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Legs, wings, arms, fins, flippers, antennae. Paired legs. Amnion. Membrane that holds in the amniotic fluid surrounding the embryo, may or may not ...
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GAP JUNCTION COMMUNICATION IN THE DEVELOPING ZEBRAFISH NOTOCHORD ... Zebrafish embryos of stages 10 somites (14 embryos) or 24 hr (27 embryos) were ...
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... distinction of sclerotome and derma-myotome depends upon notochord-derived signals N-cadherin ectopic notochord N-cadherin patterning disrupted locally ...
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Figure 34.2 Echinodermata Cephalochordata ANCESTRAL DEUTEROSTOME Chordates Urochordata Notochord Myxini Craniates Common ancestor of chordates Petromyzontida
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... notochord Central part of nervous system A hollow tube made up of neurons Extends entire length of amphioxus and jawless fishes Always dorsal to notochord ...
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Vertebrates Fishes, Amphibians, Birds, Reptiles, Mammals Biology B Nonvertebrate Chorodate Choradate Dorsal hollow nerve cord Notochord Pharyngeal pouches Tail that ...
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Chordates Characteristics common to ALL chordates Dorsal nerve cord Pharyngeal slits Notochord Tail Dorsal nerve cord Pharyngeal Slits The wall of the pharynx is ...
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Chordate features dorsal hollow nerve cord, notochord, gut tube, ... Dorsal mesentery. Ventral mesentery. Test yourself... Trans-segmental structures versus ...
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II) Fish. A) Agnatha: jawless fish. 1) suction mouth. 2) notochord remains. a)lack bony skeleton cartilage. 3) ex. lamprey and hagfish *
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Comparative Anatomy ... limbs of fishes and marine mammals Parallelism ... notochord and nervous system disappear Resembles invertebrate Both urochordates ...
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Chordates Characteristics common to ALL chordates Dorsal nerve cord Pharyngeal slits Notochord Tail Dorsal nerve cord Pharyngeal Slits The wall of the pharynx is ...
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Tunicate notochord. 4Trademarks. of Phylum Chordata. 3. Pharyngeal Gill Slits. or Pouches ... Blue Bell tunicate. Subphylum Cephalochordata. Lancelets (Amphioxus) ...
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Phylum Chordata Phylum Chordata Invertebrate chordates Tunicates and lancelets Have notochord, gill slits Vertebrates fish, amphibians, reptiles, birds, mammals ...
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The Vertebrates Vertebrate Characteristics Vertebrae (backbone) Notochord (flexible dorsal rod) Nerve cord (hollow) with brain Three layers of cells as an embryo ...
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Chordates and Vertebrates At one time in their development ALL chordates have: Notochord flexible, rod-like structure along the back of the organism
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Animals Vertebrates Vertebrates Five Classes Endoskeleton Support Protect Attachment Notochord Five Classes Fish Amphibians Reptiles Birds Mammals Fish Live in water ...
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... Body Plan Tube within a tube Bilateral Symmetry Dorsal Hollow Nerve cord Notochord and vertebra Segmentation Pharnygeal gill slits Body Planes Anatomical ...
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SUBPHYLUM VERTEBRATES 1. 99% of all chordates 2. Contain a supporting backbone called a vertebral column (replaces the notochord during embryo development)
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Vertebrates Phylum Chordata 4 basic characteristics: Notochord supporting rod dorsally located, below the nerve cord, replaced by vertebral column in most ...
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Vertebrates in the Sea & on Land Section 32.1 Adaptations of Vertebrates Chordates with a backbone Made of vertebra segments Completely replaces the notochord ...
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Comparing Vertebrates The Chordates A chordate is an animal that has, for at least some stage of its life, a dorsal, hollow nerve cord; a notochord; pharyngeal ...
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Fishes and Amphibians Chapter 30 Biology Auburn High School Pgs. 816 837 30.1: Fishes Pg. 817 826 Characteristics of Fishes Notochord; Gill slits Muscle ...
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Jawless Fishes Lampreys and hagfishes both lack vertebrae and have notochords as adults Lampreys are filter feeders as larvae and parasites as adults Hagfishes have ...
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Survey of Animals from the Phylum Chordata Sub Phylum Vertebrata Common Chordate Features Notochord: a rod of stiffened tissue supporting the body (later develops ...
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Phylum Chordata Charactertistics of Chordates All chordates possess a notochord. Long felxable rod between gut & nerve cord Runs most of length of animal
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Vertebrate Characteristics Kingdom Animalia; Phylum Chordata; Subphylum Vertebrata Chordata Characteristics Dorsal hollow nerve cord Notochord ( back cord ...
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Medical University Department of Histology, cytology and embryology Gastrulation is finished with the formation of axial organs neural tube, notochord, somites ...
