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Exam 4
right answers
67
Anatomy
Undergraduate 1
05/03/2009

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Term
an adult heat with a patent (open) foramen ovale would determine a hole or opening between which two heart chambers?
Definition
right atrium and left ventricle
Term
which of the following are components of the cardiovascualr system
Definition
blood vessels, heart, blood
Term
which of the following vessels carries blood away from the heart
Definition
pulmonary artery
Term
the first part of the hearbeat (the libb) is due to the closing of the ___ valves. the second aprt of the hearbeat (the dupp) is due to the closing of the___ valves.
Definition
atrioventricular/semilunar
Term
the layer of the heart that forms a smooth, protective lining of the heart chambers and valves is the ____
Definition
endocardium
Term
the ____ has the thickest wall because it pumps blood to the ____
Definition
left ventricle/body
Term
which of following contains blood with low oxygen content.
Definition
pulmonary artery
Term
which of the following vessels deliver blood to the right atrium
Definition
superior vena cava, inferior vena cava, and coronary sinus
Term
the ____ layer of an artery contains the greatest amount of smooth muscle
Definition
tunica media
Term
which type of vessel has the greatest ability to vasodilate and vasoconstrict
Definition
muscular artery
Term
which of the following is the hearts pacemaker?
Definition
SA node
Term
a unique venous system called the ______ carries blood driectly from the intestines to the liver for filtering, rather than directly into the inferior vena cava.
Definition
hepatic portal system
Term
where is the heart located?
Definition
mediastinum
Term
the three arteries that arise from the aortic arch are the left subclavian, left common carotid and ____
Definition
brachiocephalic trunk
Term
which structure anchors the heart in place and prevents over-filling?
Definition
fibrous pericardium
Term
what is the correct route that a drop of blood would follow as it flows to the heart from the hand through the following vessels?
Definition
ulnar vein, brachial vein, subclavian vein, axillary, brachiocephic vein
Term
the sternocostal surface of the heart is primarily composed of the:
Definition
right ventricle
Term
what is not true about the posterior interventicular groove?
Definition
contains the great cardiac vein
Term
which structure is important to prevent valve prolapse?
Definition
chordae tendinae
Term
during the cardiac cycle, when both the atria and the ventricles relaxed and filling with blood?
Definition
late ventricular diastole
Term
what part of the hearts conduction system triggers atrial systole?
Definition
SA node
Term
the cardiac plexus does not contain:
Definition
preganglionic sympathetic fibers
Term
what is it called whe the heart beats too quickly and the ventricles cannot fill with blood due to the increased heart rate?
Definition
tachycardia
Term
a capillary is composed of only the:
Definition
tunica interna
Term
what is the correct flow of blood through hte heart into the pulmonary circulation?
Definition
right atrium, tricuspid, right ventricle, pulmonary semilunar valve, pulmonary trunk, lungs
Term
the very first structures to branch off the aorta is/are the:
Definition
coronary arteries
Term
which of the following is not a branch off of the abdominal aorta?
Definition
intercostals arteries
Term
what is the correct route that a drop of blood would follow as it flows from the aorta to the foot?
Definition
femoral artery, popliteal artery, anterior tibial artery, internal iliac artery
Term
which of the following veins does not run with an artery?
Definition
jugular vein
Term
the walls of the lymphatic vessels are similar to those of the cardiovascular _____
Definition
veins
Term
which of the following does not have MALT (musocsa-associated lymphoid tissue)
Definition
circulatory system
Term
the lymphatic duct empties directly into the _____
Definition
subclavian veins
Term
which ara below is not drained by the thoracic duct?
Definition
right arm
Term
which of the following is a mechanism for moving lymph fluid?
Definition
musculoskeletal pump
Term
which of the following components of the lymphatic system is larger in a child than an adult?
Definition
thymus gland
Term
which structure does not have internal valves?
Definition
lymphatic capillaries
Term
which of the following is not a paired lymphatic trunk?
