Thorax Sectional Anatomy (Ch. 6)
The secondary bronchi further divide into the _________
Tertiary or segmental bronchi
T/F : The inner surface of the fibrous pericardium consists of a doublelayered serous membrane termed the serous pericardium
True
T/F : The left pulmonary artery is shorter and smaller than the right pulmonary artery and is the most superior of the pulmonary vessels
True
T/F : The right coronary artery arises from the base or root of the aorta.
True
T/F : The right superior pulmonary vein passes anterior and inferior to the right pulmonary artery
True
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
Another name for the medial angle of the lung is the ________
Cardiophrenic sulcus
T/F : Each lung has an opening on its medial surface termed the hilum.
True
Mediastinal structures
Heart, Trachea,Thymus gland
The ________ is the area where vessels and nerves enter and exit the lungs
Hilum
The pulmonary veins bring blood to the
Left atrium
The aorta arises from the
Left ventricle
The thickest, strongest muscle in the heart is located in the
Left ventricle
Which of the following makes up the apex of the heart?
Left ventricle
Within the mediastinum, clusters of ________ are clumped around the great vessels, esophagus, bronchi, and carina.
Lymph nodes
The _________ layer of the breast consists of glandular tissue, excretory ducts, and connective tissues
Mammary
The _________ is the middle muscular layer of the heart wall
Myocardium
The ____________ supplies blood to the right atrium and right ventricle of the heart
Right coronary artery
__________ . is located between the pericardium and the heart wall and is most prominent around the inflow and outflow of the heart.
Subepicardial fat
Which of the following is located between the upper thoracic vertebrae and trachea
Azygos vein
Collateral circulation between the inferior vena cava and the superior vena cava is supplied by the:
Azygos veins
Deep pockets or recesses of the pleural cavities are the costomediastinal and _________ recesses
Costodiaphragmatic
The lateral angle of the lung is termed the ________
Costophrenic sulcus
The diaphragm is attached to the lumbar spine via two tendinous structures termed _________
Crura
Which of the following is the chief muscle of respiration?
Diaphragm
T/F : The trachea bifurcates into the left and right mainstem bronchi at approximately the level of T10
False—At approximately the level of T4-T5
T/F : The pulmonary semilunar valve is located at the juncture of the left ventricle and pulmonary trunk
False—It is located at the juncture of the right ventricle and pulmonary trunk.
T/F : The inferior lobe of the right lung is separated from the middle and superior lobes by the horizontal fissure.
False—The oblique fissure separates the inferior lobe of the right lung from the middle and superior lobes.
T/F : The visceral pleura, the outer layer of the pleura, is continuous with the thoracic wall and diaphragm and moves with these structures during respiration
False—The parietal pleura is the outer layer of the pleura
The heart is lined by a serous membrane called the__________.
Pericardium
The four ___________ bring oxygenated blood to the left atrium
Pulmonary veins
What is the function of the azygos venous system?
The azygos venous system provides collateral circulation between the inferior and superior venae cavae.
List the three main branches of the aortic arch.
The brachiocephalic trunk, left common carotid artery, and left subclavian artery are the three main branches of the aortic arch
The aperture known as________ the allows for the passage of nerves, vessels, and viscera from the neck into the thoracic cavity
Thoracic inlet
The thymus gland produces a hormone, ___________ , which is responsible for the development and maturation of lymphocytes.
Thymosin
T/F : During embryonic development an oval opening exists within the interatrial septum called the foramen ovale.
True
