Yellow bone marrow contains a large percentage of fat.
One of the key and defining characteristics of innate immunity is that it creates stronger, faster, and more specific responses to invaders upon repeated exposure/infection.
Immunity is a defense system we are born with and it protects against all antigens. Innate immunity involves barriers that keep harmful materials from entering your body. Immunity forms the barrier of first line of defense in the immune response.
Four main components of immunity include effector cells, antimicrobial peptides, soluble mediators, and cell receptors. Innate immune responses rely on the body's ability to recognize conserved features of pathogens that are not present in the uninfected host.
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Bradycardia is the most ominous sign of impending cardiopulmonary arrest in infants and children.
Bradycardia is a slow heart rate. The hearts of adults at rest usually beat between 60 and 100 times a minute. The heart beats fewer than 60 times a minute.
Bradycardia can be a serious problem if the heart rate is very slow and the heart can't pump enough oxygen-rich blood to the body. If this happens, one may feel dizzy, very tired or weak, and short of breath. Sometimes bradycardia doesn't cause symptoms or complications.
Cardiopulmonary arrest is the cessation of adequate heart function and respiration and results in death without reversal.
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