Question

question 5
2.5 pts
which t cells lead to the destruction of foreign cells
helper t cells
regulatory t cells
cytotoxic t cells
helper b cells
question 6
2.5 pts
t cells circulate between the lymphatic and __________ system.
circulatory
digestive
endocrine
central nervous

Explanation:

Question 5

• Helper T cells assist other immune cells, not directly destroy foreign cells.
• Regulatory T cells regulate immune responses, not destroy foreign cells.
• Cytotoxic T cells (also called killer T cells) directly kill infected or foreign cells.
• Helper B Cells are B cells, not T cells, and help in antibody production.

• T cells move between the lymphatic system (lymph nodes, etc.) and the circulatory system (bloodstream) to patrol for pathogens.
• Digestive system is for digestion, endocrine for hormones, central nervous for nerve function—none relate to T cell circulation with lymphatic.

Answer:

C. cytotoxic T cells

Question 6