1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
oksano4ka [1.4K]
3 years ago
14

Removal of a client's peripheral intravenous catheter resulted in brief bleeding and the loss of a small amount of blood. Which

of the following processes occurred during the formation of the platelet plug that helped to stop blood flow?
A)
Activation of factor X
B)
Conversion of prothrombin to thrombin
C)
Release of von Willebrand factor from the epithelium
D)
Conversion of fibrinogen to fibrin threads
Biology
1 answer:
Marta_Voda [28]3 years ago
6 0

Answer:

C)  Release of von Willebrand factor (vWF) from the endothelium, not the epithelium.

Explanation:

Hemostasis is the physiological process of reparation and maintenance of a blood vessel to stop excess loss of blood in case of vascular injury. This process occurs in four stages:

  1. Vascular Injury i.e. a breach in the endothelial barrier. This results in the dislodge of endothelial cells, exposing the collagen fibers underneath.
  2. Vascular constriction or vasoconstriction is the constriction of the blood vessels to prevent excessive blood loss.
  3. Platelet plug formation involves the aggregation and adhesion of platelets to the endothelium.
  4. Coagulation

Platelet plug formation occurs by the adhesion of circulating platelets to the collagen fibers that have been exposed by dislodging of the endothelial cells. The endothelium, as well as the platelets release a ligand known as the von Willebrand factor (vWF). This molecule acts as a relay or bridge between the integrin receptors on the platelets and the exposed collagen fibers.

Platelets also release chemicals to attract more platelets to the wound site, resulting in more vWF release. This results in more and more platelets adhering to the endothelium, leading to platelet plug formation.

You might be interested in
The image shows a bean-shaped bacterium with long tail-like projections streaming from it.
Leto [7]
I'd also say that the morphology presented in this picture is filamentous.
The reason for my believing this is that filamentous morphology concerns long visible chains, threads, or filaments, which you can see in the image.
8 0
4 years ago
Read 2 more answers
A pea plant with purple flowers is crossed with a pea plant that has white flowers. All the offspring are purple, so we can conc
Gnoma [55]

Answer:

That the purple trait is dominant and the purple pea plant has a gene type of PP and the white flower has a gene type of pp

6 0
3 years ago
1). Mammals carry hemoglobin and oxygen in their red blood cells to help the blood circulate in the different parts of their bod
Sonbull [250]

Answer:

In mammals, oxygen is carried through the red blood cells called hemoglobin. The reason is that the oxygen is very important for the cell for releasing energy. This energy is used by the cell in different processes.

2) These adaptations are adapted by the organisms in order to perform different functions. In slow twitch skeletal muscles having high number of mitochondria because it requires more energy while fast twitch skeletal muscles contains less amount of mitochondria due to low requirements of energy. These characteristics are adapted according to the performance of the body parts.

4 0
3 years ago
7)
GrogVix [38]

Answer:

C)  DNA or RNA

Explanation:

Genetic material is found in both viruses and in living single-celled organisms, such as protozoans and bacteria.

8 0
3 years ago
What do autotrophs do durring photosynthesis?
OleMash [197]
They make their food furing photosynthesis
5 0
3 years ago
Other questions:
  • A type of blood cell that can kill cancer cells is called (<br> a. ________.
    15·1 answer
  • Where does meiosis take place in bryophytes
    15·1 answer
  • What I'd the difference between transpiration and guttation
    11·1 answer
  • James observes an orbiting body that is approximately 5.2 AU away from the Sun. He knows that it is primarily composed of helium
    13·2 answers
  • Less than normal hearing (either sensitivity or speech understanding) resulting from auditory disorders) refers to
    9·1 answer
  • Which of these genes is not a part of the lac operon?
    12·1 answer
  • D4 Science)<br> 7. Where do you find membrane-bound organelles?
    12·1 answer
  • What is a major benefit of schooling
    6·2 answers
  • A limerick on soil erosion five lines can someone help me.
    15·1 answer
  • How does weathering and erosion from waves cause<br> landforms to develop?? NEED HELP ASAP PLEASE!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!