| Answer | Crossword Clue |
|---|---|
| VEINULES | Smaller circulatory vessels. |
| microvascular | of, relating to, or constituting the part of the circulatory system made up of minute vessels (as venules or capillaries) that average less than 0.3 millimeters in diameter |
| vasomotor | Denoting a region in the medulla of the brain (the vasomotor center) that regulates blood pressure by controlling reflex alterations in the heart rate and the diameter of the blood vessels, in response to stimuli from receptors in the circulatory system or from other parts of the brain |
| BOATS | Vessels smaller than ships |
