How
How does the immune system work globally?
It locates foreign microorganisms, damaged cells, and mutant cells and activates a process to eliminate them.
What is PTSD?
PTSD is a disorder that arises from a traumatic stressor.
What is the definition of Lymph Nodes?
Lymph nodes are small structures that work as filters for harmful substances. They contain immune cells that can help fight infection by attacking and destroying germs that are carried in through the lymph fluid. There are hundreds of lymph nodes throughout the body (doesn't have to be exact but has to have the same concept).
Where does self-recognition occur?
In the Thymus.
Which has a worse effect on the immune system? Acute or Chronic Stress?
Chronic Stress
How does the immune system defend against foreign substances?
Non-specific and specific responses.
What are some emotional difficulties does stress leads up to?
Anxiety, and Depression.
What is the definition of immunity?
the quality or state of being immune especially: a condition of being able to resist a particular disease especially through preventing the development of a pathogenic microorganism or by counteracting the effects of its products — see also active immunity, passive immunity.
Where is MCH I proteins found?
On nucleated cells (only).
How are T cells activated?
Being exposed to antigens.
How does stress influence the immune system?
Through the peripheral nervous system and secretion of hormones.
What is the immune system?
It is made up of tissues and organs and processes that help protect the body from invasion.
What is the definition of stress?
The degree to which you feel overwhelmed or unable to cope as a result of pressures that are unmanageable.
Where are MHC II proteins found?
Antigen-presenting cells.
What are the three R's to the immune response?
Recognize
React
Remember
How are ulcers and stress-related?
Stress can influence the increase in smoking, alcohol-factors that can cause ulcers.
What is the lymphatic system?
The form in which the immune system is spread.
What's the definition of an Immunity System?
Tissues, organs, and processes that protect the body from invasion by foreign material (viruses, bacteria) and remove worn out, damaged, or mutant cells
Where are Antigen-presenting cells found?
Epidermis, dermis, and lymph.
What is the importance of self-tolerance?
The T cells must lack reactivity to peptide fragments from your own proteins.
How is diabetes related to the immune system?
Stress may contribute to the development of diabetes in infancy by reducing the efficiency of the immune system.
What are Lymphocytes?
Lymphocytes are a type of leukocytes that consist of T cells, B cells, and Natural killer cells.
Define immunological memory.
When the immunity system has/stores a memory from a previously encountered foreign antibody.
Where does stress occur in the brain?
The main parts of the brain that are responsible for our reactions to stress include the hypothalamic-pituitary–adrenal axis, the amygdala, and the prefrontal cortex.
True or false?
The brain has a poor immune system.
TRUE;
This is because of the blood-brain barrier that blocks some cytokines from entering the brain to allow efficient immune cell signaling