What are the main subtypes of T-cells

Question 1

T-cell subtypes

Answer 1

Naive t cell, Cytotoxic t cells, Helper t cells, Regulatory t cells, Memory t cells

Question 2

Naive t cells

Answer 2

Responds to new pathogens that the immune system has not yet encountered by looking for antigen presenting cells. Once found the naive cell receives a signal to mature into an effector cells which can be cytotoxic, helper and regulatory

Question 3

Cytotoxic T cells

Answer 3

Have the primary job to kill toxic/target cells. Upon recognition, their purpose becomes the removal of virally infected cells, bacteria and tumour fragments through apoptosis

Question 4

Helper t cells

Answer 4

Extremely important to cell immunity because they are required for most adaptive immune responses. They become activated when presented with antigens, then they multiply and secrete cytokines that summon macrophages and cytotoxic t cells to infected site.

Question 5

Regulatory t cells

Answer 5

Tasked with stopping an autoimmune response once the threat has been eliminated. Reg t cells stop helper and cytotoxic t cells from taking up space or accidentally attacking healthy cells until they go through apoptosis

Question 6

Memory t cells

Answer 6

Formed after an infection and are extremely important because they have the ability to expand into large numbers of effector T cells upon exposure to familiar antigens. They remember pathogens and infectious cells faster than others