MHC class II molecules are loaded with exogenous antigen after the antigen has been digested into fragments within a phagolysosome. 

The retina is composed of two layers: an inner pigmented layer and an outer neural layer.

Choose the correct form of these irregular present tense verbs. Felipe casi nunca dice la verdad, pero yo siempre ________________ la verdad.

Which is not correct regarding the spleen?

The appendix contains lymphatic nodules.

Because numerous cutaneous and visceral sensory neurons conduct signals on _______ ascending tracts of the spinal cord, the brain sometimes falsely localizes the location of a pain stimulus.

As the eye adjusts to focus on a near object, the cornea must change shape because the lens is unable to.

These receptors detect specific molecules in our external and internal environments.

One of the functions of the spleen is phagocytosis of bacteria in the blood.

 In this sagittal view of the eye, what space does number 10 indicate?