Dissectible Me 5 minute anatomy
Sep 13, 2026 · 6 min · 5 segments
The autonomic nervous system innervates the sino-atrial node and controls the rate of contraction of the heart. What other effects do sympathetic and parasympathetic nerves have on the heart? I can…
[upbeat music] Hi, how are you doing? Oh, I really don't think I can do this one in five minutes or less.
Um, this is about the effects of sympathetic and parasympathetic innervation on the heart, so autonomic innervation of the heart, and it's, it's because of how students asks-- answer a particular exam question that I occasionally set.
Um, so we're talking about sympathetic and parasympathetic motor innervation to the heart, and the question being, you know, name two effects of sympathetic innervation on the heart, for example, or could be parasympathetic.
There are actually three answers w- that would get a mark, but students tend to do not so well at this.
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[upbeat music] Hi, how are you doing? Oh, I really don't think I can do this one in five minutes or less.
Um, this is about the effects of sympathetic and parasympathetic innervation on the heart, so autonomic innervation of the heart, and it's, it's because of how students asks-- answer a particular exam question that I occasionally set.
Um, so we're talking about sympathetic and parasympathetic motor innervation to the heart, and the question being, you know, name two effects of sympathetic innervation on the heart, for example, or could be parasympathetic.
There are actually three answers w- that would get a mark, but students tend to do not so well at this.