In many respects, fish anatomy is different from mammalian anatomy. However, it still shares the same basic body plan from which all vertebrates have evolved: a notochord, rudimentary vertebrae, and a well-defined head and tail. Fish have a variety of different body plans. At the broadest level, their body is divided … See more Fish anatomy is the study of the form or morphology of fish. It can be contrasted with fish physiology, which is the study of how the component parts of fish function together in the living fish. In practice, fish anatomy and … See more The head or skull includes the skull roof (a set of bones covering the brain, eyes and nostrils), the snout (from the eye to the forward-most point of the upper jaw), the operculum or See more Jaw The vertebrate jaw probably originally evolved in the Silurian period and appeared in the Placoderm fish which further diversified in the Devonian. Jaws are thought to derive from the pharyngeal arches that … See more Fish reproductive organs include testes and ovaries. In most species, gonads are paired organs of similar size, which can be partially or totally fused. There may also be a range of … See more There are two different skeletal types: the exoskeleton, which is the stable outer shell of an organism, and the endoskeleton, which forms the support structure inside the body. The … See more Fish are vertebrates. All vertebrates are built along the basic chordate body plan: a stiff rod running through the length of the animal (vertebral column or notochord), with a hollow tube of nervous tissue (the spinal cord) above it and the gastrointestinal tract below. … See more Intestines As with other vertebrates, the intestines of fish consist of two segments, the small intestine and the large intestine. In most higher vertebrates, the small intestine is further divided into the duodenum and other parts. In fish, … See more WebDec 8, 2024 · The European seabass is one of the most important species of the Mediterranean, specifically Greece. Individuals with different numbers of vertebrae have been reported. This number ranges from 24 to 26 vertebrae. In this study a sample of 73 individual seabass were collected from fish farms and divided into three age groups. The …

Dinocephalosaurus - Wikipedia

WebJun 24, 2024 · The axial skeleton of all vertebrates is composed of individual units known as vertebrae. Each vertebra has individual anatomical attributes, yet they can be classified in five different groups, namely cervical, thoracic, lumbar, sacral and caudal, according to shared characteristics and their association with specific body areas. Variations in … WebThe skin of a fish serves many functions. It aids in maintaining the osmotic balance, ... being moved by the trunk musculature. The body musculature is usually arranged in rows of … dunn\u0027s hardware reese michigan

Spinosaurus is not an aquatic dinosaur eLife

WebThe trunk vertebrae each have rib attachments which fuse with the dermal bone plates (Figs. 3.8-3.11). There is no sternum. In contrast to the fused trunk, the cervical and caudal vertebrae are free. The neck and tail are highly flexible and have well-developed epaxial and hypaxial muscles (Evans 1986). Cervical vertebrae. The eight cervical ... WebTrunk & tail muscles of fish: Axial musculature consists of a series of segments separated by myosepta. Myosepta serve as origins & insertions for segmented muscles; Myomeres are divided into dorsal & ventral … dunn\u0027s funeral home bowling green oh