Homeostasis and Stress Response

<p>To restore homeostasis (D)</p> Signup and view all the answers

<p>Increased blood clotting factors (A)</p> Signup and view all the answers

<p>Epinephrine and norepinephrine (B)</p> Signup and view all the answers

<p>It provides a long-term, hormonal response to stress (B)</p> Signup and view all the answers

<p>Increased blood flow to the digestive system (D)</p> Signup and view all the answers

<p>To promote a state of relaxation and recovery (C)</p> Signup and view all the answers

<p>It stimulates the release of hormones from the adrenal glands (A)</p> Signup and view all the answers

<p>Active acquired adaptive immunity (B)</p> Signup and view all the answers

<p>Differentiate between host and foreign antigens (A)</p> Signup and view all the answers

<p>IgM (B)</p> Signup and view all the answers

<p>Type 1 hypersensitivity (D)</p> Signup and view all the answers

<p>IgG (A)</p> Signup and view all the answers

<p>Attacks CD4 cells and macrophages (D)</p> Signup and view all the answers

<p>IgA (A)</p> Signup and view all the answers

<p>To activate T lymphocytes (B)</p> Signup and view all the answers

<p>Reduces the ability to produce new lymphocytes (B)</p> Signup and view all the answers

<p>Injection of premanufactured immunoglobulins (D)</p> Signup and view all the answers

<p>T lymphocytes (C)</p> Signup and view all the answers

<p>MHC proteins present antigens to T lymphocytes, initiating an immune response. (A)</p> Signup and view all the answers

<p>By increasing the activity of the sympathetic nervous system, leading to increased blood flow and energy production. (B)</p> Signup and view all the answers

<p>Memory of previous pathogen encounters, allowing for faster and more efficient responses. (B)</p> Signup and view all the answers

<p>Increasing blood glucose levels and mobilizing energy reserves. (A)</p> Signup and view all the answers

<p>A person is able to fight off a common cold without experiencing any symptoms. (B)</p> Signup and view all the answers

<p>The complement system helps to activate and guide immune cells to sites of infection. (B)</p> Signup and view all the answers

<p>Increasing blood pressure and heart rate. (A)</p> Signup and view all the answers

<p>T lymphocytes (C)</p> Signup and view all the answers

<p>Immunization stimulates the body to produce antibodies that specifically target a particular pathogen. (A)</p> Signup and view all the answers

A state where prolonged stress depletes the body's recovery and defense mechanisms.

A hormone produced by the adrenal cortex that regulates stress responses and metabolism.

Drugs that mimic the activity of the sympathetic nervous system.

Natural painkillers produced by the body during stress or physical activity.

The body's ability to protect itself against specific pathogens or diseases.

The natural, nonspecific defense that we are born with, responding rapidly to pathogens.

Nonspecific barriers like skin and mucous membranes that prevent pathogen entry.

Specific and acquired immunity that develops after exposure to an antigen.

White blood cells that mature in the thymus and help kill infected cells.

The ability of T cells to recognize and respond to specific antigens.

The process of maintaining balance within the body's internal and external environment.

The control system that mediates reactions to stressors, involving physical, emotional, and behavioral changes.

A control system that opposes changes to maintain stability within the body.

A feedback mechanism that magnifies or increases change, leading to instability.

A three-step process explaining how the body responds to stress: Alarm, Resistance, Exhaustion.

A localized version of GAS, minimizing reaction to stress in a smaller area of the body.

The first stage in GAS where the body detects a threat and releases stress hormones.

A physiological response preparing the body to confront or escape danger during the Alarm Stage.

The second stage in GAS where the body selects defense strategies and begins recovery from the threat.

Hormones such as adrenaline, noradrenaline, and cortisol released during stress responses.

Type of immunity involving antibodies produced by B lymphocytes to fight extracellular pathogens.

A foreign substance that triggers an immune response, leading to antibody production.

The most common antibody, effective against viruses and bacteria, crosses the placenta.

T helper cells that help regulate immune responses, influencing other immune cells.

Immunity gained by receiving antibodies from another source rather than making them oneself.

The initial response of the immune system to an antigen, marked by IgM production.

Human Immunodeficiency Virus that attacks CD4 cells, weakening the immune system.

Cells that act as messengers between innate and adaptive immunity, activating T lymphocytes.

Immediate allergic reactions, often involving anaphylaxis.

Molecules that help the immune system differentiate between self and non-self cells.