The USDA created the food pyramid to encourage a healthy diet, but the USDA also has a mission to encourage agricultural products grown in the US. There can be a LOT of conflict between those two goals. So the food pyramid (ahem, I mean MyPlate) is not simply an objective summary of the available evidence.
The stretch reflex (myotatic reflex) is a muscle contraction in response to stretching within the muscle. It is a monosynaptic reflex which provides automatic regulation of skeletal muscle length. When a muscle lengthens, the muscle spindle is stretched and its nerve activity increases.
Making the world better, one answer at a time. the enterogastric reflex is actaully a trio of reflexes that inhibit the vagal nuclei in the medulla, inhibit local reflexes and activate the sympathetic fibres that cause the pyloric sphincter to tighten and prevents further chyme entry into the small intestine.se of the straw is not response to stimulus, and therefore not a reflex. Reflexes follow a Reflex ARC. The Arc is through the spinal cord. While the information gets sent to the brain (you know you touched something hot, or you are choking and coughing), the reflex totally by-passes the brain.