Small arteries that are dilated or constricted to control peripheral resistance, and thus blood pressure, are .
a) blood flow into a capillary bed is regulated by the sphincter.
b) the , or inner-most layer of blood vessels, is made of endothelial tissue.
c) the pressure of nondiffusible molecules pulling water to them is called colloid .
d) reduction in the diameter of a blood vessel is called , and typically results in an increase in blood pressure.

The dimesions of health operate independently; they don’t affect one another. t or f

At 2: 00 am, a 17-year-old boy, accompanied by his 19-year-old girlfriend, had driven to the bar to give his father (who had been drinking large amounts of alcohol) a ride home. on the way back, they were involved in a motor vehicle collision. the boy has a large laceration with profuse bleeding on his forehead. his girlfriend is unconscious in the front passenger floor. the father is standing outside the vehicle, appearing heavily intoxicated, and is refusing care. what is the best way to gain consent to begin care when his father has an altered mental status or is unconscious? a. phone his mother for consent. b. call his grandparents for consent. c. it is a true emergency, so consent is implied. d. you are covered under the good samaritan laws.

Cardiac output is affected by heart rate exercise stroke volume all of the above