How is calcium concentration in the body regulated?
A) By chloride and phosphate concentrations in the plasma
B) By sodium and calcium concentrations in the plasma
C) By hormones
D) By the parasympathetic nervous system
E) By the sympathetic nervous system
C
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The phrenic nerves arise from ________ plexus.
A. sacral B. lumbar C. cervical D. brachial
In which type of scar does the scar tissue extend beyond the boundary of the injury into normal tissue?
a) Hypertrophic scar b) Keloid scar c) Proliferative scar d) Inhibitory scar e) Granuloma
Llamas range in weight size from _________ pounds to __________ pounds
Fill in the blank(s) with correct word
Propagation of an action potential to the axon terminal triggers the opening of what kind of voltage-gated channels?
a. calcium b. sodium c. potassium d. acetylcholine e. dopamine