Answer:
The “lub” is the first heart sound, commonly termed S1, and is caused by turbulence caused by the closure of mitral and tricuspid valves at the start of systole. The second sound,” dub” or S2, is caused by the closure of aortic and pulmonic valves, marking the end of systole.
Infectious diseases are transmitted from person to person by direct or indirect contact. Certain types of viruses, bacteria, parasites, and fungi can all cause infectious disease. Malaria, measles, and respiratory illnesses are examples of infectious diseases.
Answer:
The vaccine that protect humans from the h1n1 virus is called Panvax vaccine or swine flu vaccines.
Explanation:They are inactivated H1N1 virus vaccines used for immunization of individuals 6 months of age and older against influenza disease caused by H1N1 2009 virus.
Answer:
B
Explanation:
Nursing students are not prepared to enter the work force before they begin their professional studies and clinical expeience this is thepurpose of the program to prepare them to enter the workforce
