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The tissue that forms a loose fitting sac around the heart is | Pericardium
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The sketelon of the heart consists of fibrous connective tissue in the interventricluar septum and fibrous connective tissue encircling the heart__________ | Valves
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When the ventricular walls contract, the bicuspid and tricuspid valves_________ | Closes
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The pain associated with the condition called angina performs usually is caused by an obstruction in an artery that supplies the__________ | Heart
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The___________ is the potential space between them parietal and visceral pericardial membranes | Pericardical cavity
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Blood is supplied to the myocardium by means of the_________Arteries | Coronary
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The_____________drains blood from the wall of the heart into the right atrium | Coronary sinus
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The __________ node is a structure that consists of self-exciting tissue | S-A
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Impulses carried to the heart by means of fibers that secrete acetylcholine are parasympathetic impulses and cause the heart rate to_____________ | Decrease
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The blood pressure in the systemic arteries is greatest during_________systole | Ventricular
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In an ECG pattern, the P wave is caused by_____________of atrial muscle fibers. | Depolarization
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In an ECG pattern, the T wave is caused by_____________of ventricular muscle fibers | Polarization
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In an ECG the pattern, the P-Q interval indicates how long it takes for the cardiac impulse to travel from the__________ | S-A node through the A-V node
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The term used to describe an abnormally slow heart rate is___________ | Bradycardia
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Ventricular_______________ would produce the most life-threaten condition | fibrilation
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Both A-V node and_________fibers might serve as a secondary pacemaker for the heart | Perkins
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The SA node relays nerve impulses into the AV bundle of the interventricular septum and the AV node is responsible for the rhythmic contractions of the heart | False
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When the left ventricle contracts, blood passes into the__________ | Aorta
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___________is blood vessel that serve as a blood reservior | Veins
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The T wave of an ECg pattern represents the repolarization of the___________ | Ventricles myocardium
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Plasma proteins that remain in blood capillaries help to maintain the osmotic pressure of the____________ | Blood
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The density of capillaries within a tissue varies directly with the tissue's rate of___________ | Metabolism
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Molecules within the blood are forced out through the walls of capillaries as a result of osmotic pressure | False
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Venules continue from capillaries to forms veins, which carry blood back to the atria | True
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Veins function as blood reservoirs whenever blood pressure increases by venous walls constricting. | True
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The blood vessels whose walls are thin enough to allow exchange of gases between the blood and tissue fluid are__________ | Capillaries
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______________Law of the heart holds that the greater the length of myocardial fibers, the greater the force with which they contract | Starling
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High blood pressure, lack of physical exercise and__________ are factors that seems to increase the susceptibility to atherosclerosis | Obesity
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The aorta is the largest artery within the____________circuit | systemic
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Branches of the aorta are the right coronary artery, Brachiocephalic artery and the left___________artery | Subclavian
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The descending aorta divides near the brim of the pelvis to form the right and left | common iliac arteries
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Blood from the face and scalp is drained by the_________jugular vein | external
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The___________ vein is the longest vein in the body | great saphenous
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The structure of a lymphatic vessel is most similar to that of a____________ | veins
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The two collecting ducts that drains the lymphatic trunk are the _________ducts and right lymphatic duct | Thoracic
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If lymphatic tissue is removed from an axillary region, the arm on that side is likely to become____________ | edematous
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Lymph is_____________ that has entered a lymphatic capillary | tissue fluid
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The movement of lymph through lymphatic vessels is called the ______________ | hilum
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The spleen functions as a blood reservoir and is responsive to low oxygen concentration and contains numerous_____________ | Macrophages
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Thymosin is thought to stimulate the activity of the thymus gland | false
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Older red blood cells may be destroyed in the spleen | true
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The cells that are primarily responsible for immunity are___________and macrophages | lymphocytes
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Disease causing agents such as viruses and bacteria are called__________ | Pathogen
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The foreign of non self proteins that trigger immune responses to the presence___________ | viruses
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The most active phagocytic cells found in circulating blood are___________ and monocytes | neutrophils
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the widely distributed phagocytic cells that remain fixed in position constitute the _______________tissue | reticuloendothelial
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Immunity is an example of a specific body___________ mechanism | defense
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T-lymphocytes are responsible fro Cell-_________________ immunity | Mediated
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The type of immunoglobulin found in the secretions of exocrine gland is ________ | IgA
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The type of resistance that develops as a result of developing a disease i Naturally acquired________immunity | active
