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Sagittal section- Cutting down the middle of body/ parallel to long body ofFrontal Section-Longitudinal plane that divides ventral and dorsalTransverse section- x.s or Cross section
Thoracic cavity- Region most cranial of coelom. Separated from caudal by diaphragmnCoelom- contains digestive tract and other internal orgs. Formed between layers of mesoderm Abdominal- Most caudal. Opposite of ThoracicPleural cavities- LungsPericardial- heart
Cerebellum-the part of the brain at the back of the skull in vertebrates. Its function is to coordinate and regulate muscular activity.Cerebral Hemisphere- each of the two parts of the cerebrum (left and right) in the brain of a vertebrate.Liver- liverdetoxifies chemicals and metabolizes drugs. As it does so, the liversecretes bile that ends up back in the intestines. The liveralso makes proteins important for blood clotting and other functions.Trachea- Anterior -a large membranous tube reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and conveying air to and from the lungs; the windpipe.
Spleen-an abdominal organ involved in the production and removal of blood cells inmost vertebrates and forming part of the immune system.Cecum-a pouch connected to the junction of the small and large intestines breaks down cellulose, ingest feces for copographyStomach-the internal organ in which the major part of the digestion of food occurs, being (in humans and many mammals) a pear-shaped enlargement of the alimentary canal linking the esophagus to the small intestine.Kidney- The kidneysare two bean-shaped organs, each about the size of a fist. They are located just below the rib cage, one on each side of the spine. Everyday, the two kidneysfilter about 120 to 150 quarts of blood to produce about 1 to 2 quarts of urine, composed of wastes and extra fluidAbdominal Aorta- abdominal aortais the largest artery in the abdomenthat provides blood to the organs and tissues of the abdomen, pelvis, and legs. It descends from the thorax as a continuation of the thoracic aortaand branches several times to form the major arteries of the abdomen.Urinary bladder- Collects urine that is excreted and filtered by kidneys Uterus- the organ in the lower body of a woman or female mammal where offspringare conceived and in which they gestate before birth; the womb.Fallopian Tubes- in a female mammal) either of a pair of tubes along which eggs travel from the ovaries to the uterus. Ovary- Posterior, Produces eggs for reproduction Arteries- Stained with red dye Veins- stained with blue dye Lab 7: Animal DevelopmentBiologist use model organisms to study development. Sea urchin (Echinodermata) External fertilization2 haploid gametes= diploid zygotesForm fertilization membrane- block polyspermy, Outermost ring
●Embryos and Development -cells formed from the division (cleavage) of the zygote differentiate ❏Sea Urchin-embryo is transparent -graze on algae -male and female shed gametes into open sea (fertilization external)●Major stages in animal embryonic development 1. F