This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following is necessary for platelet adhesion to collagen? a. Calcium b. Fibrinogen ... (Read 99 times)

ts19998

  • Hero Member
  • *****
  • Posts: 531
on: Jun 25, 2018
Which of the following is necessary for platelet adhesion to collagen?
 
  a. Calcium
  b. Fibrinogen
  c. VWF
  d. Factor XIII

Question 2

Which of the following aids in preventing excess clotting?
 
  a. Thrombin
  b. Factor VII
  c. Nitric oxide
  d. Protein C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Awesome

  • Sr. Member
  • ****
  • Posts: 280
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: C
VWF is necessary for normal platelet adhesion to exposed subendothelial collagen. Calcium is a cofactor required for binding of vitamin K-dependent proteins to phospholipids. Fibrinogen is necessary for normal platelet aggregation, whereas factor XIII, in its active form, cross-links the fibrin polymer and thus stabilizes the clot.

Answer to Question 2

ANS: D
The protein C pathway helps regulate the coagulation mechanism by digesting activated coagulation factors V and VIII. Thrombin is the activated form of prothrombin; it plays a number of roles in promoting coagulation, including the splitting of fibrinogen to form fibrin. Nitric oxide counteracts vasoconstriction.


ts19998

  • Member
  • Posts: 531
Reply 2 on: Jun 25, 2018
Thanks for the timely response, appreciate it

nanny

  • Member
  • Posts: 313
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Structure of collagen Structure of collagen
. Collagen (Mr 300,000) is a rod-shaped molecule, about 3,000 Å . Collagen (Mr 300,000) is a rod-shaped molecule, about 3,000 Å
The use of antispasmodics, which block release of Ach or calcium, can result in reduced pain as well ... The use of antispasmodics, which block release of Ach or calcium, can result in reduced pain as well ...
Calcium channels and muscle contraction: (a) Calcium channels open as the action potential travels ... Calcium channels and muscle contraction: (a) Calcium channels open as the action potential travels ...
Calcium Channel Blockers Calcium Channel Blockers
Normal Recommended Daily Intakes for Calcium Normal Recommended Daily Intakes for Calcium
Video: Factors that affect conduction rates (myelination, axon diameter & temperature)

For a complete list of videos, visit our video library