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.
monosynaptic reflex A simple reflex that involves transmission of information from a sensory neuron to the appropriate motor neuron across a single synapse in the spinal cord.The knee-jerk reflex action is an example of a monosynaptic reflex (see stretch reflex). Compare polysynaptic reflex.Cite this article. Pick a style below, and copy the text for your bibliography.MLA. Chicago. APA.  monosynaptic reflex. . . 2004. Encyclopedia.com.he knee-jerk reflex action is an example of a monosynaptic reflex (see stretch reflex). Compare polysynaptic reflex. Cite this article. Pick a style below, and copy the text for your bibliography. MLA. Chicago. APA.  monosynaptic reflex. . . 2004. Encyclopedia.com.