Physio Lab Exam 1

• thermometer

  
• test tube

  
• hemocytometer

  
• capillary tube

  
• anti serum

  
• normal value of neutrophils: 50-70 %
• normal value of eosinophils: 2-4 %
• normal value of lymphocytes: 20-30 %
• normal value of monocytes: 2-8 %
• normal value of basophils: <1 %
• increased neutrophils: acute bacterial infection
• increased eosinophils: parasitic infection
• increased lymphocytes: infectious mononucleosis
• increased basophils: allergic reactions
• banded neutrophils = immature

  segmented neutrophils = mature
• interphase

  
• prophase

  
• metaphase

  
• anaphase

  
• telophase

  
• as molecular weight increases, the rate of diffusion decreases
• hypotonic

  
• hypertonic

  
• isotonic

  
• the solution is hypoosmotic compared to the cell

  the cell is hyperosmotic compared to the cell

  
• the solution is hyperosmotic compared to the cell

  the cell is hypoosmotic compared to the solution

  
• the solution is isoosmotic compared to the cell

  the cell is isoosmotic compared to the solution

  
• positive test for starch:

  • use Lugol's reagent(contains iodine)
  • it turns black
• positive test for glucose:

  • use Benedict and heat
  • it turns orange
• how to read a blood type slide:

  1. place few drops of blood type A, B, Rh
  2. put few drops of antiserum
  3. if agglutination occurs, then it is that blood type
  4. if no agglutination occurs, it is Type O-
• how to read a hemoglobin strip

  1. use absorbent paper from tallquist test booklet
  2. drop blood sample onto center of paper
  3. once it loses its glossiness, compare with color scale
• how to read hematocrit:

  1. plugged end on the 0% line and plasma end lines up with 100% line
  2. read % value of packed RBCs
• calculations for RBCs:

  number/box x 10,000 = ____ milli/mm^3
• homeostatic feedback loop for heart rate:

  1. stimulus: decrease in heart rate
  2. sensor: baroreceptors in aortic arch and carotid sinus
  3. integrator: medulla oblongata
  4. effects: arteries and heart
  5. response: vasoconstriction and increased heartbeat
  6. result: increased heart rate
• homeostatic feedback loop for temperature:

  1. stimulus: increased temperature
  2. sensor: thermoreceptors in skin
  3. integrator: hypothalamus
  4. effectors: sweat glands in skin and blood vessels in skin
  5. response: increased sweat and vasodilate
  6. results: decreased temperature
• disturbance of homeostatic feedback loop for temperature:

  hyperthermia
• disturbance of homeostatic feedback loop for heart rate: panic attack
• what is the order of WBC's in the blood?

  1. neutrophils
  2. lymphocytes
  3. monocytes
  4. eosinophils
  5. basophils
• neutrophils

  
• lymphocytes