Unit 4 Flashcards
The aorta arises from the
Left ventricle
The pulmonary veins bring blood to the
Left atrium
The mitral valve is located between which structures
Lt atrium and Lt ventricle
The tricuspid valve is located between which structures
Rt atrium and Rt ventricle
The first vessel to branch off the aortic arch is the
Brachiocephalic artery
The coronary sinus bring blood FROM the heart muscle into the
Rt atrium
The pulmonary trunk exits the heart via the
Rt ventricle
The superior vena cava and the inferior vena cava brings blood back to the
Rt atrium
Which of the following is NOT considered a mediastinal structure?
Lungs
The medial surface of each lung where the bronchi, great vessels, nerves and lymph vessels enter and exit
Hilum
The lining or covering of the heart is called the
Pericardium
The ______________ layer of the heart has a parietal and visceral layer
Serous
The _______________ is the layer of heart muscle
Myocardium
The four___________________________ bring oxygenated blood to the left atrium
Pulmonary veins
The outer membrane of the thoracic cavity
Parietal pleura
The left ventricle makes up the ___________ of the heart .
Apex
The ridge at the point of bifurcation of the trachea is the
Carina
The ____________________ is the endocrine gland located within the thoracic cavity.
Thymus
Each lobe of the lung is separated by
Fissures
What are the openings or the passages for the vessels and organs from the thoracic cavity to the abdominal cavity referred to as?
Hiatus
What prevents the backflow of blood within the heart?
valves
The right lung has ______ lobes, while the left lung has
3,2
The functional unit of the respiratory system is the
alveoli
What is the large indentation on the medial surface of the left lung:
cardiac notch
