--%>
Assignment Help - homework help

Is epithelium vascularized

Is epithelium vascularized? How do oxygen and nutrients reach the epithelium? Why is this characteristic an important evolutionary acquisition?

E

Expert

Verified

Epithelia are not vascularized (that is, capillaries do not directly accomplish their cells). The epithelium exchanges substances through diffusion with the connective tissue located under it. Since the epithelia are not vascularized minuscule skin wounds or scratches which take place all the time do not trigger bleeding and do not expose the blood to contamination from exterior agents. This is a significant protective strategy introduced by evolution.

   Related Questions in Biology

  • Q : Characterization of symmetry and

    Describe the characterization of symmetry and nervous system in echinoderms?

    		•
  • Q : Importance of Departmentation Need or

    Need or importance of Departmentation The basic need for Departmentation arises because of specialization of work and the limitation on the number of subordinates th

    		•
  • Q : Types of neurons which participate in

    Write down the types of neurons which participate in spinal arch reflex? Where are their cell bodies located?

    		•
  • Q : Draw the cell at metaphase Consider a

    Consider a cell with a diploid chromosome number of 4 (2n=4), one pair of the chromosomes is metacentric, the other is acrocentric. The metacentric is labeled a1a1 while the acrocentric is labeled B1B1.  Answer the following questions. a. Draw the cell at metaphase

    		•
  • Q : Cellular osmotic regulation-mineral

    Write down the main mineral salts responsible for cellular osmotic regulation?

    		•
  • Q : Effects of Conflict - Organizational

    Conflict is often seen by participants as destructive, but this is a limited view. In fact, if all conflict with coworkers is avoided, each party is likely deprived of useful information about the other's preferences and view. Conflict is not all bed, but rather may result In either productive or

    		•
  • Q : How extracorporeal digestion related to

    How is the extracorporeal digestion related to the predation in arachnids?

    		•
  • Q : How neural impulse is transmitted from

    Describe the structure via which the neural impulse is transmitted from one cell to the other? Also name their parts?

    		•
  • Q : DNA fingerprint Explain the fact of

    Explain the fact of Molecular Biology upon which the DNA fingerprint is based?

    		•
  • Q : Philosophy assignment this is a

    this is a philosophy  assignment This assignment will be evaluated for both persuasiveness and required elements. Marking rubric will be 10pts for each correct fallacy. 20pts for overall persuasi

    		•