Which of the following types of skin infections is also known as "mycoses"?

Proteins present in the blood that contain antibodies are known as:

A) aqueous solutions B) isotypes C) globulins D) antigens

The thickening of the spinal cord in the neck region is called the ________ enlargement and contains the motor neurons that control the muscles of the arms.

Fill in the blank(s) with the appropriate word(s).