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2021-05-14

Which cells produce protein Fibres and ground substance in dense connective tissue?

Which cells produce protein Fibres and ground substance in dense connective tissue?

Polysaccharides and proteins secreted by fibroblasts combine with extra-cellular fluids to produce a viscous ground substance that, with embedded fibrous proteins, forms the extra-cellular matrix. Three main types of fibers are secreted by fibroblasts: collagen fibers, elastic fibers, and reticular fibers.

What is the ground substance of loose connective tissue?

10.01. Loose connective tissue is the most widely distributed of all connective tissues. In association with ground substance, the loose network of elastin fibers and collagen fibers, both of which branch freely, provides moderate amounts of elasticity and strength in tissues and organs.

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What makes a connective tissue loose or dense?

Both tissues have a variety of cell types and protein fibers suspended in a viscous ground substance. Dense connective tissue is reinforced by bundles of fibers that provide tensile strength, elasticity, and protection. In loose connective tissue, the fibers are loosely organized, leaving large spaces in between.

What type of cells form protein fibers in connective tissue proper?

Formed by fibroblasts and maintained by fibrocytes. Connective tissue fibers: name and describe three. 1) Collagen: most common fibers in connective tissue proper. Fibers are long straight and unbranched.

What are the three main components of connective tissues?

Connective tissue consists of three main components: cells, protein fibers, and an amorphous ground substance.

What is the most abundant cell?

Red blood cells (RBCs) are by far the most abundant type of cell in the human body, accounting for over 80 percent of all cells.

What are the six different blood products?

Red Blood Cells

  • Red Blood Cells.
  • Plasma.
  • Platelets.
  • Cryoprecipitate.
  • Transfusion Complications.
  • Acute Transfusion Reactions.
  • Delayed Transfusion Reactions.

Which blood cell is least abundant?

Basophil Basophils

What is the most abundant substance in plasma?

Albumin

What are the most abundant Agranulocytes?

Cards

Term Functions of the circulatory system Definition Transport: O2, Co2, nutrients, wastes hormones, and stem cells Protection: Limit spread of infection, clotting, inflammation Regulation: Fluid balance, pH, temperature control
Term What are the most abundant agranulocytes? Definition Lymphocytes
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What are the two types of Agranulocytes?

Agranulocytes. There are two types of agranulocytes in mammals: lymphocytes and monocytes (Figs. G20a and G20b).

What does Agranulocytes mean?

Agranulocytes or nongranulocytes, also mononuclear leukocytes, are one of the two types of white blood cells, also known as leukocytes. The other type of white blood cells are known as granulocytes. Agranular cells are noted by the absence of granules in their cytoplasm, which distinguishes them from granulocytes.

Which is a hormone that stimulates erythrocyte production?

Erythropoietin is a hormone, produced mainly in the kidneys, which stimulates the production and maintenance of red blood cells.

What is the most common type of leukocyte in a healthy adult?

neutrophils

What organ in the body regulates erythrocyte production?

kidney

What enzyme digests fibrin?

In fibrinolysis, a fibrin clot, the product of coagulation, is broken down. Its main enzyme plasmin cuts the fibrin mesh at various places, leading to the production of circulating fragments that are cleared by other proteases or by the kidney and liver.

Which is a regulatory function of blood?

Blood plays an important role in regulating the body’s systems and maintaining homeostasis. Other functions include supplying oxygen and nutrients to tissues, removing waste, transporting hormones and other signals throughout the body, and regulating body pH and core body temperature.

What enzyme removes unneeded clots after healing has occurred?

Plasmin

Which of the following is true regarding the extrinsic pathway of blood clotting?

Which of the following is true regarding the extrinsic pathway of blood clotting? The extrinsic pathway is slower than the intrinsic pathway of blood clotting.

What blood sample contained the universal recipient?

Type AB-positive

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What organ would blood clots from the lower legs have to pass through to get to the lungs?

A pulmonary embolism (PE) is a blood clot that develops in a blood vessel in the body (often in the leg). It then travels to a lung artery where it suddenly blocks blood flow.

What is the survival rate of a pulmonary embolism?

While clinical data indicate that most cases of PE occur at 60 to 70 years of age, autopsy data show the highest incidence among individuals 70 to 80 years of age. If untreated, acute PE is associated with a significant mortality rate (as high as 30%), whereas the death rate of diagnosed and treated PE is 8%.

What does a blood clot in your lung feel like?

Trouble breathing. If this happens, it could mean that the clot has moved from your arm or leg to your lungs. You may also get a bad cough, and might even cough up blood. You may get pain in your chest or feel dizzy. Call 911 to get medical help right away.

Do lungs heal after pulmonary embolism?

Recovery time for a blood clot in the lungs The time it takes to completely recover from a pulmonary embolism can be several months or years, depending on the circumstances. However, people typically start to notice improvements in their symptoms once treatment begins.

What happens to lungs after pulmonary embolism?

Around 2% to 4% of patients with PE will have chronic damage to the lungs known as pulmonary hypertension (chronic thromboembolic pulmonary hypertension), which is characterized by shortness of breath and decreased exercise ability. Pulmonary hypertension can lead to heart failure if untreated.