EXERCISE NO.7 Flashcards
Title
Physiology of Muscle Contraction
solution used in the experiment
Ringer’s solution is a solution of several salts dissolved in water for the purpose of creating an isotonic solution relative to the body fluids of an animal.
grams of ingredient needed for Ringer’s solution (6)
- 0.19 g KCl
- 6.72 g NaCl
- 0.57 g Na2HPO4
- 0.12 g NaH2PO4
- 0.20 g MgCl2
- 0.26 g CaCl2
modified ringer’s solution
normal ringer’s solution
+ 0.12 g CaCl2 (800 ml ringer’s)
+ 0.37 g MgCl2 (200 ml ringer’s)
modified ringer’s solution is low ___ and high _____
low Ca
high Mg
Paralyzed the toad by _____.
pithing
When the toad is already paralyzed, lift the skin of the lower abdomen by using the forceps and then cut open with a sharp scalpel blade to access the ____________
abdominal muscle sheet
The heart is enveloped by a __________.
thin pericardium
Expose the _______ of the small intestine from the terminal of the duodenum by lifting with the aid of a hook or forceps.
jejunum
If the toad is well fed, the intestine will be doing an ________ __________.
active peristalsis
Do not use _______ in cutting the sciatic nerve.
metal
A ____ is visible from the veins and artery, this is also where the nerve is.
purple
the nerve is a _____, tendonous strip.
white
Work carefully without damaging the sciatic nerve and keep it intact with the undamaged _________ so that a ______________ complex is obtained.
gastrocnemius
sciatic nerve-gastrocnemius complex
Using the dry cell battery with the electrical wires, let one end of the two be securely attached to the positive (_____) polarity of the battery, the _______ wire to the negative polarity
red - positive
black - negative
