Vitreous Humor

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What percentage of the vitreous is composed of water?

  • 90%
  • 80%
  • 98.5% to 99.7% (correct)
  • 95%

What is the main structural component of the vitreous body?

  • Collagen Type II fibers (correct)
  • Amino acids
  • Hyalocytes
  • Hyaluronic acid

What is the volume of the vitreous chamber?

  • 6 ml
  • 5 ml
  • 4 ml (correct)
  • 3 ml

What is the shape of the vitreous body?

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

What is the function of the hyalocytes in the vitreous?

<p>They regulate the consistency of the vitreous (C)</p> Signup and view all the answers

How does the consistency of the vitreous change throughout life?

<p>It becomes more liquid-like as we age (C)</p> Signup and view all the answers

What is the primary function of the vitreous in the eye?

<p>To cushion the eye from external forces (D)</p> Signup and view all the answers

Which structure represents the site of the former embryological hyaloid artery?

<p>Cloquet’s Canal (B)</p> Signup and view all the answers

What is the common cause of Weiss ring formation in the vitreous gel?

<p>Normal aging changes (B)</p> Signup and view all the answers

Which part of the vitreous contains transvitreal channels that can appear as holes?

<p>Posterior Vitreous Cortex (A)</p> Signup and view all the answers

What is the clinical significance of vitreous hemorrhage?

<p>It can result from neovascularization in diabetic retinopathy (C)</p> Signup and view all the answers

Which of the following regions of the vitreous has tight attachments with the highest likelihood of causing a retinal tear?

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

Which of the following is NOT one of the five attachments of the vitreous to the retina and lens?

<p>Anterior chamber angle (D)</p> Signup and view all the answers

What is the term used to describe the space between Weiger's ligament and the posterior lens capsule?

<p>Berger's Space (D)</p> Signup and view all the answers

Which of the following statements about the vitreous cortex is INCORRECT?

<p>The vitreous cortex is composed primarily of collagen fibrils and hyalocytes. (B)</p> Signup and view all the answers

What is the function of Cloquet's Canal, also known as the hyaloid channel?

<p>It is a remnant of the primary vitreous and the former embryological hyaloid artery. (B)</p> Signup and view all the answers

Which of the following statements about vitreous hemorrhage is CORRECT?

<p>It can result from the rupture of normal vessels due to conditions like retinal tears or posterior vitreous detachment. (C)</p> Signup and view all the answers

What is the term used to describe the funnel-shaped space at the optic nerve head?

<p>Martegiani's Area (A)</p> Signup and view all the answers

Which of the following statements about vitreous asteroid hyalosis is INCORRECT?

<p>It is more commonly seen in younger individuals. (A)</p> Signup and view all the answers

What is the primary function of the vitreous in the eye?

<p>To serve as a transparent medium for the passage of light and act as a cushion for the retina and lens. (D)</p> Signup and view all the answers

What is the primary function of the collagen fibrils in the vitreous?

<p>To provide structural support and maintain the gel-like consistency (D)</p> Signup and view all the answers

What is the purpose of the patellar fossa in the vitreous chamber?

<p>To allow for the movement of the lens during accommodation (B)</p> Signup and view all the answers

Which of the following substances is found in higher concentrations in the vitreous compared to plasma?

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

Which of the following best describes the role of hyalocytes in the vitreous?

<p>They help maintain the transparency of the vitreous (C)</p> Signup and view all the answers

What is the significance of the high water content in the vitreous?

<p>It provides a medium for the transmission of light (D)</p> Signup and view all the answers

What is the primary role of hyaluronic acid in the vitreous?

<p>To provide structural support and maintain the gel-like consistency (D)</p> Signup and view all the answers

How does the consistency of the vitreous change throughout life?

<p>It becomes more liquid with age (D)</p> Signup and view all the answers

What is the primary function of the vitreous in the eye?

<p>To provide a transparent medium for the passage of light (D)</p> Signup and view all the answers

What is the clinical significance of vitreous hemorrhage?

<p>All of the above (D)</p> Signup and view all the answers

Which region of the vitreous has the tightest attachments with the highest likelihood of causing a retinal tear?

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

What is the term used to describe the space between Weiger's ligament (retrolental ligament) and the posterior lens capsule?

<p>Berger's space (D)</p> Signup and view all the answers

What is the primary structural component of the vitreous body?

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

Which of the following statements about vitreous asteroid hyalosis is INCORRECT?

<p>It is a bilateral condition that is commonly seen in young individuals (D)</p> Signup and view all the answers

What is the primary structural component of the vitreous body, making up a majority of its composition?

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

Which region of the eye's vitreous chamber is described as having a spherical shape with an indentation for the lens?

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

What is the function of hyalocytes in the vitreous body?

<p>Maintain collagen fibrils (B)</p> Signup and view all the answers

What is the volume of the vitreous chamber in an average adult eye?

<p>$5$ ml (C)</p> Signup and view all the answers

In what part of the vitreous chamber are hyalocytes primarily located?

<p>Cortex near the vitreal surface (D)</p> Signup and view all the answers

What is a distinguishing characteristic of the vitreous cortex based on scanning electron microscopy?

<p>Dense packing of collagen fibrils (D)</p> Signup and view all the answers

Flashcards are hidden until you start studying

Related Documents

Vitreous Humor PDF

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser