A "whiplash" type neck injury is MOST often observed with what type of collision?

The intrinsic rate of the SA node is:

A) set by the sympathetic nervous system. B) 15-40 bpm. C) 60-100 bpm. D) 40-60 bpm.

The ________ is the chamber that receives blood from the superior and inferior venae cavae

Fill in the blank(s) with correct word