Answer Sheet for Practice Question 1. Put the following numbers into scientific notation: Show 2. 40 cc
= 0.04 liters 4. Of the following solutions, which would you give intravenously to a dehydrated patient? 0.5 - 0.9% NaCl - an isotonic solution won�t damage blood cells or tissues, and a slightly 5. What is the total magnification of a microscope using a 45X objective (ocular 7. How many grams of KCl do you need to make: 8. How many grams
of dextrose do you need to make 22 mls of 15 % dextrose solution? 9. What is the osmolarity of body fluids? This value of osmolarity is roughly equivalent to A. Is bag 1 hypotonic, isotonic or hypertonic to the fluid in the beaker? B. Why does the rate of weight gain/loss decrease as the experiment progresses? 11. If you put 10% NaCl solution on red blood cells, what happens to the cells? Why? 12. Which of the following bones are part of the axial skeleton, and which are part of the 13. What bone or bones make up the following structures: wall of the orbits: lacrimal, ethmoid, sphenoid, maxilla, frontal, zygomatic, palatine temples: temporal, parietal, sphenoid, frontal cheek bones: zygomatic, temporal jaw: mandible only forehead: frontal 14. Fill in the following table: 15. Fill in the table below: vision rods/cones optic nerve occipital
16. Name one synergist and one antagonist muscle for each of the following: Biceps brachii brachialis Triceps brachii 17. Identify the cranial nerve(s) that might be damaged give the following A. Weakness of shoulder muscles on right side right spinal accessory C. Lack of sensation around lower jaw on right side, and lack of facial 18. Name a function (or something that is associated with) the following structures: A. Corpora quadrigemina visual and auditory reflexes; mesencephalon C. dorsal root ganglion contains cell bodies of sensory neurons in spinal D. cranial nerve VIII vestibulocochlear nerve - hearing and balance E. cochlea organ in inner ear, lined with hair cells, distinguishes sound F. semicircular canals in 3 dimensions, senses movement of head/body
G. corpus callosum white fiber tract connecting the 2 cerebral H. pons
large fiber tract in mesencephalon, contains ascending and J. Broca�s area (also, where is it?) left frontal lobe - speech K. Wernicke�s area (also, where is it?) left temporal lobe - speech Q. cranial nerve X vagus - sensory
and motor to thoracic and abdominal What happens when blood cells are placed in 0.9% NaCl solution?NaCl is isotonic to the red blood cell at a concentration of 154 mM. This corresponds with NaCl 0.9%. The red blood cell has its normal volume in isotonic NaCl. Erythrocytes remain intact in NaCl 0.9%, resulting in an opaque suspension.
What is the effect of 0.9 saline on the cells?The impact of 0.9% NaCl on mesothelial cells is manifested in destabilized tissue regeneration, which supposedly initiates adhesion formation.
What is happening to a cell if there seems to be no change?What is happening to the cell since there seems to be no change? since the solution is isotonic there is no net movement of water.
What effect does NaCl have on red blood cells?The effects of hypertonic NaCl.
The red blood cells, therefore, lose their normal biconcave shape and shrink or crenate.
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