What purpose do heart valves serve?
What will be an ideal response?
Keep blood flowing in one direction.
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You are constructing working models of the heart for extra credit. Your first attempt failed because the cells separated from each other during beating. What structures did you omit, and why did this allow the heart to fall apart? You omitted the gap junctions in your second attempt. How would a real heart fail to function normally without gap junctions?
What will be an ideal response?
__________ is a respiratory condition in livestock that is transmitted through transporting in trailers that have not been disinfected
Fill in the blank(s) with correct word
The refractory period in cardiac muscle is much shorter than the refractory period in skeletal muscle to ensure that the heart can quickly be restimulated to produce alternate periods of contraction and relaxation
Indicate whether the statement is true or false
Sometimes called the "tailor's muscle" because it was used by tailors to sit cross-legged, the muscle that originates on the ilium and crosses both the hip and the knee joint is the ________,
Fill in the blank(s) with the appropriate word(s).