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Genrish500 [490]
3 years ago
15

The principle of cross-cutting relationships states that certain features-

Biology
1 answer:
-BARSIC- [3]3 years ago
6 0

Answer:

of rock is cut across

Explanation:

igneous intrusion is always younger then the rock it cuts across

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Removal of a client's peripheral intravenous catheter resulted in brief bleeding and the loss of a small amount of blood. Which
Marta_Voda [28]

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.

6 0
2 years ago
What are the predominant im forces between molecules of water?
masha68 [24]
Hydrogen bonds, due to the polar nature of the water molecules.
8 0
3 years ago
What is a B cell? A- a virus that makes bacteria B- a lymphocyte that makes antibodies C-an antigen that makes antibodies D- a p
Zanzabum

it's a lymphocyte that makes antibodies

5 0
3 years ago
Energy is stored in the body primarily as __________ in the muscles and liver and as ___________ in subcutaneous body fat.
svetoff [14.1K]

Answer: Energy is stored in the body primarily as GLYCOGEN in the muscles and liver and as TRIGLYCERIDE in subcutaneous body fat.

Explanation:

We take in food for the purpose of ENERGY, building of worn out tissues of the body and to boost the body immunity. After the intake of food, amino acids from dietary protein are used to synthesize body proteins and other molecules, carbohydrate is used to maintain blood glucose and to build glycogen stores, fat is used for energy or stored in the body.

The body must have a steady supply of energy with some of it coming from the metabolism of glucose.

GLYCOGEN formation occurs when there is excess blood glucose level in the process called glycogenesis. It is the suitable way glucose can be stored as it is insoluble and can not disturb the osmotic pressure of the cells. When food is restricted over time, glycogen stores are expended, and the body must rely on the breakdown of stored GLYCOGEN to be converted to glucose for energy production.

Also, energy for tissues that don't require glucose can come from the breakdown of triglycerides in the adipose tissue. TRIGLYCERIDES are formed by the liver when excess calories are taken, and are stored in the adipose tissues.

4 0
3 years ago
The nurse is auscultating for abdominal bruits. which vessel would the nurse auscultate last?
klemol [59]

The nurse is auscultating for abdominal bruits, on carotid artery the nurse auscultate last.

The bruits are a swishing sounds due to turbulence in the blood vessel in the abdomen and it heard due to atherosclerotic changes in the abdomen, whereas the carotid artery may be auscultating for bruits.

The auscultate abdominal bruits are present initially, at the right lower quadrant, it move in the sequence up to right upper quadrant, then to left upper quadrant and then finally to the lower quadrant. The auscultating for bruits are present over the aorta, renal arteries, femoral arteries and iliac arteries.

To learn more about carotid artery here

brainly.com/question/13962448

#SPJ4

3 0
1 year ago
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