No valves exist between the anterior vena cava and the heart, and the heartbeat tends to cause movement within this blood vessel. Another vessel, the posterior vena cava, carries blood from the lower half of the body to the heart.
The 2016 Hereford, Texas, population is 15,021. There are 2,447 people per square mile (population density).
Most / Least Educated Cities in TX. As of 2010-2014, the total population of Midland is 119,409, which is 25.70% more than it was in 2000. The population growth rate is higher than the state average rate of 25.13% and is much higher than the national average rate of 11.61%.