What serves as the link between the hydrophilic hormone serving as the first messenger and the second messenger?
A.)protein kinase
B.) G-protein
C.)adenylate cyclase
D.)cAMP
B.) G-protein
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The ____________________ is the normal pacemaker of the heart
Fill in the blank(s) with correct word
The three major stages of spermatogenesis are ____________________, ____________________, and ____________________
Fill in the blank(s) with correct word
What is the correct sequential path of a normal action potential in the heart?
a. SA node, AV node, bundle branches, AV bundle, Purkinje fibers b. SA node, AV node, bundle of His, bundle branches, Purkinje fibers c. SA node, AV bundle, AV node, Purkinje fibers d. AV node, SA node, AV bundle, bundle of His
Which are the external genitals of the male?
A. Testes and penis B. Scrotum and testes C. Penis and prostate D. Penis and scrotum