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Protochordates include Urochordates = Tunicates = Sea squirts (See figure 2-2 in text) Underappreciated beauty of tunicates Notochord Dorsal hollow nerve cord Pharynx ...
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Vertebrates are Animals with a backbone Chordate What are they- An animal that has, for al least some stage of its life, a dorsal hollow nerve cord; a notochord ...
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Vertebrates Fishes, Amphibians, Birds, Reptiles, Mammals Biology B Nonvertebrate Chorodate Choradate Dorsal hollow nerve cord Notochord Pharyngeal pouches Tail that ...
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Vertebrates Evolution and Diversity * * * Chordates Notochord: longitudinal, flexible rod located between the digestive and the nerve cord Dorsal, hollow nerve cord ...
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Nervous System Fishes nervous system is set up similar to the human s, ... Skeletal Structure Fish are chordates and they have a - notochord ...
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Vertebrate Review Questions Which fish is a parasite? Lamprey Shark Skate Bass What is a shark s skeleton composed of? Bone Chitin Cartilage Notochord Which fish is ...
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Vegetal Pole yolk region. Animal Pole relatively yolk ... Biceps muscle. Notochord. Brain. Kidney. Spinal cord. Skin. Gastrulation in Macrolecithal eggs ...
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Rare malignant tumors that arise from ectopic notochordal remnants ... Complete resection followed by ... Surgical resection is difficult given ...
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Chordates and Fishes Characteristics of Chordates A chordate is an animal that in some stage of development has: Notochord- dorsal rod of specialized nerves A dorsal ...
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Destroyed by the acidic vaginal environment. Fail to make it through the cervix ... First evidence is the appearance of the notochord ...
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Human embryo (5 weeks) Notochord attachment site for muscles ... Platypus. P. Chordata. Mammalia. Monotremes. Echidna. P. Chordata. Mammalia. Marsupials ...
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Chordates and Fish Characteristics of Chordates A chordate is an animal that in some stage of development has: Notochord- dorsal rod of specialized nerves A dorsal ...
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CHORDATA. CHORDATE CHARACTERISTICS. NOTOCHORD. DORSAL TUBULAR NERVE CORD. PHARYNGEAL GILL POUCHES ... UROCHORDATA --- TUNICATES OR SEA SQUIRTS. CEPHALOCHORDATA ...
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... notochord, caudal fin rays, and what appeared to be a postanal tail and a dorsal ... hypocercal tail (with an extended ventral lobe) which suggest a trend towards ...
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... nerve cord; a notochord; pharyngeal pouches; and a tail that extends ... Notochord: long supporting rod that runs through the body just below the nerve cord ...
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Biology 223. Human Anatomy and Physiology. Week 1; Lecture 1; Monday. Dr. ... Chordate features dorsal hollow nerve cord, notochord, gut tube, certain blood ...
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The Animal Kingdom : The Chordates Day 3 Recall: All chordates have a notochord during their embryological development that usually turns into a spinal column.
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Back muscles Sclerotome Neural tube produces NT-3 and Wnt proteins that influence somite cell fate Notochord produces sonic hedgehog to influence sclerotome fate A A ...
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Core of rooster comb. Tissue components: Stellate fibroblasts, amorphous ground substance ... The arrow points at the notochord. Cross-section of the notochord ...
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ectoderm. neural tube. gut cavity. notochord. Within the gastrula, one can see ... ectoderm. What comes ... Ectoderm and mesoderm interaction in a chick ...
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Which is larval, which is mature? Chordata. Urochordata. Tunicate. A) mature, B) larval. A. B. Dorsal nerve cord. notochord. Pharynx with gill slits. Phylum? ...
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The notochord (derived from mesoderm, defines axis of embryo, later replaced by ... Motor (efferent): conduct impulses from the CNS to organs/muscles ...
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Phylum Chordata 4 common characteristics Notochord dorsal rod made of cartilage (flexible/firm), support for body dorsal nerve chord group of nerves forming a ...
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Bone tumors are very diverse in morphology and biological ... A new bone tumor in the elderly is more likely to be malignant ... Arises from notochord remnants. ...
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Sessile filter feeders. Ciliated pharynx. NO notochord ... Sessile filter feeders. Ciliated tentacles and pharynx. Filtered food passes into intestine ...
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Draw out embryonic development from 1-cell stage, cleavage, blastula, gastrula, ... (urochordate (tunicate) (notochord in larvae), hydra (cnidaria, invertebrate) ...
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Included are 48,000 species the majority of which are vertebrates ... The notochord is contractile, formed as a longitudinal series of flattened discs ...
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Develops from midline located just above the notochord ... Development of C. elegans, a Nematode. Homeotic Genes. Homeotic Genes control pattern formation ...
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Notochord: longitudinal, flexible rod located between the ... Monotremes (egg-laying): platypus; echidna. Marsupials (pouch): opossums, kangaroos, koalas ...
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