Anatomy & Physiology › Section R · Blood vessels and circulation › Topic R.4
Homeostatic regulation of the vascular system
Stand up, start running or lose blood, and within seconds your circulation adjusts so the brain and heart keep their supply. Nerves act fastest, hormones adjust blood volume over hours to days, and the tissues themselves fine-tune their own flow.
In this topic
- Keeping tissues perfused
- Neural control: the cardiovascular centre
- The baroreceptor reflex
- Worked example: standing up quickly
- Chemoreceptor reflexes
- Endocrine control
- Atrial natriuretic hormone
- Autoregulation in the tissues
- Worked example: compensating for blood loss
- Hypertension, hypotension and shock
- Common mistakes to avoid
- Key takeaways
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