A&P 2: Lecture Ch. 18 "Heart"

Lecture Quiz 1 / Lecture Exam 1

42 cards   |   Total Attempts: 182
  

Cards In This Set

Front Back
What is the hearts size? location? orientation within the location?
Size: human fist
Location: Mediastinum (medial cavity of the thorax)
Orientation: Obliquely (slightly to the side, 2/3 to left)
Heart is enclosed in double sacs called....
what are the two different layers called?
The pericardium
Fibrous Pericardium and Serous Pericardium
The serous pericardium is comprised of what 2 layers?
The parietal layer and visceral layer
What layer lines the fibrous pericardium?
Parietal layer of serous pericardium
What layer covers the external heart surface.....
what is it also referred to as?
Visceral layer of serous pericardium
the epicardium
A film of serous fluid that allows the heart to work in a virtually frictionless environment is located where....
Pericardial cavity (between parietal and visceral serous membranes)
Name the layers of the heart wall from deep to superficial (3)....and continue to outermost layer
Endocardium / Myocardium / Epicardium (visceral layer of serous pericardium) / Pericardial Cavity / Parietal layer of Serous Pericardium / Fibrous Pericardium
Which layer of the heart wall is responsible for the bulk of the heart wall and bulk of the contractions?
Myocardium
Which layer of the heart wall is often infiltrated with fat...especially in older people?
Epicardium
What are the 3 vessels that carry blood into the heart via the right atrium?
Superior Vena Cava
Inferior Vena Cava
Coronary Sinus
What are the 4 pulmonary veins that enter the left atrium? (2 names though)
Right Pulmonary Veins (2)
Left Pulmonary Veins (2)
Blood is pumped to the lungs from what part of the heart?
Right Ventricle
The vessel carrying unoxygenated blood from the heart to the lungs is called what? and splits into what?
Pulmonary Trunk, which splits into the Right and Left Pulmonary Arteries
Oxygenated blood returns from the lungs to the heart via what vessels and into what?
Via the Right and Left Pulmonary Veins into the Left Atrium
Oxygenated blood in the Left Atrium goes where?
Left Ventricle