thorax chapter 6 test
the deep pockets or recesses of the pleural cavities are called the _______ and _______
costomediastinal and costodiaphragmatic recesses
where do the ribs attach to the spine?
costovertebral and costotransverse joints
the diaphragm attaches to the lumbar spine via two tendonous structures termed the ?
crura
what is the carina?
location where the trachea bifurcates into the left and right bronchi
what happens to the thymus gland after puberty?
it begins to shrink
what does thymosine do?
it is responsible for the development and maturation of lymphocytes
what is the main function of the thymus gland?
it is where leukocytes acquire means to chemically identify specific foreign invaders and where immature T-cells from marrow mave to mature
what do the pulmonary veins bring blood to?
left atrium
on which lung is the cardiac notch located?
left lung
where does the thoracic duct empty into?
left subclavian vein
the aorta arises from the_______
left ventricle
what makes up the apex of the heart?
left ventricle
what vessels carry blood from the lungs back to the heart?
pulmary veins
what four things bring oxygenated blood to the left atrium?
pulmonary veins
what chamber of the heart does dexoygenated blood first go?
right atrium
where does the right lymphatic duct empty into?
right subclavian vein
what is the pleura?
serous membrane lining the pleural cavity
what supplies blood to the right atrium and the right ventricle of the heart?
superior and inferior vena cava
the secondary bronchi will further divide into what?
tertiary or segmental lung
what chamber recieves oxygenated blood from the lungs?
the left atrium
where does the blood pumped by the right ventricle go?
the lungs
what vessels does the right ventricle pump blood thru?
the pulmonary arteries
which branch of the bronchi is wider, shorter and more vertical in orientation?
the right bronchi
what valve seperated the right ventricle and the pulmonary arteries?
the semi-lunar vavle
the aperture known as the _____________ allows for the passage of nerves, vessels, and viscera from the neck into the thoracic cavity
thoracic inlet
what does the thymus gland produce?
thymosine
what valve seperates the right atrium and the right ventricle?
tricuspid valve
what layer of the pleaura is the most inner and closely covers the lung and continues into fissures to cover individual lobes of the lung?
visceral layer
what is the serous membrane surrounding the herat called?
pericardium
how many pair of ribs are there?
12
how many thoracic vertebrae are there?
12
how many layers is the pleura?
2
how many lobes does the left side of the lung have?
2
how many lobes does the thymus gland have?
2
how many lobes does the right side of the lung have?
3
how many openings does the diaphragm have?
3
how many lobes does the heart have?
5
how many true rib pairs do people have?
7
what vessel carries blood from the left ventricle?
aorta
what are the openings in the diaphragm for?
aorta, inferior vena cava, and the esophagus
what can be found in the mediastinum?
aorta/greater vessels, heart, esophagus, trachea and diaphragm
the left ventricle pumps blood through what valve to the aorta?
aortic semi-lunar valve
where is the mediasteinum?
area between the lungs
collateral circulaion between the inferior vena cava and the superior vena cava is supplied by the _________
azygos veins
where is the thymus gland located?
beneath the sternum and above the trachea and heart
what vavle seperates the left atrium and the left ventricle?
bicuspid (mitral) valve
the first vessel to branch off the aortic arch is the __________
brachiocephalic artery
the superior vena cava is formed by the junction of the ____________
brachiocephalic veins
what are the three branches of the aorta?
brachiocephalic, left common carotid, and left subclavian artery
what is another name for the medial angle of the lung?
cardiophrenic surface
what is the lateral angle of the lung?
castrophenic sulcus
what does the right lymphatic duct do?
collects lymph from the right upper side of the body.
what is the chief muscle of respiration?
diaphragm
what does the thoracic duct do?
drains all of the lymph fluid from the tissues below the diaphragm and from the left side of the body above the diaphragm
it is located between the pericardium and the herat wall and is most prominent around the inflow and outflow of the heart?
endocardium
what does the thymus gland do from the gestation period to puberty?
establishes the immune system
what attaches to the manubrium?
first 2 pair of ribs and the clavicles
what acts as a passageway for vessels and nerves to enter and exit the lungs?
hilium
the thickest strongest muscle in the heart is located ________
in the left ventricle
what brings deoxygented blood to the right atrium?
inferior and superrior vena cava
what seperates the atria in the heart?
interatrial septum
what seperates the ventricles?
interventricular septum
what part of the body does the blood in the inferior vena cava come from?
lower portion of the body
within the mediastinum clusters of ______ are clumped around the great vessels, esophagus, bronchi, and carina
lymph nodes
what is the thoracic duct?
main vessel of the lymph system
what layer of the breast consists of glandular tissue< excretory ducts, and connective tissue?
mammory layer
what are the 3 parts of the sternum?
manubrium, body, and xiphoid
what is the middle muscular layer of the heart wall called?
myocardium
what are the two layers of the pleura called?
parietal and visceral layers
what is the outermost layer of the pleura called?
parietal layer
