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Medicine LibreTexts

7.3: Lab Activities

  • Page ID
    10701
  • A list of words is provided below that you are expected to identify, learn, and label on the models provided. Note that not all models will have some of the organs/structures, so be sure to find them on an alternate model. You must use all the words provided. Using the colored tape provided, write the number that corresponds to the organ/structure and place them on your model. When complete, notify your TA so they may check your work.

    For each additional station, directions will be provided for the activity.

    Station One: Heart

    Label the models of this station with the number that corresponds to the appropriate structure of the peripheral nervous system using the colored tape. When you are finished, ask your TA to check your labeling. Before leaving the station, remove all the labels you have placed on the model.

    Note: For the following structures, be able to differentiate between left and right halves when applicable.

    Orientation

    #1 apex

    #2 base

    Layers

    #3 pericardium

    #4 epicardium

    #5 endocardium

    #6 myocardium

    Surface Features

    #7 superior vena cava

    #10 left pulmonary artery

    #13 ascending aorta

    #16 posterior interventricular sulcus

    #8 right pulmonary artery

    #11 coronary sulcus

    #14 descending aorta

    #17 epicardial fat

    #9 inferior vena cava

    #12 arch of aorta

    #15 anterior interventricular sulcus

    #18 auricles

    Internal Structures

    #19 papillary muscles

    #23 tricuspid valve

    #27 right atrium

    #31 left ventricle

    #20 pectinate muscles

    #24 bicuspid valve

    #28 left atrium

    #32 interventricular septum

    #21 chordae tendineae

    #25 pulmonary valve

    #29 interatrial septum

    #33 right bundle branches

    #22 trabeculae carneae

    #26 aortic valve

    #30 right ventricle

    #34 left bundle branches

    Coronary Circulation – Arteries

    #35 coronary arteries

    #37 posterior interventricular branch

    #39 circumflex branch

    #41 branch of left coronary artery

    #36 marginal branches

    #38 right pulmonary artery

    #40 anterior interventricular branch

    #42 middle cardiac

    Coronary Circulation – Veins

    #43 coronary sinus

    #45 great cardiac

    #47 left pulmonary

    #44 anterior cardiac

    #46 small cardiac

    #48 right pulmonary

    Station Two: Major Upper Body Vessels

    Label the models of this station with the number that corresponds to the appropriate structure of the peripheral nervous system using the colored tape. When you are finished, ask your TA to check your labeling. Before leaving the station, remove all the labels you have placed on the model.

    Note: For the following structures, be able to differentiate between left and right halves when applicable.

    Arterial Circulation

    #1 brachiocephalic trunk

    #6 vertebral arteries

    #11 anterior cerebral artery

    #16 thoracic aorta

    #2 common carotid arteries

    #7 basilar artery

    #12 anterior communicating artery

    #17 abdominal aorta

    #3 internal carotid arteries

    #8 posterior cerebral artery

    #13 axillary arteries

    #4 external carotid arteries

    #9 posterior communicating artery

    #14 radial arteries

    #5 subclavian arteries

    #10 middle cerebral artery

    #15 ulnar arteries

    Venous Circulation

    #18 brachiocephalic veins

    #22 axillary veins

    #26 medial cubital veins

    #30 azygos vein

    #19 internal jugular veins

    #23 brachial veins

    #27 radial veins

    #31 hemiazygos vein

    #20 subclavian veins

    #24 cephalic veins

    #28 ulnar veins

    #32 accessory hemiazygos vein

    #21 external jugular veins

    #25 basilic veins

    #29 median antebrachial veins

    Station Three: Major Lower Body Vessels

    Label the models of this station with the number that corresponds to the appropriate structure of the peripheral nervous system using the colored tape. When you are finished, ask your TA to check your labeling. Before leaving the station, remove all the labels you have placed on the model.

    Note: For the following structures, be able to differentiate between left and right halves when applicable.

