vascular recruitment

Examples of vascular recruitment in the following topics:

• Blood Flow in Skeletal Muscle

  • This vascular recruitment increases the capillary surface area within a muscle, allowing for enhanced oxygen exchange with the muscle fibers, prolonging the period of aerobic respiration and thus muscle output, and facilitating a more rapid removal of inhibitory waster factors such as lactic acid, reducing fatigue.

• Inflammation

  • Inflammation is part of the biological response of vascular tissues to harmful stimuli.
  • Inflammation is part of the complex biological response of vascular tissues to harmful stimuli, such as pathogens, injury or trauma, and irritants.
  • The next step of acute inflammation is an increase in vascular permeability due to inflammatory mediator activity, which causes the blood vessels to become more permeable.
  • Neutrophils are recruited to the site of inflammation by various cytokines.
  • Other inflammatory mediators, such as TNF-alpha and IL-1, increase the expression of adhesion molecules on vascular endothelial cells.

• Seedless Vascular Plants

  • Seedless vascular plants, which reproduce and spread through spores, are plants that contain vascular tissue, but do not flower or seed.
  • The vascular plants, or tracheophytes, are the dominant and most conspicuous group of land plants.
  • By the late Devonian period, plants had evolved vascular tissue, well-defined leaves, and root systems.
  • Seedless vascular plants are plants that contain vascular tissue, but do not produce flowers or seeds.
  • In seedless vascular plants, such as ferns and horsetails, the plants reproduce using haploid, unicellular spores instead of seeds.

• Capillaries

  • During embryological development, new capillaries are formed by vasculogenesis, the process of blood vessel formation occurring by de novo production of endothelial cells and their formation into vascular tubes.
  • A capillary bed can consist of two types of vessels: true capillaries, which branch mainly from arterioles and provide exchange between cells and the circulation, and vascular shunts, short vessels that directly connect arterioles and venules at opposite ends of the bed, allowing for bypass.
  • When heart rate increases and more blood must flow through the lungs, capillaries are recruited and are distended to make room for increased blood flow while resistance decreases.

• The Major Divisions of Land Plants

  • Land plants, or embryophytes, are classified by the presence or absence of vascular tissue and how they reproduce (with or without seeds).
  • Plants that lack vascular tissue, which is formed of specialized cells for the transport of water and nutrients, are referred to as non-vascular plants or bryophytes.
  • Non-vascular embryophytes probably appeared early in land plant evolution and are all seedless.
  • Lycophytes and pterophytes are both referred to as seedless vascular plants because they do not produce any seeds.
  • Land plants are categorized by presence or absence of vascular tissue and their reproduction with or without the use of seeds.

• Immune Complex Autoimmune Reactions

  • They involve the deposition of antigen/antibody complexes mainly in the vascular walls, serosa (pleura, pericardium, synovium), and glomeruli.
  • Activation of complement primarily results in cleavage of soluble complement proteins forming C5a and C3a, which activate recruitment of PMNs and local mast cell degranulation (requiring the binding of the immune complex onto FcγRIII), resulting in an inflammatory response.

• Employee Recruitment

  • There are many recruitment approaches as well.
  • In-house personnel may manage the recruitment process.
  • In the smallest organizations, recruitment may be left to line managers.
  • Employment agencies are also used to recruit talent.
  • Social media is also playing a vital role in recruitment in this century.

• The Complement System

  • However, it can be recruited and brought into action by the adaptive immune system.
  • C5a is an important chemotactic protein, helping recruit inflammatory cells.
  • Both C3a and C5a have anaphylatoxin activity, directly triggering degranulation of mast cells, as well as increasing vascular permeability and smooth muscle contraction.

• Angiogenesis and Disease

  • Bone marrow cell recruitment also participates in tumor angiogenesis .
  • Diverse chemoattractant factors promote the recruitment and infiltration of bone marrow cells to the tumor microenvironment where they suppress the antitumor immunity or promote tumor angiogenesis and vasculogenesis
  • As malignancy develops, cells progress from a prevascular stage (normal to early hyperplasia) to a vascular stage (late hyperplasia to dysplasia to invasive carcinoma).

• Recruiting workers

  • A good recruitment policy will do this in a timely, cost-efficient manner.
  • There are two principal ways to recruit workers: internally and externally.
  • External recruitment can be done in a variety of ways:
  • Before the emergence of the Internet, this was the most popular form of recruitment for organizations, but the decline of readership of newspapers has made it considerably less effective (Heathfield, Use the Web for Recruiting: Recruiting Online).
  • Online recruitment.