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Aliun [14]
3 years ago
11

In the respiratory system certain structures allow air to pass from the trachea to the lungs. They are lined with thin muscles a

nd coated with epithelial cells. These structures are called
A. bronchial tubes.
B. alveoli.
C. bronchioles.
D. lobules.
Health
1 answer:
steposvetlana [31]3 years ago
4 0

Answer:

I think my answer is

C. bronchioles.

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Explanation:

1. where the nail is formed- nail matrix

2. white crescent shape on the nail matrix- lunula

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Further Explanation:

Nails begin growing out the nail matrix this matrix creates this matrix forms new skin cells which forces all the cells all that sells out creating nails those injuries to mail to the nail bed orders orders or issues affecting the metrics often can lead to destruction of nail growth

The nail plate is immediately viewable with the naked eye, and covers the nail bed, which is the region where the nail sticks to the finger. Over this section is the lunula, the white half moon shapes at the base of the nail . The nail matrix  is the region directly before the lunula the germinal matrix below the lunula and closest to the knuckle where most of the nail  production occurs.  The periosteum, are structures surrounding nail plateswhile  the cuticle is a region of skin which protects the nail matrix where nails grow out of the finger. Every month nails typically grow up to 3 to 4 mm.

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