    Arterial Circulation

    #1 suprarenal arteries

    #6 celiac trunk

    #11 external iliac arteries

    #16 anterior tibial arteries

    #2 renal arteries

    #7 common hepatic artery

    #12 internal iliac arteries

    #17 posterior tibial arteries

    #3 gonadal arteries

    #8 splenic artery

    #13 femoral arteries

    #18 fibular arteries

    #4 inferior mesenteric artery

    #9 lumbar arteries

    #14 deep femoral arteries

    #5 superior mesenteric artery

    #10 common iliac arteries

    #15 popliteal arteries

    Venous Circulation

    #19 ascending lumbar veins

    #24 hepatic portal veins

    #30 common iliac veins

    #35 popliteal veins

    #20 gonadal veins

    #25 inferior mesenteric vein

    #31 internal iliac veins

    #36 small saphenous veins

    #21 renal veins

    #26 splenic vein

    #32 external iliac veins

    #37 anterior tibial veins

    #22 suprarenal veins

    #27 superior mesenteric vein

    #33 femoral veins

    #38 fibular veins

    #23 hepatic veins

    #28 inferior phrenic vein

    #34 great saphenous veins

    Station Four: Histology & Differential Blood Count

    Sketch the slides available for today’s lab and specify the magnitude at which you are observing/ sketching. Be sure to identify and label your sketch with the corresponding structures listed beneath each slide.

    Blood Vessels

    Capture-e1533156171797.png Capture-e1533156171797.png
    Vein Artery

    Blood Components

    Capture-e1533156171797.png Capture-e1533156171797.png
    Leukocyte Thrombocyte
    Capture-e1533156171797.png Erythrocyte

    Leukocytes

    Capture-e1533156171797.png Capture-e1533156171797.png
    Basophil Eosinophil
    Capture-e1533156171797.png Capture-e1533156171797.png
    Neutrophil Lymphocyte
    Capture-e1533156171797.png

    Monocyte

    Cardiac

    Capture-e1533156171797.png

    Cardiac muscle

    Differential Blood count

    • Place the blood smear slide under the microscope and focus it to 70x magnification.
    • Once you have isolated a portion of the smear, count the number of each type of blood cell. Record the numbers below

    Note: Platlets may not be visible at this magnification

    • RBC: _________Neutrophils: _________
    • Basophils: _________Eosinophils: _________
    • Monocytes: _________Lymphocytes: _________

    Station Five: Heart Dissection

    • Observe and identify all the surface anatomy of the heart.
    • Orientate the heart so that the ventral side is facing you. The base of the heart should be positioned right side up for dissection.
    • Using your fingers or a probe, find the following at the base of the heart: pulmonary vein, aorta, vena cava, and pulmonary trunk.
    • Using the superior vena cava and pulmonary vein as guides, make a coronal incision using the scapula.
    • Observe and place pins on the following structures: R/L ventricles, R/L atriums, interventricular septum, the valves, tissue layers (cardiac muscle, papillary muscles). Your TA will come around and ask your goup to identify the pins you have placed.
    • Before leaving the station, remove all the pins you have placed.

    *If you are the last table to use this station, be sure to clean off the dissection kits in the lab’s sink.

    Station Six: Flow of Blood and Blood Typing

    As a group, determine the flow of blood through the various structures and vessels of the heart. Be sure to identify where along that path each of the structures on the vocabulary list is located. Use the rest of this page to draw out the pathway.

    As a group, determine the different blood type in this station. Follow the procedure below in order to do so.

    • Obtain a blood-sampling tray and place two drops of the synthetic blood into the wells.
    • Place two drops of the Anti-a “antibody” into the well labeled a. Using a toothpick, mix well and allow to sit undisturbed for one minute. Note any clotting that may occur.
    • Place two drops of the Anti-B “antibody” into the well labeled B. Using a toothpick, mix well and allow to sit undisturbed for one minute. Note any clotting that may occur.
    • Place two drops of the Anti-Rh “antibody” into the corresponding well. With a toothpick, mix well and allow to sit undisturbed for one minute. Note any clotting that may occur.
    • Using your knowledge of the interaction between blood antigens and their corresponding antibodies, determine the blood type. Remember that if an antibody finds its targeted antigens, it causes blood coagulation. If no coagulation occurs, this means that the blood does not contain any of the antigens.