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Kim Ferguson

Anatomy Week 11

QuestionAnswer
Identify the letter that indicates where lymph collected from the right arm enters the bloodstream. A
Identify the letter that indicates where most nutrient and waste exchange occurs between the tissue and blood. A
Identify the letter that indicates inguinal lymph nodes that filter lymph from the lower limbs. E
Identify the letter that indicates lymph nodes that direct lymph fluid to the jugular trunks. B
Identify the letter that indicates collagen fibers that anchor lymphatic capillaries to surrounding connective tissue. D
Identify the letter that indicates the first structure to receive lymph from both the lumbar and intestinal trunks and is located on the surface of L1 and L2 vertebrae. D
Identify the letter that indicates the smallest lymphatic vessel that collects lymph in the peripheral tissue. B
Identify the letter that indicates the large lymph vessel that drains three-quarters of the body. C
Identify the letter that indicates the unique arrangement of endothelial cells that make up lymphatic capillaries. E
Identify the letter that indicates a vessel that carries oxygenated blood to peripheral tissues. C
The movement of phagocytes from blood vessels to an inflammation site is called diapedesis.
Lymphocytes that kill many types of tumor cells and cells infected by different kinds of viruses are known as natural killer cells.
Which organ has several functions, including defense, hematopoiesis, red blood cell and platelet destruction, and blood reservoir? spleen
The _____ postulates that when an antigen enters the body, it selects the clone whose cells are committed to synthesizing its specific antibody and stimulates these cells to proliferate and to thereby produce more antibodies. clonal selection theory
Which of the following is a powerful poison that acts directly on any cell and quickly kills it? lymphotoxin
Which of these substances operate(s) immune mechanisms? sebum mucus enzymes hydrochloric acid in gastric mucosa all of the above
The internal environment of the human body is protected by the _____, which is(are) referred to as the first line of defense. skin
Because T cells attack pathogens more directly, T-cell immune mechanisms are classified as _____ immunity. cell-mediated
Bean-shaped structures located at certain intervals along the lymphatic system are lymph nodes.
Which protein interferes with the ability of viruses to cause disease? interferon
Lymphatics in the villi of the small intestines are called lacteals.
Masses of lymphoid tissue located in a protective ring under the mucous membranes in the mouth and the back of the throat are called tonsils.
Each cortical nodule is composed of packed lymphocytes that surround a less dense area called a germinal center.
During their residence in the thymus, pre-T cells develop into _____, cells that proliferate as rapidly as any in the body. thymocytes
_____ refers to a phenomenon in which the genetic characteristics common to a particular kind of organism provide defense against certain pathogens. Species resistance
The presentation of an antigen by an antigen-presenting cell activates the T cell. The cell then divides repeatedly to form a clone of identical sensitized T cells that form effector T cells and memory cells.
Recognition of antigens by antibodies occurs when an Antigen's epitopes fit into and bind to an antibody molecule's antigen-binding sites
The ingestion and destruction of microorganisms or other small particles is called phagocytosis.
The lymphatic system serves various functions in the body. The two most important functions of this system are fluid balance and immunity.
The primary organ of the lymphatic system is the thymus.
The body’s defense mechanisms can be organized into one of two major categories of immune mechanisms; these are innate and adaptive immunity.
Adaptive immunity, part of the body’s third line of defense, is orchestrated by two different classes of a type of white blood cell called the lymphocyte.
Pyrogen molecules trigger the fever response by promoting the production of prostaglandins.
A tumor of the lymphoid tissue is called lymphoma.
The functions of the lymph nodes are defense and hematopoiesis.
Molecules formed by the reactions of the complement cascade assemble themselves on the enemy cell’s surface, which results in cytolysis.
Chemotaxis is the process by which a cell navigates toward the source of the chemotactic factor by way of detecting and then moving toward higher concentrations of the factor.
Which antibody is synthesized by immature B cells and then inserted into their plasma membranes? immunoglobulin M
Activities that result in central movement or flow of lymph are called lymphokinetic activities.
Antibodies are proteins of the family called immunoglobulins.
Created by: Kferguson76
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