Cognosco crossword

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Across
  1. 3. Which organ is impacted by 'pleurisy'?
  2. 5. class of enzymes responsible for electron transfer
  3. 6. catalyzes the first step in glycolysis
  4. 7. one of the two types of tissues in the spleen
Down
  1. 1. engulf and destroy foreign particles, such as bacteria
  2. 2. fibrous joint in which two adjacent bones are linked by a strong membrane or ligaments
  3. 3. lymphatic capillaries that are linning the small intestine to absorb digested fats
  4. 4. the ability of body to prevent and destroy pathogens