Download Intro to cat dissection

Team Members:_____________________________________________________________________
Group Name: _________________________
Introduction for Cat Dissection
The Task:
You & your partners will work together to complete your dissection of the cat. You will be using your
textbook, the cat specimen & other laboratory equipment to complete your dissection. In your dissection you
will need to pay attention to the following:
*Careful & respectful treatment of your specimen. (Any mutilation of your cat will result in an automatic
zero for each team member & a referral to the principal’s office.)
*Precise dissection technique.
*Accurate identification of anatomical parts of the cat.
*Comparison of cat & human anatomical structures.
*Careful & proper use of equipment.
*Staying on task!!!
*Proper daily clean-up & storage of equipment & specimen.
The Introduction:
1. You will be dissecting your specimen in stages; first the skin & muscular systems, next the digestive &
uroreproductive systems, then the respiratory & circulatory systems, & finally the brain & nervous system.
2. For each stage, your group will have a dissection worksheet explaining the step by step procedures for the
dissection & questions to be answered. Before you do any dissecting, read the dissection worksheet
carefully & completely to prevent any premature mistakes. Remember part of your grade depends on the
accuracy & neatness of your dissected specimen.
3. Lets review some of the terminology: Remember the tissues of the body are classified into 4 primary
types:
A. _________________tissue covers external body surfaces, lines internal body cavities, & forms
glands.
1. ______________________cells can be found in the cheek.
2. ______________________cells can be found in the liver.
3. ______________________cells can be found in the human skin.
4. ______________________cells can be found in small intestine.
5. _____________ ________________cells can be found in the oviduct or respiratory passageways.
B. _____________________tissue supports & binds body parts & may also store reserve energy sources.
1. ________________cartilage connective tissue cells can be found in the trachea.
2. ____________cartilage connective tissue cells can be found in the external ear (aka the__________).
3. ___________________bone connective tissue cells can be found in the long bones.
4. _____________________cells can be found in the subcutaneous tissue.
5. Red & white blood cells (aka_______________&________________) can be found in blood smears.
6. _____________________connective tissue cells can be found in subcutaneous tissue.
7. _____________________connective tissue cells can be found in bone marrow.
C. _________________tissue forms a portion of the body’s structural framework & produces movement.
1. ______________________muscle tissue cells can be found in the visceral organs.
2. ______________________muscle tissue can be found in the skeletal muscles.
3. ______________________muscle tissue can only be found in the heart.
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D. _________________tissue is specialized to conduct electrical impulses in response to stimuli.
1. Nervous tissue can be found in the spinal cord.
4. Terms of Location & Position.
A. Terms referring to the head & rear end fall into three groups: Superior/Inferior; Cranial/Caudal;
Anterior/Posterior
1. ____________________or the upper end; (in humans, closest to the head.)
2. ____________________ or the lower end; (in humans, farthest away from the head)
3. _____________________the head end used for all animals which have a brain case or cranium.
4. _____________________the rear or tail end; used for all animals that have a tail.
5. _____________________the part that goes forward. (the head end as in 4-legged animals) (The front
or belly side of humans)
6. ____________________the part not forward in locomotion. (the rear end of 4-legged animals) (the
back side of humans).
B. Terms referring to the back side & the belly side of a four legged animal:
1. ______________the back side or 4-legged animals, sometimes also applied to the human back.
2. ______________the belly side or underside of 4-legged animals; sometimes also applied to the
human belly side.
C. Terms referring to points on or away from the midline or center. Medial/Lateral; Central/Peripheral;
Superficial/Deep
1. __________________toward the midline of the body or an organ.
2. __________________away from or to the side of the midline of the body or an organ.
3. __________________the center of a spheroidal part or organ.
4. __________________along the outside of a spheroidal part or organ.
5. __________________external or on the outside.
6. __________________internal or on the inside.
D. Terms describing appendages or parts of appendages in reference to the point of attachment to the main
axis of the body or to some specific point or reference inside the body.
1. __________________nearer to the point to root of a limb.
2. __________________farther from the root of a limb.
E. Terms describing body cavities or spaces within the body that contain the internal organs.
1. ____________Body Cavity: cavity which has its embryonic origin along the back side of the animal.
a. __________cavity formed by the skull which contains the brain.
b. __________cavity formed by the vertebrae which contains the spinal cord.
2. ______________cavity which is located in the belly region in both 2-legged & 4-legged animals.
a. ______________Cavity: located above the diaphragm; the chest cavity.
i. _____________cavities: cavities around the lung.
ii. ____________cavity around the heart.
iii. ____________cavity between the lungs, containing the heart, trachea, esophagus, thymus gland.
b. Abdominal (abdominopelvic) cavity: located below the diaphragm; contains the viscera.
i. _________________cavity proper: contains stomach, spleen, liver, gallbladder, pancreas, small
intestine, most of large intestine, kidneys, ureters.
ii. ______________Cavity: contains urinary bladder, sigmoid colon, rectum, internal reproductive
organs.
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