The Anatomy of the Decapod Crustacean Auxiliary Heart

Steinacker, A.

doi:10.2307/1541075

Cited by 33 publications

(22 citation statements)

References 14 publications

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“…The functional significance of this tapered design is unclear, and it is not mentioned in other articles on Callinectes sapidus (Pyle and Cronin, 1950) or other crab species (Pearson, 1908;McLaughlin, 1983;Airriess, 1994;Davidson and Taylor, 1995). At the end of the anterior aorta is an enlarged region, the cor frontale, which consists of tendons and two strips of striated muscle (Steinacker, 1978). Although its exact function has not yet been defined, it is thought to act as an auxiliary heart, aiding hemolymph flow into the supraesophageal ganglion (brain) during periods of acardia (Steinacker, 1978;Davidson and Taylor, 1995); it may also behave as a variable elastic buffer by dampening pressure pulses to the cerebral vessels (Davidson and Taylor, 1995).…”

Section: Discussionmentioning

confidence: 98%

“…At the end of the anterior aorta is an enlarged region, the cor frontale, which consists of tendons and two strips of striated muscle (Steinacker, 1978). Although its exact function has not yet been defined, it is thought to act as an auxiliary heart, aiding hemolymph flow into the supraesophageal ganglion (brain) during periods of acardia (Steinacker, 1978;Davidson and Taylor, 1995); it may also behave as a variable elastic buffer by dampening pressure pulses to the cerebral vessels (Davidson and Taylor, 1995). Despite the anterior aorta's large diameter, hemolymph flow rates in this artery are relatively low.…”

Section: Discussionmentioning

confidence: 99%

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Cardiovascular system of the blue crab Callinectes sapidus

McGaw

Reiber

2001

Journal of Morphology

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The circulatory system of adult blue crabs, Callinectes sapidus, was mapped by either injecting barium sulfate into intact animals followed by radiography or by resin corrosion casts (Batsons Monomer). Seven arteries arise from the heart. The anterior aorta exits from the anterior dorsal surface of the heart and gives rise to the optic arteries; these arteries supply hemolymph to the supraesophageal ganglion and eyestalks. The paired anterolateral arteries also exit from the anterior dorsal surface of the heart and supply hemolymph to the gonads, hepatopancreas, stomach, antennal gland, mandibular muscles, and the hypodermis of the anterior cephalothorax. The paired hepatic arteries exit the heart anteriorly and ventrally and branch profusely within the hepatopancreas. A smaller side branch, the pyloric hepatic artery, supplies hemolymph to the pyloric stomach and midgut. The smallest artery, the posterior aorta, branches off the posterior ventral surface of the heart; it joins with the inferior abdominal artery in the region of the second abdominal segment and these arteries supply hemolymph to the hindgut and abdomen. The largest artery is the sternal artery, which exits from the ventral surface of the heart; the ventral thoracic artery branches off the sternal artery and supplies hemolymph to the chelae, the mouthparts, and to each pereiopod. The present study shows that the circulatory system is highly developed, with arteries dividing into smaller capillary-like vessels that ramify profusely within individual organs. The return vessels, the sinuses, are discrete channels rather than random open spaces, as previously described. The present study refines and advances descriptions of the circulatory system and is discussed in relation to recent work on hemolymph flow in crustaceans.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Cardiovascular system of the blue crab Callinectes sapidus

McGaw

Reiber

2001

Journal of Morphology

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“…On the lopholithodid crabs we examined, the anterior aorta was the smallest diameter artery with very few branches. The cor frontale was situated at the end of the anterior aorta, and consists of tendons and two strips of striated muscle (Steinacker, 1978). Its exact function is unclear.…”

Section: Basic Physiological Variables Measured Inmentioning

confidence: 99%

“…Its exact function is unclear. In Callinectes sapidus and Panulirus interruptus, it is thought to act as an auxiliary heart, aiding hemolymph flow into the supraesophageal ganglion (Steinacker, 1978;Davidson and Taylor, 1995). It may also behave as a variable elastic buffer by dampening pressure pulses to the cerebral vessels (Davidson and Taylor, 1995).…”

