quiz 2
Which vein is coming back into the heart, returning blood on the left side, oxygenated
Pulmonary V
Is the pulmonary A oxygenated or deoxygenated?
deoxygenated ***
- Lines chambers and valves
- Endothelial cells
- barrier between vessels and blood
- anti-inflammatory and anticoagulant properties
- we want this to protect us from infections (thin layer)
Endocardium
Brachiocephalic and subclavian A go to which body part?
Arm
Does the pulmonary vein return oxygenated or deoxygenated blood from the left side?
Oxygenated ***
The common carotid artery goes to which body structure?
Straight shot to the head
* Fibrous (outermost) layer of sac
* Parietal (cavity wall) layer of sac
* Fluid within pericardial space/cavity (mesothelial cells)
Pericardial sac
T/F: the pulmonary A is deoxygenated because it has not touched the lung yet
True
- AKA visceral pericardium
- coronary vessels
- Fat, loose connective tissue, and mesothelial cells
- Added protection
Epicardium
Name the three aortic arch branches
1. Brachiocephalic
2. Common carotid
3. Subclavian
Which artery off the subclavian A is used for bypass surgery (on the LEFT side)
Internal thoracic A ***
Which side of the heart works harder and why?
Left side works harder because it must get the blood out into the body and extremities.
- 4 chambers/4 valves
- Cardiomyocytes (firing cells; pacemaker of the body) and fibroblasts
- contractile and pacemaker function
- Structural integrity --> collagen production
Myocardium
The pulmonary circuit (deoxygenated) via superior vena cava, inferior vena cava, pulmonary trunk arteries are related to which side of the heart?
RA --> RV --> Lungs
How much thicker is the L ventricle than the R ventricle?
3x thicker
T/F: valves are pressure regulated
True
The systemic circuit (oxygenated) via pulmonary veins and aortic root (artery) is which side of the heart?
LA --> LV --> body
Is the pulmonary circuit oxygenated or deoxygenated?
Deoxygenated
When are all 4 of the valves closed and taking in blood?
During diastole (refill)
Is the systemic circuit oxygenated or deoxygenated?
Oxygenated
Pectinate mm. and atrial appendages are part of what?
R and L atria
Tendon in the heart that must remain under tension by the papillary muscles; maintain stability
Chordae tendonae
This structure lines the ventricles for electrical conduction
Purkinje fibers
Trabeculae carneae, purkinje fibers, interventricular septum are all part of what?
R and L ventricles
T/F: AV valves move blood from top (atria) to the bottom (ventricle)
True