Explain why a barrel chest is found in advanced emphysema
What will be an ideal response?
In emphysema, the alveoli become hyperinflated and often rupture, creating large air pockets in the lungs. Air can be inhaled but not exhaled. The chronic overexpansion of the lungs deforms the thorax and creates a barrel chest.
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The over-the-counter trade name drug Remifemin is advertised to relieve the symptoms of menopause. It contains the herb known as ________
A) black cohosh B) snakeroot C) bugbane D) all of the above
Epstein–Barr virus-infected cells are poor targets for CD8 T-cell killing because _____
a. the virus inhibits MHC class I expression b. the virus escapes from the phagosome into the cytosol c. infected cells do not express any viral proteins during latency d. the proteasome cannot generate viral peptides for presentation by MHC class I molecules.
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Indicate whether this statement is true or false.
Inflammation of the membrane surrounding the heart is known as ________
A) valvulitis B) pericarditis C) mitral stenosis D) phlebitis