The cat notes! To save this to disk, select File->Save as. To print this, click the print button or select File->Print. (c)2000 by Diablo, redistribution encouraged. **** *** * * * * * * * * * * * * * * * * * * **** **** Diablo Group ----------------------------------------------------------------------//// A Diablo Group Joint For that GD cat test: Mammals: Sizes from 2-gram shrew to 115-ton blue whale Vertebrates include fish, amphibians, reptiles, and birds. Mammals have skin covered with hair or fur and mammary glands in the female to nurse the young. Monotremates (order Monotremata, platypus, spiny anteater) lay reptilian eggs, and the hatched young get milk from the mammary glands. Marsupials (order Marsupiala, kangaroos, opossums) are viviparous (live young), but the young are born at an early stage and develop in a pouch and attach to mammary glands. Eutheria (the rest of the mammals) embryos are retained until a higher stage of development. the cat's scientific name is Felis domestica, and it belongs to order Carnivora (lions, tigers, wolves, dogs) cats are associated with civilized man as pets that catch mice and rats the egyptians considered cats sacred cats live about 15 years, gestation period is about 9 weeks, 2-5 born to an average litter the muscles and internal organs are clearly visible, nerves and blood vessels are readily traced Anatomical terms: Directions, positions: Do A O / Po +---+ | | V A: Anterior/cranial: toward the head Po: Posterior/caudal: toward the tail Do: Dorsal/superior : toward the backbone V: Ventral/inferior: toward the belly Lateral : toward the side Medial : toward the midline Proximal : lying near the point of reference Distal : lying further from the point of reference Planes/sections through the body: T: transverse: perpendicular to the long axis of the body, cross section S: sagittal : a longitudinal section dividing the body into sides F: Frontal : a longitudinal section dividing the body into upper (dorsal) and lower (ventral) parts (coronal view) T: \ / O |-| S: O / +---+ | | | | F: O---\ | | External features: Areas of the body: head(cranial) neck(cerical) trunk(thoracic, abdominal) tail(caudal) Appendages: Forelimb (from the base): brachium; antebrachium; wrist, palm, digits (manus) Hind limb (ditto): thigh; shank (crus); ankle, sole, digits (pes) each toe has a hinged, retractable claw; tori are epidermal thickenings on the walking surfaces of the feet that form cushions where the cat walks (7 tori/front paw, 5/hind paw) external nares-nostrils pinnae-ear flaps nictitating membrane-third eyelid in the middle corner of the eye, goes over the eyeball to moisten and cleanse the eye vibrissae-whiskers papillae of mammary glands (teats) are arranged in two rows; there are 5 pairs in the cat; the papillae are well-developed in preggo/nursing cats axilla-between the thorax and arms (armpits?) perineum-the area around the urogential and anal openings the anus is ventral to (below) the base of the tail in males the nutsac (scrotum) is anterior to (in front of) the anus in females, the urogenital aperture is located below the anus Tips to a good dissection that doesn't turn out like TV dinner mashed potatoes (or a Pokemon episode): Be sure you know what you are cutting before you cut it and READ THE F##KING DIRECTIONS before you dissect the animal; use the disecting needle freely, and use the scalpel sparingly Don't ask questions unless the answer is not in the f##king manual. RTFM! If you can't find a structure, ask the instructor. The veins can differ in different cats, as well as other organs. Odors can be washed off more readily if you rub vaseline into them or put a nice, stiff, dried lather of soap on the hands. You will need a good scalpel, 2 forceps (one rat-tooth, one regular), a good pair of scissors with a blunt tip, about 6-8 dissecting needles, and a blunt-tipped probe. Hope this helps! Empty brains are easier to wash. A Diablo Group Joint by Diablo