Immunology Overview and Innate Immunity

<p>Second line of defense (B)</p> Signup and view all the answers

<p>Provides a protein barrier (C)</p> Signup and view all the answers

<p>Third line of defense (A)</p> Signup and view all the answers

<p>Tears from the lachrymal apparatus (A)</p> Signup and view all the answers

<p>Burns and cuts (D)</p> Signup and view all the answers

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

<p>They activate innate immunity. (C)</p> Signup and view all the answers

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

<p>It has a memory component. (D)</p> Signup and view all the answers

<p>They produce antibodies. (B)</p> Signup and view all the answers

<p>It lacks a memory component. (B)</p> Signup and view all the answers

<p>The activation of innate immunity. (A)</p> Signup and view all the answers

<p>Skin and mucous membranes (B)</p> Signup and view all the answers

<p>It alters pH, preventing overpopulation by Candida albicans. (B)</p> Signup and view all the answers

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

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

<p>To engulf pathogens and present antigens. (C)</p> Signup and view all the answers

<p>They become macrophages upon entering body tissues. (A)</p> Signup and view all the answers

<p>Killing infected and tumor cells. (D)</p> Signup and view all the answers

<p>The engulfing of solid particles by a cell. (B)</p> Signup and view all the answers

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

The outermost layer of the skin, made of dead cells and keratin, forming a strong barrier against microorganisms.

The inner, thicker layer of skin, composed of connective tissue.

The inner, thicker layer of skin, composed of connective tissue.

A slightly viscous glycoprotein that traps and washes away microorganisms, produced by goblet cells.

An epithelial layer that lines the gastrointestinal, respiratory, and genitourinary tracts. It is a weaker physical barrier than the skin.

Tears produced by the lachrymal apparatus that dilute and wash away irritants and microorganisms from the eye surface.

Oil produced by the skin that helps fight bacteria by creating an acidic environment.

Sweat produced by the skin, containing chemicals that inhibit bacterial growth.

The second line of defense against pathogens that have bypassed the first line. It involves mechanisms like phagocytosis, inflammation, fever, and antimicrobial substances.

The process by which certain cells engulf and destroy solid particles, such as bacteria and cellular debris.

A complex response to tissue injury or infection, characterized by redness, swelling, heat, and pain.

An elevated body temperature that often accompanies infection, thought to help fight off pathogens.

Specialized white blood cells that engulf and destroy pathogens, playing a crucial role in innate immunity.

Highly phagocytic and motile white blood cells that are active in the early stages of infection.

White blood cells that release histamine, a substance involved in inflammation and allergic responses.

White blood cells that produce toxic proteins to fight off certain parasitic infections.

The study of how our body protects itself from harmful invaders like bacteria, viruses, and parasites.

The body's first line of defense against any pathogen. It's like a general alarm system, working quickly but without long-term memory.

The front line of innate immunity like skin and mucous membranes act as physical barriers to prevent pathogens from entering the body.

They are part of the second line of defense, actively engulfing and destroying pathogens. They're like tiny Pac-Man, gobbling up bad guys.

It's the body's response to injury or infection. It's like a red alert, bringing in more immune cells to fight the invaders. It's also how you get bruises and swelling!

It's the body's internal thermostat. It's like turning up the heat to make it harder for pathogens to survive.

It's the body's specific defense system. It learns and remembers specific pathogens and mounts a targeted attack.

They are specialized immune cells like B and T cells that remember specific pathogens, allowing for a faster and more effective response upon re-exposure. They're like your body's memory cells.