Chapter 8, Part B â The Spinal Cord! 13 Spinal Reï¬exes-Reï¬ex Arc Components! Spinal cord is the integrating center (âdecision makerâ) of a spinal reï¬ex arc!1. Sensory receptor!â¢ Responds to stimulus!â¢ Generates signal to be sent to integrator!2.
Betsy Ross was from the major colonial city of Philadelphia.
John and Elizabeth (Betsy) Ross began an upholstery business together, drawing on her needlework skills. John was killed in January 1776 on militia duty when gunpowder exploded at the Philadelphia waterfront. Betsy acquired property and kept up the upholstery business, beginning to make flags for Pennsylvania as well.