Skip to main content
Indietro

Anatomy & Physiology: Endocrine System and Blood Components

I pulsanti di controllo sono stati cambiati in modalità "navigazione".
1/20

Termini in questo insieme (20)

  • What are endocrine glands?
    Endocrine glands are ductless glands that secrete hormones directly into the bloodstream to regulate body functions.
  • Which gland secretes insulin and what is its function?
    The pancreas secretes insulin, which lowers blood glucose levels by facilitating cellular glucose uptake.
  • What hormone does the thyroid gland secrete and its primary function?
    The thyroid gland secretes thyroxine (T4) and triiodothyronine (T3), which regulate metabolism and energy production.
  • Name the hormone secreted by the adrenal medulla and its role.
    The adrenal medulla secretes adrenaline (epinephrine), which prepares the body for 'fight or flight' by increasing heart rate and blood flow.
  • What are the main components of blood?
    Blood is composed of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).
  • What is the primary function of red blood cells?
    Red blood cells transport oxygen from the lungs to body tissues and carry carbon dioxide back to the lungs.
  • List the five types of white blood cells.
    The five types are neutrophils, lymphocytes, monocytes, eosinophils, and basophils.
  • What is the function of neutrophils?
    Neutrophils are the first responders to infection and perform phagocytosis to destroy bacteria and debris.
  • What role do lymphocytes play in the immune system?
    Lymphocytes include B cells and T cells, which are responsible for antibody production and cell-mediated immunity.
  • How do monocytes contribute to immunity?
    Monocytes differentiate into macrophages and dendritic cells that engulf pathogens and present antigens to lymphocytes.
  • What is the function of eosinophils?
    Eosinophils combat parasitic infections and modulate allergic inflammatory responses.
  • What do basophils do in the immune response?
    Basophils release histamine and other chemicals during allergic reactions and inflammation.
  • What are platelets and their function?
    Platelets are cell fragments that initiate blood clotting to prevent bleeding.
  • What determines a person's blood type?
    Blood type is determined by the presence or absence of specific antigens (A, B) on red blood cells and the Rh factor.
  • What antibodies are present in type A blood plasma?
    Type A blood plasma contains anti-B antibodies.
  • What antibodies are present in type B blood plasma?
    Type B blood plasma contains anti-A antibodies.
  • What antibodies are present in type AB blood plasma?
    Type AB blood plasma contains no anti-A or anti-B antibodies.
  • What antibodies are present in type O blood plasma?
    Type O blood plasma contains both anti-A and anti-B antibodies.
  • How does the Rh factor affect blood typing?
    The Rh factor is a protein; if present, blood is Rh positive, if absent, Rh negative, affecting compatibility in transfusions.
  • Why is blood typing important before transfusions?
    Blood typing prevents immune reactions by ensuring donor and recipient blood types are compatible.