Placing a red blood cell in an extremely hypertonic solution leads to hemolysis.
Answer the following statement true (T) or false (F)
False
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Bronchi are larger in diameter than bronchioles
Indicate whether the statement is true or false
Single-unit smooth muscle is ______ rather than requiring nervous stimulation
Fill in the blank(s) with correct word
This muscle extends across the inner surface of the thoracic cage and attaches to ribs 2?6. It helps depress the ribs.
A. External intercostal B. Scalene C. Transversus thoracis D. Internal intercostal E. Serratus posterior inferior
Epinephrine activates the cyclic AMP pathway in liver cells. In this example, epinephrine is a ____________ and cAMP is a _____________
A. ligand, receptor B. first messenger, hydrophobic hormone C. second messenger, ion channel D. first messenger, second messenger E. enzyme, second messenger