« previous next »

Author Question: What is the purpose of valves in the circulatory system? A) Control the volume of blood moved in ... (Read 65 times)

CBme

  • Hero Member
  • *****
  • Posts: 548
on: Jul 2, 2018
What is the purpose of valves in the circulatory system?
 
  A) Control the volume of blood moved in each pulse
  B) Prevent the backflow of blood in the vessels
  C) Support the bifurcation of the veins
  D) Allows for expansion and contraction of the veins

Question 2

MOST state statutes allow an emergency vehicle operator to do which of the following on emergency calls?
 
  A) Drive around lowered cross-arms at a railroad crossing
  B) Exceed posted speed limits if life and property are not endangered
  C) Be exempt from liability in the event of a serious collision
  D) Pass a stopped school bus when it has its red flashers on


BUTTHOL369

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 2, 2018
Answer to Question 1

B

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

The poverty of the Least Industrialized Nations carries over to their educational system. These ... The poverty of the Least Industrialized Nations carries over to their educational system. These ...
Engine oil pressure is used to switch cam lobes on a VTEC system. Engine oil pressure is used to switch cam lobes on a VTEC system.
A waste-spark system fires one cylinder while its piston is on the compression stroke and into ... A waste-spark system fires one cylinder while its piston is on the compression stroke and into ...
Overview of the Solar System Overview of the Solar System
Blood Flow to the Brain Blood Flow to the Brain
Blood vessels associated with the nephron. The glomerulusis a ball of capillaries that have unusuall Blood vessels associated with the nephron. The glomerulusis a ball of capillaries that have unusuall
Video: Physiology of Asthma

For a complete list of videos, visit our video library