Inhalation in Humans Is Achieved by

question 4

Multiple Choice

Inhalation in humans is achieved by

• A) contraction of back muscles.
• B) relaxation of back muscles.
• C) relaxation of the diaphragm and muscles between the ribs.
• D) contraction of the diaphragm and muscles between the ribs.

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Definitions:

Retinas

The light-sensitive layer of tissue at the back of the inner eye, essential for converting light into neural signals for vision.

Ciliary Body

The ciliary body is a part of the eye that includes the ciliary muscle, which controls the shape of the lens, and the ciliary epithelium, which produces the aqueous humor.

Choroid

A layer of the eye between the retina and the sclera, rich in blood vessels, providing oxygen and nutrients to the inner parts of the eye.

Lens

A piece of transparent material, typically glass or plastic, that refracts or focuses light rays, used in glasses and cameras.