A&P 22.3 Mastering

The classic pathway of complement activation begins when the protein C1 binds to

An antibody attached to an antigen

The body's innate defenses include all of the following except

Antibodies (Actually include: -the skin -inflammation -interferon -complement)

The effects of activating the complement system include all of the following except

Inhibition of the immune system

Immunity that is genetically determined and present at birth is called ________ immunity.

Innate

A sample of John's blood shows a high level of pyrogens. This would indicate that John

Is running a fever

An inflammatory response is triggered when

Mast cells release histamine and heparin

The phagocytic antigen-presenting cells belong to the ________ group.

Monocyte-macrophage

Various types of macrophages are derived from

Monocytes

Plasma contains ________ special proteins that form the complement system.

More than 30

The cells that perform immunological surveillance are the ________ cells.

NK

The release of endogenous pyrogen (or interleukin-1) by active macrophages would

Produce a fever

Leslie has a severe sore throat and the lymph nodes in her neck are swollen. This would indicate that

The lymph nodes contain an increased number of lymphocytes.

Examples of physical barriers against pathogens include

-Epithelia -Sebaceous glands -Epidermal layers -Mucus

Innate defenses include

-Inflammation -Physical barriers -Phagocytic cells -Interferons

Inflammation produces localized

-Redness -Heat -Swelling -Pain

Fever is the maintenance of body temperature greater than

37.2 degrees Celsius (99 degrees Fahrenheit)

Microphages include

Both neutrophils and eosinophils

Histamine increases blood flow and vascular permeability. This would account for all of the following changes that occur during inflammation except

Chemotaxis of phagocytes

Each of the following is a physical barrier to infection except

Complement (Actual physical barriers: -epithelium -body hair -secretions -basement membranes)