Biology: Blood and Lymph Composition
26 Questions
0 Views

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

Where does lymph originally come from?

  • Lymphatic vessels
  • Endothelial cells
  • Capillaries
  • Blood vessels (correct)
  • What is the composition of lymph once it gets into the lymphatic vessels?

  • The same as extracellular fluid (correct)
  • Different from extracellular fluid
  • Only red blood cells and proteins
  • Only water and glucose molecules
  • What percentage of blood is made up of red blood cells?

  • 20% by volume
  • 80% by volume
  • 60% by volume
  • 40% by volume (correct)
  • What is squeezed out of blood vessels to form lymph?

    <p>Fluid through the little holes between the capillaries</p> Signup and view all the answers

    What is lymph called before it gets into the lymphatic vessels?

    <p>Extracellular fluid</p> Signup and view all the answers

    What is the main function of proteins in blood?

    <p>To do many different kinds of things</p> Signup and view all the answers

    What is NOT represented in the drawing of blood?

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

    Why is it hard to draw all the red blood cells in the blood?

    <p>Because they are packed in tightly</p> Signup and view all the answers

    What is the approximate volume of fluid that is squeezed out of the capillaries per day?

    <p>3 liters</p> Signup and view all the answers

    What is unique about the composition of lymph coming from the small intestine?

    <p>High concentration of chylomicrons</p> Signup and view all the answers

    What is the primary function of the lacteals in the small intestine?

    <p>To take up fats and chylomicrons</p> Signup and view all the answers

    What happens to the proteins produced by the liver?

    <p>They are put into lymph</p> Signup and view all the answers

    What is the approximate concentration of protein in lymph coming from the liver compared to other places?

    <p>10 times as much</p> Signup and view all the answers

    What is the eventual fate of all the lymph vessels, including the lacteals coming from the small intestine?

    <p>They merge and go back into circulation</p> Signup and view all the answers

    Where do the lymph vessels eventually merge and go to?

    <p>The heart</p> Signup and view all the answers

    Why are the veins drawn in blue in the diagram?

    <p>Because they are veins</p> Signup and view all the answers

    What is the percentage of red blood cells in lymph?

    <p>0%</p> Signup and view all the answers

    Which proteins have an easier time getting through the capillaries?

    <p>Small proteins like albumin</p> Signup and view all the answers

    Why is it important that there is less protein in lymph than in blood?

    <p>Because it affects the osmotic pressure of the blood</p> Signup and view all the answers

    What is the approximate amount of lymph produced per day?

    <p>3 liters</p> Signup and view all the answers

    Which of the following is NOT a characteristic of lymph?

    <p>It has a higher concentration of protein than blood</p> Signup and view all the answers

    What is the reason why some fluid gets taken back up into the blood vessel?

    <p>Because of the higher concentration of proteins in the blood</p> Signup and view all the answers

    What is the ratio of albumin to immunoglobulin in lymph compared to blood?

    <p>Higher in lymph</p> Signup and view all the answers

    What happens to the protein concentration as fluid gets squeezed out of the capillaries?

    <p>It decreases</p> Signup and view all the answers

    What is the primary reason why lymph has a lower concentration of protein than blood?

    <p>Because water gets out more easily than protein</p> Signup and view all the answers

    What is the function of the osmotic pressure in the blood vessel?

    <p>To pull fluid back into the blood vessel</p> Signup and view all the answers

    Study Notes

    Lymph and Blood Composition

    • Lymph is the fluid that comes from blood vessels and is squeezed out through the little holes between capillaries
    • Lymph is only called lymph once it gets into the lymphatic vessels, before that it's called extracellular fluid
    • The composition of lymph is similar to blood plasma, minus red blood cells
    • Lymph has about a half to a third the amount of protein compared to blood

    Blood Composition

    • Blood consists of about 40-45% red blood cells, 45% by volume
    • Blood also contains water, proteins (of varying sizes), and other substances like glucose, fats, etc.

    Lymph Production

    • About 20 liters of lymph is squeezed out of blood vessels per day
    • 17 liters of lymph comes back into the blood vessels, leaving a net 3 liters of lymph produced per day

    Lymph Composition Variations

    • Lymph composition varies depending on the location in the body
    • In the small intestine, lymphatic vessels (lacteals) take up a lot of fats and chylomicrons, so lymph coming from there has a higher composition of fats
    • In the liver, lymph has a higher concentration of proteins, up to 10 times more than lymph coming from other places

    Lymphatic System

    • Lymph vessels, including lacteals, eventually join up and come together to return to the blood circulation
    • The merged lymph fluids with different compositions enter the veins and go back to the heart

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Explore the composition of lymph and blood, including their differences in protein content and red blood cells. Learn about the formation of lymph and its journey through the lymphatic vessels.

    More Like This

    Use Quizgecko on...
    Browser
    Browser