The tough, thin outer membrane covering the bones is called the periosteum.
Answer:
ik the second blank is proximal
Explanation:
Im not sure about the first
Answer:
b) blastic red blood cell (RBC).
Explanation:
In excess of 340 blood group antigens have now been described that vary between individuals. Thus, any unit of blood that is nonautologous represents a significant dose of alloantigen. Most blood group antigens are proteins, which differ by a single amino acid between donors and recipients. Approximately 1 out of every 70 individuals are transfused each year (in the United States alone), which leads to antibody responses to red blood cell <u>(RBC) alloantigens</u> in some transfusion recipients. When alloantibodies are formed, in many cases, RBCs expressing the antigen in question can no longer be safely transfused. However, despite chronic transfusion, only 3% to 10% of recipients (in general) mount an alloantibody response. In some disease states, rates of alloimmunization are much higher (eg, sickle cell disease). For patients who become alloimmunized to multiple antigens, ongoing transfusion therapy becomes increasingly difficult or, in some cases, impossible. While alloantibodies are the ultimate immune effector of humoral alloimmunization, the cellular underpinnings of the immune system that lead to ultimate alloantibody production are complex, including antigen consumption, antigen processing, antigen presentation, T-cell biology.
People who can get the flu shot:
Different flu shots are approved for people of different ages. Everyone should get a vaccine that is appropriate for their age.
There are inactivated influenza vaccines (IIV) that are approved for people as young as 6 months of age.
Some vaccines are only approved for adults. For example, the recombinant influenza vaccine (RIV) is approved for people aged 18 years and older, and the adjuvanted and high-dose inactivated vaccines are approved for people aged 65 years and older.
Pregnant women and people with certain chronic health conditions can get a flu shot.
Most people with egg allergy can get a flu shot.
People who SHOULD NOT get the flu shot:
Children younger than 6 months of age are too young to get a flu shot.
People with severe, life-threatening allergies to flu vaccine or any ingredient in the vaccine. This might include gelatin, antibiotics, or other ingredients. See Special Considerations Regarding Egg Allergy for more information about egg allergies and flu vaccine
https://www.cdc.gov/flu/prevent/egg-allergies.htm.
