Branchial heart - Wikipedia
Branchial hearts are accessory pumps that supplement the action of the systemic heart in a cephalopod 's body. They are myogenic in nature. [1] Branchial hearts are always in pairs located at the base of the gills.
How many hearts does an octopus have? | New Scientist
However, octopuses compensate for this by having three hearts – two “branchial” hearts, which receive deoxygenated blood from around the body and pump it through the gills, and one “systemic”...
Pharyngeal arches - Embryology
pharyngeal arch - (branchial arch) a structure that forms in the cranial region of the embryo having contributions from all germ layers. In humans, the arches appear in week 4 ( GA week 6) in a rostra-caudal sequence and are numbered (1, 2, 3, 4, and 6).
Branchial Heart - an overview | ScienceDirect Topics
Overview. The heart is located ventrally in a fish, in front of the pectoral fins and peritoneal (gut) cavity, and generally behind the gill structures (Fig. 1). The terms branchial heart and systemic heart are also used because the heart pumps blood first to the gills (branchial) and then directly to the systemic circulation, i.e., both the ...
Branchial heart Definition & Meaning - Merriam-Webster
The meaning of BRANCHIAL HEART is a muscular enlargement of a vein of a cephalopod that contracts and drives the blood into the gills.
Embryology, Branchial Arches - StatPearls - NCBI Bookshelf
2023年8月8日 · The branchial arches are embryologic structures that develop into anatomic structures in the adult human. The term “branchial” derives from the Latin “branchia,” meaning gills, and is used to describe the development of many species of fish and amphibia.
The Contribution of the Branchial Heart to the Accessory ...
Experimental and anatomical observations upon the Octopoda suggest that the branchial hearts are not the sole contributors to the increase in venous blood pressure between the anterior vena cava and the afferent branchial vessel.