Webb12 apr. 2024 · Facial muscles (Musculi faciales) The facial muscles, also called craniofacial muscles, are a group of about 20 flat skeletal muscles lying underneath the skin of the face and scalp. Most of them originate from the bones or fibrous structures of the skull and radiate to insert on the skin.. Contrary to the other skeletal muscles they … Sharks are cartilaginous fish. The skeleton of a shark is mainly made of cartilage. They belong to the class of Chondrichthyes. In particular, the endoskeletons are made of unmineralized hyaline cartilage which is more flexible and less dense than bone, thus making them expel less energy at high speeds. Each piece of … Visa mer Shark anatomy differs from that of bony fish in a variety of ways. Variation observed within shark anatomy is a potential result of speciation and habitat variation. Visa mer These evolved synapomorphies are crucial for the current sharks lifestyle, for example, the pharyngeal slit changed to become the jaw and gills. The dorsal nerve cord sends signals to the body like it has done before but now the dorsal nerve cord becomes the central … Visa mer Shark teeth are strong and made of enamel. Many sharks have 3 rows of teeth. These teeth are embedded in the gums, not the jaw. Sharks are born with teeth that are constantly being … Visa mer The stomach terminates at the pylorus, that leads to the duodenum, and then to the spiral valve. The spiral valve is a coiled organ, it increases … Visa mer The five chordate synapomorphies are present in chondrichthyes as follows. The five synapomorphies are pharyngeal slit, dorsal nerve cord, notochord, Endostyle, and the post-anal-tail … Visa mer Fins allow for the sharks to be able to guide and lift themselves. Most sharks have eight fins: a pair of pectoral fins, a pair of pelvic fins, two dorsal fins, an anal fin, and a caudal fin. Pectoral fins are stiff, which enables downward movement, lift and guidance. The … Visa mer The liver is a large and oily organ that comprises 25% of the total body weight of the shark. The two purposes of this organ in the shark are to store energy and oil. The liver is a hydrostatic organ. This organ helps with buoyancy since the liver stores oils, decreasing the … Visa mer
Circulatory Anatomy of the Dogfish Shark - Phoenix College
WebbLabel Me! Printouts. Read the definitions, then label the shark diagram below. (Note: not all sharks have all of the fins and spines defined below.) anal fin - the fin on the lower side of the body near the tail (not on all … Webb16 okt. 2024 · Bird Leg Anatomy – Bones, Muscles, Sciatic Nerve, and Shank Vein with Labeled Diagram 03/11/2024 16/10/2024 by anatomylearner The bird leg anatomy exhibits several specialized features compared to that of mammals. cure for dry socket pain
Shark trunk muscles Diagram Quizlet
Webb15 okt. 2013 · They are grouped under Chondrichthyes. Their endoskeleton is composed of hyaline cartilage because of which they use less energy to travel at … View the full … WebbA diagram of all the key muscle groups within the Frog and how they help the Frog function day to day. Animal Corner Discover the many amazing animals that live on our planet. cure for earache in adults