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BIO202 RIO MID Term

Chapt. 4,5,6,7 MidTerm Review - Mid

QuestionAnswer
Excess tissue fluid. Edema
All reticular lymphoid organs are composed of reticular connective tissue except? Thymus
Large isolated clusters of lymphoid follicles, structurally similar to tonsils, that are located in the wall of the distal portion of small intestine Peyer's Patches
Lymph nodes, spleen and tonsils. Lymphoid Organs
These types of cells differentiate in the thymus. T Cells
Cells that recognize antigens and produce plasma cells. B Cells
The lighter-staining center of a lymphoid follicles. Germinal Centers
Receives lymph drainage from the digestive organs. Cisterna Chyli
Internal portion of a lymph gland where cells are arranged in a cordlike fashion. Medulla
Lymph exits the convex side of the lymph node through a number of these vessels. Afferent Lymphatic Vessels
Lymph exits the convex side of the lymph node through a number of these vessels. Efferent Lymphatic Vessels
Small organs associated with lymphatic vessels are termed: Lymph nodes
The distal portion of the small intestine contains clumps of lymph follicles called: Peyer's patches
The thymus is most active during: Childhood
The lymphatic capillaries are: More permeable than blood capillaries
Lymph leaves a lymph node via: Efferent lymphatic vessels
By secreting hormones, the thymus causes what cells to become immunocompetent? Lymphocytes
When the lymphatics are blocked due to tumors, the result is: Severe localized edema distal to the blockage
What is a bubo? An infected lymph node
The lymph tissues found within the walls of the small intestine are called: Peyer's patches
Particularly large clusters of lymph nodes occur in all of the following locations except the: Lower extremities
Digestive tract-associated lymphatic tissue includes all of the following except: Islets of Langerhans
Functions of the lymphatic system include: Transport of excess tissue fluid to the blood vascular system
The tonsils located at the base of the tongue are the: Lingual tonsils
Which of the following is not a normal component of lymph? Red blood cells
A sentinel node is: The first node to receive lymph from an area suspected to be cancerous
Select the correct statement about lymph transport. Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles
Select the correct statement about lymphocytes. B cells produce plasma cells, which secrete antibodies in to the blood
Select the correct statement about lymphoid tissue. Lymphoid tissue is predominately reticular connective tissue
A ring of lymphoid tissue that appears as a swelling of the mucosa in the oral cavity is called a(n): Tonsil
Blood enters which of these vessels during ventricular systole? Aorta and pulmonary arteries
The tricuspid valve is closed: When the ventricle is in systole
The second heart sound is heard during which phase of the cardiac cycle? Isovolumetric relaxation
Stenosis of the mitral valve may initially cause a pressure increase in the: Pulmonary circulation
If we were able to artificially alter the membrane permeability of pacemaker cells so that sodium influx is more rapid: Slow calcium channels in the pacemaker tissue would be cycling at a greater rate
Which of the following are involved directly in pulmonary circulation? Right ventricle, pulmonary artery, and left atrium
Histologically, the _________ is squamous epithelium supported by a sparse connective tissue layer. Tunica intima (interna)
A thrombus (blood clot) in the first branch of the arch of the aorta would affect the flow of blood to the: Right side of the head and neck and right upper arm
Cerebral blood flow is regulated by: Intrinsic autoregulatory mechanisms
A patient with essential hypertension might have pressures of 200/120 mm Hg. This hypertensive state could result in all of the following changes except: Decreased size of the heart muscle
This wave indicates depolarization of the atria just before atrial contraction. P Wave
A double walled fibrous sac that encloses the heart. Pericardium
The largest lymphatic vessels are called Ducts
Lymph collecting or pooling from the lower extremities would first pool in the _____before moving up. Cisterna Chili
The ____- are the simplest lymphoid organs and are found at the entrance of the pharynx Tonsils
The appendix, tonsils, and Peyer’s patches collectively are called _____. MALT
Highly specialized lymph capillaries called _____ are present in the villi of the intestinal mucosa. Lacteals
The thoracic duct of the lymphatic system empties into the _____. Subclavian Vein
Lymph nodes have more_____ lymphatic vessels than ____ lymphatic vessels. Afferent, Efferent
Tonsils have blind-ended structure called______. Crypts
Lymphatic _____ are formed from the union of the largest collecting vessels. Trunks
Stores Blood Platelets Speen
Protein containing fluid within the lymphatic vessels. Lymph
Receives lymph from most of the body. Thoracic Duct
Isolated clusters of lymph follicles found in the wall of the small intestine. Peyer's Patches
Small organs intimately associated with lymphatic vessels. lymph nodes
First line of defense Skin and mucous membranes
Second line of defense Inflammatory response
Third line of defense Immune response
Nonspecific defense system Inflammatory response and skin and mucous membranes
Specific defense system Immune response
Area where B cells become immunocompetent. bone marrow
Area where T cells become immunocompetent. thymus
Area where activated immunocompetent B and t cells recirculate. blood and lymph
Area seeded by immunocompetent B and T cells. lymph nodes, spleen and other lymph tissues
Area where antigen challenge and clonal selection are most likely to occur. lymph nodes, spleen and other lymph tissues
The process whereby neutrophils and other white blood cells are attracted to the inflammatory site is called: Chemotaxis
Which of the following is not a function of the inflammatory response? replaces injured tissue with connective tissue
Which of the following is characteristic of antibodies? composed of heavy and light polypeptide chains
B lymphocytes develop immunocopetence in the: Bone Marrow
Which of the following is not a type of T cell? Antigenic
Immunological memory response that recognizes and mounts an attack on antigens previously encountered
Specificity ability to distinguish between closely related antigens
Recognition of self from non-self ability to recognize proteins on own tissue cells as self and not attack them
Autoimmune disease an inability of the immune system to recognize self, resulting in attack of self cells by the immune system
Created by: Christopher Dietrich Christopher Dietrich on 2009-05-09



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