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Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Larynx, trachea, bronchi, and lungs with an expanded view showing the structures of an alveolus and Larynx, trachea, bronchi, and lungs with an expanded view showing the structures of an alveolus and
Thick filaments are bipolar structures created by the association of many myosin molecules Thick filaments are bipolar structures created by the association of many myosin molecules
Immunoglob​ulin Structures Immunoglob​ulin Structures
structures of the Neuron structures of the Neuron
Chemical structures of four amino acids Chemical structures of four amino acids
Cilia Cilia
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