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The normal immune response require the presence of both___________ and B-cells | T cells
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As a result of an allergen antibody reaction, Mast cells release______________ | histamine
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a newborn infant may have some defense against digestive and respiratory disturbances because of IgA obtained from its mothers_______________ | milk
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the HIV viruses that cause acquired immune deficiency syndrome may infect _____________ cells endothelia cells and neuroglial cells | T helper
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When an HIV virus infect a body cell viral RNA is used to synthesize viral ____________ | DNA
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In recent years the largest group of_______________ patients has been homosexual and bisexual males | AIDS
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In an autoimmune disease the ______________ response is directed toward self substances | immune
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All of these are________ diseases Juvenile rheumatoid arthritis and multiple sclerosis and insulin dependent diabetes mellitus | autoimmune
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During the primary immune response B lymphocytes give rise to plasma cells | True
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As a result of the allergen antibody reaction mast cells release histamine | True
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An immunoglobulin molecule is an antigen secreted by T lymphocytes | False
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Active immunity involves a person becoming immune to a pathogen as a result of having a disease | False
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AIDS is caused by a virus that attacks complement enzyme | False
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Systemic Iupus erythematosus is an example of an autoimmune disease that affect the skeleton muscles only | False
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T helper cells release hormone like substance called__________ | lymphokines
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During the primary immune response B cells give rise to _____________cells | Plasma
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Immunoglobulins are contained within the____________ fraction of plasma proteins | gamma globulin
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A substance that can stimulate a primary immune response but is unable to produce the symptoms of a disease is an____________________ | vaccine
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A group of lymphocytes that originate from a single early cell is termed an_______________ | Clone
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Following a primary immune response the B cell and T cells that remain dormant but are able to response to antigens encountered in the future are called____________cells | memory
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The correct sequence for the layers within the walls of the alimentary canal from inside to outside is____________________ membrane submucosa muscular layer serous layer | mucous
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Peristalsis occurs in the digestive tract from the _____________to the anus | Pharynx
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The organs of the alimentary canal are innervated by_________________ as well as by parasympathetic nerve fibers | sympathetic
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Peristalsis is defined as a mixing movement that forces food through the alimentary canal being mixed with digestive enzymes | False
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_____________is a wavelike propelling movement that forces food through the alimentary canal | Peristalsis
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The teeth that are best adapted for bitting off relatively large pieces of food are the________________ | Incisors
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Microorganisms promote the development of dental cavities by utilizing carbohydrates and producing by products that are__________________ | Acidic
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Loss of teeth is most commonly associated with diseases of the dental ____________ and gums | pulp
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The salivary enzyme amylase functions to digest____________ | carbohydrates
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Because of their location swollen palatine tonsils may interfere with both breathing and ___________ | swallowing
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A hiatal hernia is due to a weakness of the________________ | diaphragm
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Gastrin which is secreted by stomach cells functions to Increase the secretions of the ___________ glands | gastric
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The main part of the stomach is called the_____________ | body
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Cholecystokinin secretion from the intestinal wall is stimulated by the presence of ____________ in the small intestine | fat
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A relatively new treatment in the management of gastric ulcers is a drug that inhibits the productions of HCI in the stomach I a person took this medication for a long period the digestion of_____________would be affected the most | proteins
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Heartburn is usually caused by effects of gastric juice on the _______________ | esophagus
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Cholecystokinin a hormone released from intestinal mucosa by the presence of fats stimulates the gallbladder to contract and release bile into the duodenum | True
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The ________ sphincter a valve that controls the movement of food between the stomach and the small intestine | pyloric
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Intrinsic factor is necessary for the normal absorption of ______________ from the small intestine | vitamin B12
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The vomiting center is located in the ________________ of the brain | Medulla Oblongata
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______________ is a protein splitting enzyme found in pancreatic juice | Trypsin
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The condition called acute pancreatitis is often caused by the conversion of trypsinogen to ________________ | trypsin
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The liver functions to form glucose from non carbohydrates store vitamin______ and destroy damaged red blood cells | D
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__________ salt constituent of bile has a digestive function | Bile
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Digestion of _________ would be affected the most if the liver were severely damaged | lipids
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Type B hepatitis can be transmitted by means of_____________ activity blood transfusion and saliva | sexual
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Jaundice which is characterized by a yellowish tinge to the tissue is due to an increased blood concentration of ___________ pigments | Bile
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gallstones are usually composed of________________ | cholesterol
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