception having both a coelomic circulatory system ( i . e ., the water vascular system ) and a haemal circulatory system ( i . e ., the haemal and perihaemal systems ).
• Echinoderms are an exception having both a coelomic circulatory system ( i . e ., the water vascular system ) and a haemal circulatory system ( i . e ., the haemal and perihaemal systems ).
• The haemal arches possess a unique morphology, where only the ninth pair and onwards are fused distally, however unlike other diapsids they are not V-or Y-shaped in cranial view, but U-shaped.
• So, while Meyer was unable to come up with an exact number, he noted that " Acteosaurus " has at least 10 cervical vertebrae, and 27 posteroventrally positioned, unfused haemal arches on the vertebrae of the tail.
• It have features of the mosasauroids, with three vertebrae with haemal arches and procoelic centra, that suggest the possibility that these small bones belong to an embryo of this species, although the lack of diagnostic fossils like the skull or teeth prevents a complete identification.