This topic contains a solution. Click here to go to the answer

Author Question: How does the vascular system contribute to hemostasis? What will be an ideal ... (Read 42 times)

saraeharris

  • Hero Member
  • *****
  • Posts: 546
How does the vascular system contribute to hemostasis?
 
  What will be an ideal response?

Question 2

Which of the following acts as a transport portal for granules to move from the organelle zone to the membrane zone?
 
  a. Open canalicular system
  b. Dense tubular system
  c. Membrane glycoproteins
  d. Endoplasmic reticulum



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

debra928

  • Sr. Member
  • ****
  • Posts: 342
Answer to Question 1

Answer: The vascular system contributes to hemostasis through its various functions:
 Procoagulant
 Anticoagulant
 Fibrinolytic
General characteristics:
 It has the ability to undergo vasoconstriction (procoagulant) and vasodilation (anticoagulant).
 It's layers of the blood vessel (tunica adventitia, tunica media, and tunica intima) all have collagen: exposed subendothelial collagen is responsible for initiating contact activation and platelet adhesion and activation.
 It is a source of von Willebrand factor needed for platelet adhesion and factor VIII carrier
Other procoagulant functions:
 Releases p-selectin to recruit WBC and PLTs to the site of injury
Anticoagulant functions:
 Releases prostacyclin (platelet activator inhibitor and vasodilator)
 Releases nitric oxide (vasodilator)
 Releases thrombomodulin (interacts with thrombin to activate protein C and S pathway that degrades factors V and VIII)

Answer to Question 2

Correct Answer: A




saraeharris

  • Member
  • Posts: 546
Reply 2 on: Jun 25, 2018
:D TYSM


dawsa925

  • Member
  • Posts: 326
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

For a complete list of videos, visit our video library