Answer: Smoking damages the bronchial tree and makes it easier for viruses to cause infection. Smoking also slows down the healing time, so that it takes longer to get well.
Explanation:
When transferring to the floor using crutches, the patient lowers his body by leaning on the crutches on his weaker side, while bending the hip and knee of his weaker lower extremity. Thus, the correct option is B.
<h3>What is the significance of using crutches?</h3>
Crutches provide assistance in walking, moving, and leaning for a physically disabled patient or a physically weak patient.
When transferring to the floor, the patient normally exerts whole pressure on the crutches to bend their hip first and then the knee of his lower extremity.
Thus, the correct option is B.
To learn more about Crutches, refer to the link:
brainly.com/question/16700477
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<span>It is called Carabelli cusps. A Carabelli cusp is a
condition in which a person has an extra cusp on her molar. This usually seen
on the first molar of our teeth and rarely on the second and third molar.
Sometimes it also occurs on the other part of the teeth. This condition is
heritable, meaning it’s in your family genes; it can be passed through
families. This kind of condition is common for Europeans for about 75 out of
85% chances. Carabelli cusps comes with different sizes, it can be very large
or small.</span>