Anatomy & Physiology Practice Quiz

Sophia was studying about the human body in her biology class. She learned that the lacrimal glands produce tears to moisten and cleanse the eye. Avery and Charlotte were having a debate about this. Avery thinks it's true, while Charlotte thinks it's false. Who is correct?

Answer explanation

A happy ending to a story, a sad break-up, an onion chopped into pieces—they all can trigger your tears.

Tears serve many purposes, and your eyes produce them all the time. In fact, you make 15 to 30 gallons of tears each year.

The sclera is interlaced with many blood vessels that nourish the eyes.

Rods in the retina are sensitive to color and are used mainly for vision when it is light.

The area of sharpest vision in the eye is the fovea centralis.

The vitreous humor is a clear, watery fluid that fills the space between the cornea and iris.

If light rays are not refracted correctly, vision is distorted or blurred.

Conjunctivitis is a noncontagious inflammation of the conjunctiva, usually caused by a bacteria or virus.

The ear is divided into two main sections: the outer ear and the inner ear.

The tympanic membrane separates the middle ear and inner ear.

General sense receptors for pressure, heat, cold, touch, and pain are located throughout the body.