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Intro to Frog Dissection

Intro to Frog Dissection. Miss Colabelli. Directional Terms. Anterior (ventral) = front Posterior (dorsal) = back Superior (cranial) = Upper Inferior (caudal) = Lower Medial = midline. Medial. Directional Terms. Lateral = away from midline

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Intro to Frog Dissection

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  1. Intro to Frog Dissection Miss Colabelli

  2. Directional Terms • Anterior (ventral) = front • Posterior (dorsal) = back • Superior (cranial) = Upper • Inferior (caudal) = Lower • Medial = midline Medial

  3. Directional Terms • Lateral = away from midline • Intermediate = between medial and lateral • Proximal = point of origin • Distal = away from origin • Superficial = external/surface • Deep = internal/beneath surface

  4. Regional Terms • Cephalic = head • Frontal = forehead • Orbital = eye • Nasal= nose • Buccal= Cheek • Occipital = base of skull

  5. Regional Terms • Thoracic = chest cavity • Sternal= breast bone • Axillary = armpit • Brachial = arm

  6. Regional Terms • Carpal = wrist • Digital = fingers/toes • Vertebral = spinal

  7. Body Planes • Midsagittal – separates into equal right and left portions • Midline of the body • Parasigittal – separates into unequal right and left portions

  8. Body Planes • Frontal – parallel to axis that separates body into anterior and posterior • Transverse – Separates the body into superior and inferior portions • Oblique – separates the body into diagonal portions

  9. Body Cavities • Dorsal cavity – contains central nervous system • Cranial cavity – brain and spinal cord • Ventral cavity – contains respiratory, cardiac, digestive, urinary, and reproductive organs • Thoracic cavity – within rib cage, floor is diaphragm (contains lungs and heart) • Abdominopelvic cavity – occupies much of lower front torso (contains stomach, liver, spleen, kidneys, most of intestine, urinary bladder, most of reproductive system)

  10. Lab Safety • During dissection: • WEAR GOGGLES AND GLOVES AT ALL TIMES!! • Wear closed toes shoes • Hair tied back • Clothing is not hanging or loose (bring a t-shirt to throw over clothes) • To maintain a clean station, have one person in group be the reader and recorder while the other dissects the frog

  11. Cleaning Up • Make sure your lab area is cleaned before leaving class • To maintain freshness of your frog, wet a paper towel and wrap the frog in it, place the wrapped frog into a zip lock bag for the next day • Rinse off all dissecting tools and DRY THEM • Put all tools away and then remove gloves and goggles • Wash your hands!

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