Section: Basic Physiological Variables Measured Inmentioning

confidence: 99%

Cardiovascular system of anomuran crabs, genus Lopholithodes

McGaw

Duff

2008

Journal of Morphology

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The cardiovascular systems of Puget Sound king crabs, Lopholithodes mandtii, and brown box crabs, Lopholithodes foraminatus, were mapped using corrosion casting techniques. Both species have a similar external morphology and a very similar cardiovascular system. Seven arteries (five arterial systems) arise from the heart. The small anterior aorta exits from the anterior surface of the heart and supplies hemolymph to the eyestalks and brain region. The pathway of the two sets of paired arteries, the anterolateral arteries and hepatic arteries, is close, and they intertwine with one another during their initial course. The anterolateral arteries exit from the anterior dorsal surface of the heart and supply hemolymph to the hypodermis, cardiac stomach, antennal gland, and mandibular muscles, whereas the hepatic arteries branch profusely within the hepatopancreas. The lithodids are believed to have evolved from hermit crab ancestors; indicative of these evolutionary origins the posterior aorta is well developed and supplies hemolymph to the large abdomen and the gonads. Exiting from the ventral surface of the heart, the sternal artery is the largest in the system. It branches to supply the mouthparts, chelae, and pereiopods. The differing arrangement of this vessel compared with that of the pagurid anomurans is due to the more carcinized (crab-like) morphological features of the lithodid anomurans. The arrangement of vessels supplying the gills is different compared with that of brachyuran crabs; the infrabranchial sinus joins to the afferent gill vessels at their midpoint, rather than along the ventral edge. In general, the circulatory system of the lithodid crabs is somewhat simpler than that of brachyuran crabs, with fewer branching capillary-like networks. Nevertheless, it is still very complex. In accordance with anatomical descriptions of blue crabs and cancrid crabs it would also seem appropriate to classify the lithodid circulatory system as one that is incompletely closed.

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“…The vascular filling with latex is carried out without difficulty and allows reaching the smallest vessels (<1mm). In crustaceans, latex perfusion has been used to trace the course of vessels of the cardiac system (Steinacker, 1978;Gribble, 1994). We used fluid pre-vulcanized latex (Latex Co. SACIF, Buenos Aires, Argentina), which is easy to handle, liquid at room temperature, and solidifies rapidly by dehydration.…”

Section: In Vivo Latex Vascular Castingmentioning

confidence: 99%

Characterization of the cardiac ganglion in the crab Neohelice granulata and immunohistochemical evidence of GABA-like extrinsic regulation

Yang

Carbó-Tano

Freudenthal

et al. 2013

Arthropod Structure & Development

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Please cite this article as: Yang,, M., Carbó Tano,, M., Freudenthal,, R., Hermitte,, G., Characterization of the cardiac ganglion in the crab Neohelice granulata and immunohistochemical evidence of GABAlike extrinsic regulation, Arthropod Structure and Development (2012), doi: 10.1016/j.asd.2012 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ABSTRACTThe aim of the present work is to provide an anatomical description of the cardiac system in the crab Neohelice granulata and evidence of the presence of GABA by means of immunohistochemistry. The ganglionic trunk was found lying on the inner surface of the heart's dorsal wall. After dissection, this structure appeared as a Y-shaped figure with its major axis perpendicular to the major axis of the heart. Inside the cardiac ganglion, we identified four large neurons of 63.7 µm ± 3.7 in maximum diameter, which were similar to the motor neurons described in other decapods. All the GABA-like immunoreactivity (GABAi) was observed as processes entering mainly the ganglionic trunk and branching in slender varicose fibers, forming a network around the large neurons suggesting that GABAi processes contact them.Our findings strengthen previous results suggesting that the GABAergic system mediates the cardioinhibitory response upon sensory stimulation.

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The Anatomy of the Decapod Crustacean Auxiliary Heart

Cited by 33 publications

References 14 publications

Cardiovascular system of the blue crab Callinectes sapidus

Cardiovascular system of the blue crab Callinectes sapidus

Cardiovascular system of anomuran crabs, genus Lopholithodes

Characterization of the cardiac ganglion in the crab Neohelice granulata and immunohistochemical evidence of GABA-like extrinsic regulation

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