The Role of Elastin Fibers in Lung Function

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Questions and Answers

Which type of tissue mainly supports and binds other tissues?

  • Connective tissue (correct)
  • Epithelial tissue
  • Nervous tissue
  • Muscle tissue

What is the function of the fibroblasts in connective tissue?

  • To secrete extra-sevalve matrix (correct)
  • To provide blood supply through capillaries
  • To protect the body from pathogens
  • To connect the longitudinal and circular layers of smooth muscle

When is connective tissue exposed to the environment?

  • When you have an infection
  • When you cut through the skin (correct)
  • When you have a wound
  • When you look at your body

Which cells are involved in the immune system and belong to the cells of connective tissue?

<p>Macrophages (D)</p> Signup and view all the answers

What is the function of adipose tissue in the connective tissue?

<p>Stores energy reserves (A)</p> Signup and view all the answers

Which type of connective tissue is found in tendons and ligaments?

<p>Fibrous connective tissue (B)</p> Signup and view all the answers

What is the main component of bone that gives it its hardness?

<p>Hydroxyl appetite (D)</p> Signup and view all the answers

Which of the following is NOT a characteristic of bone?

<p>Bone is a permanent structure (B)</p> Signup and view all the answers

What substance is found in the exosalogam matrix of cartilage?

<p>Chondroitin sulfate (B)</p> Signup and view all the answers

What causes adipose tissue to appear as empty bubbles with few nuclei?

<p>Fixation of the tissue in alcohol (D)</p> Signup and view all the answers

Which of the following is true about the interstitium?

<p>It is a part of the connective tissue (D)</p> Signup and view all the answers

Which type of fiber provides strength and flexibility in connective tissues?

<p>Collagenous fibers (D)</p> Signup and view all the answers

What is the main component of the ground substance in the extracellular matrix?

<p>Water (D)</p> Signup and view all the answers

Which fiber type is responsible for joining connective tissue to adjacent tissues or organs?

<p>Reticular fibers (A)</p> Signup and view all the answers

Which protein is the main component of bones?

<p>Collagen (C)</p> Signup and view all the answers

True or false: Connective tissue is always exposed to the environment.

<p>False (B)</p> Signup and view all the answers

True or false: Connective tissue mainly supports and binds other tissues.

<p>True (A)</p> Signup and view all the answers

True or false: Connective tissue is usually avascular.

<p>False (B)</p> Signup and view all the answers

True or false: Elastin fibers in the extracellular matrix can be replaced in the body.

<p>False (B)</p> Signup and view all the answers

True or false: Dense regular connective tissue can be found in tendons and ligaments.

<p>True (A)</p> Signup and view all the answers

True or false: Adipose tissue is responsible for storing energy reserves in the body.

<p>True (A)</p> Signup and view all the answers

True or false: Cartilage is a strong and flexible support material in the body.

<p>True (A)</p> Signup and view all the answers

True or false: Collagen fibers provide strength and flexibility in connective tissues.

<p>True (A)</p> Signup and view all the answers

True or false: Elastin fibers are mostly expressed after birth and have a half-life of 74 years.

<p>False (B)</p> Signup and view all the answers

True or false: The ground substance in the extracellular matrix is mainly composed of water.

<p>True (A)</p> Signup and view all the answers

True or false: Reticular fibers are responsible for joining connective tissue to adjacent tissues or organs.

<p>True (A)</p> Signup and view all the answers

True or false: Osteoporosis is caused by an imbalance between bone breakdown and bone synthesis?

<p>True (A)</p> Signup and view all the answers

True or false: Adipose tissue appears as empty bubbles with few nuclei due to the fixation process?

<p>True (A)</p> Signup and view all the answers

True or false: The interstitium is a newly discovered organ in the human body?

<p>False (B)</p> Signup and view all the answers

True or false: The interstitium plays a role in generating gradients and is important for kidney function?

<p>True (A)</p> Signup and view all the answers

Connective tissue is never exposed to the ______.

<p>environment</p> Signup and view all the answers

Connective tissue mainly supports and ______ other tissues.

<p>binds</p> Signup and view all the answers

Connective tissue is usually ______.

<p>vascularized</p> Signup and view all the answers

Collagen fibers provide strength and __________ in connective tissues.

<p>flexibility</p> Signup and view all the answers

Elastin fibers are mainly expressed during __________, before birth, and in the first few years after birth.

<p>development</p> Signup and view all the answers

The extracellular matrix consists of different types of __________, including collagen, elastin, and reticular fibers.

<p>fibers</p> Signup and view all the answers

The ground substance in the extracellular matrix is composed mainly of __________.

<p>water</p> Signup and view all the answers

Bone is constantly ______ and ______.

<p>degraded, rebuilt</p> Signup and view all the answers

Osteoporosis is usually due to a disbalance between bone ______ and bone ______.

<p>breakdown, synthesis</p> Signup and view all the answers

Adipose tissue in most tissue sections looks like white, empty ______ with a few nuclei in between.

<p>bubbles</p> Signup and view all the answers

The interstitium is a fluid filled spaces in between ______ bundles and cells and that is part of the connective tissue.

<p>collagen</p> Signup and view all the answers

Connective tissue establishes a structural framework so that could for example be ______ or cartilage.

<p>bone</p> Signup and view all the answers

Blood is also part of the connective tissue. It transports fluid and dissolved materials that is for example what ______ does.

<p>blood</p> Signup and view all the answers

The fibroblasts secrete the protein of extracellular fibers and form this ______.

<p>extracellular matrix</p> Signup and view all the answers

Adipose tissue is a part of the connective tissue and it stores ______ reserves.

<p>energy</p> Signup and view all the answers

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