Definition
intestinal
Term
which of the following is a primary lymphoid tissue?
Definition
thymus gland
Term
metastatic breast cancer would be most likely detected in ____ lymph nodes.
Definition
axillary
Term
which of these is not a function of the lymphatic system?
Definition
production and distribution of red blood cells
Term
the portions of the respiratory system capable of gas exchange include the:
Definition
respiratory bronchioles, alveolar ducts, and alveoli
Term
the upper respiratory system includes all of the following except
Definition
trachea
Term
the floor of the internal nose:
Definition
is also the hard palate
Term
which of the following does not form part of the nasal septum
Definition
inferior nasal conchae
Term
functions of the nose include
Definition
olfactory reception, resonance of speech sounds, filtration of incoming air, warming of incoming air, moistening of incoming air
Term
which of the following statements is correct regarding olfactory epithelium?
Definition
it is found on the superior nasal conchae and superior portion of the nasal septum
Term
which of the following are openings into the nasopharynx
Definition
auditory tube and internal nares
Term
the epiglottis
Definition
consists of a leaf-shaped piece of hyaline cartilage, attached posteriorly to the thyroid cartilage, serves to route food and liquids into the esophagus
Term
which of the following is true concerning the larynx?
Definition
during swallowing, the larynx connect the cartilages to eachother
Term
the ____ is an internal feature of the lower respiratory tract located at the bifurcation of the trachea into bronchi
Definition
carnia
Term
which of the following is not true of the trachea
Definition
it is lined by a mucous membrane containing pseudostratified ciliated columnar epithelium, goblet cells, and clara cells
Term
which of the following cell types would most likely be found in the respiratory bronchioles
Definition
clara cells
Term
the _____ is/are the first portion of the respiratory tract to enter lung tissue
Definition
primary bronchi
Term
which of the following do not contain cartilage
Definition
alveolar ducts, respiratory bronchioles, and terminal bronchioles
Term
a 75 year old patient has been suffering from lung cancer located located near the cardiac notch, a deep indentation on the lung. which of the following lobes is most likely to be excised?
Definition
superior lobe of the left lung
Term
a 31 year old man involved in a severe automobile accident and suffered a laceration to the left primary bronchus. the damaged primary bronchus:
Definition
is longer that the right primary bronchus
Term
which of the following features of the lungs face the heart?
Definition
costal surface, hilus
Term
a 44 year old man with a stab wound was brought to the emergency department, and a physician found that the patient was suffering from a laceration of his right phrenic nerve. which of the following conditions has likely occurred?
Definition
loss of function of the diaphragm
Term
the accumulation of fluid within the pleural cavity is called
Definition
hydrothorax
Term
as a molecule of O2 passes from alveolar air into the blood, it passes through the layers of the alveolar capillary membrane in what order?
Definition
alveolar epithelial wall, epithelial basement membrane, capillary basement membrane, capillary endothelial wall
Term
which of the following is not true of the diaphragm?
Definition
in the relaxed state, the diaphragm is a flat, horizontal sheet.
Term
expansion and inflation of the lungs during inspiration is a result of
Definition
contraction of the main inspiratory muscles, surface tension between the parietal and visceral pleura, atmospheric pressure
Term
all intrinsic muscles of the larynx, which are responsible for abduction and adduction of the vocal (true) cords, have a common attachment to which of the following cartilages
Definition
arytenoids
Term
the principle muscles of inspiration are the _____ and _____.
Definition
diaphragm/external intercostals
Term
a decrease in lung volume during normal expiration is mainly due to
Definition
relaxation of inspiratory muscles, the inward pull of surface tension, recoiling of elastic fibers in the lungs
Term
stimulation of the vagus nerve constricts bronchioles and increases mucous secretion
Definition
true
Term
which of the following provides motor innervation to the muscles of respiration?
Definition
intercostal nerves, phrenic nerves.
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