« previous next »

Author Question: What is the purpose of valves in the circulatory system? A) Control the volume of blood moved in ... (Read 71 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?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Gate Control Theory, Gate control, Open gate, Closed gate, Pain, Nerve transmission of pain, Pain ma Gate Control Theory, Gate control, Open gate, Closed gate, Pain, Nerve transmission of pain, Pain ma
Changes in Blood Test Values with Acute Myocardial Infarction Changes in Blood Test Values with Acute Myocardial Infarction
The Human Olfactory System The Human Olfactory System
Birth Control Methods and Abortion Birth Control Methods and Abortion
Formation of Blood Cells Formation of Blood Cells
Normal red blood cells (round) and sickled red blood cells Normal red blood cells (round) and sickled red blood cells
Video: Structures that affect circulation - arterioles and vasomotor responses

For a complete list of videos, visit our video library