Question

What is the term used for blood lacking corpuscles and fibrinogen?

• A. Platelets
• B. Thrombin
• C. Serum
• D. Lipids

Answer 1

The correct option is C

Serum

The correct option is C.

The explanation of the correct option:

1. Blood clotting is an important, natural phenomenon and its occurrence is necessary so that a huge amount of blood is not lost during an accident.
2. Clotting occurs in few minutes after the accident and it usually includes corpuscles and fibers forming a net-like structure to avoid blood loss.
3. The liquid which lacks fibrinogen is called Serum and it does not contain any kind of clotting factors but contains electrolytes, antibodies, hormones, and antigens which are not required in this process.
4. It does not contain red blood cells, white blood cells, platelets, or clotting factors.

The explanation of incorrect options:

Option A:

Platelets are colorless cell fragments and they help in the formation of clots and prevent bleeding during accidents.

Option B:

Thrombin is generated in injured cells and it has procoagulant, inflammatory, cellular proliferation, and anticoagulant effects.

Option D:

Lipid exerts a surface catalytic action on the plasma coagulation proteins with which it may bind in the presence of calcium.

Final answer: Serum is the term used for blood lacking corpuscles and fibrinogen.