Human Anatomy Cardiovascular System
Cardiovascular System
1. Heart pumps blood.
2. Arteries transport blood away from heart.
3. Veins transport blood toward heart.
Pulmonary Circuit
Arteries always transport blood away from heart. Pulmonary arteries transport de-oxygenated blood.
Vein...
1. Heart pumps blood.
2. Arteries transport blood away from heart.
3. Veins transport blood toward heart.
Pulmonary Circuit
Arteries always transport blood away from heart. Pulmonary arteries transport de-oxygenated blood.
Veins always transport blood towards the heart. Pulmonary veins transport oxygenated blood.
Systemic Circuit
Systemic veins transport De-oxygenated blood, and Systemic arteries transport oxygenated blood.
Heart Basics
• Pumps ~ 2000 gallons/day thru 60,000 miles of blood vessels, ~ fist sized, Located left of midline &
atop diaphragm, Slightly tilted, 4 distinct chambers , One-way valves.
Location of the heart in the thorax
Heart is contained in pericardium.
The layers of the pericardium and of the heart wall
, Fibrous pericardium, Serous pericardium -with three layers parietal pericardium, visceral pericardium,
and pericardial cavity, Myocardium, and Endocardium.
Parietal pericardium
Inner layer of sac, secretes serous fluid.
Visceral pericardium
outer layer of heart =epicardium, secretes serous fluid
Pericardial cavity
space between parietal & visceral; filled with serous fluid and functions are lubrication.
Fibrous pericardium
Tough outer layer, anchors heart prevents overfilling; made of dense irregular CT.
Myocardium
Cardiac muscle tissue
Endocardium
Simple squamous epithelium.
Superior & Inferior vena cava
large veins, return deoxygenated blood from body to the heart.
Tricuspid valve
Right atrioventricular valve, prevents backflow into Right Atrium when Right ventricle contracts. Cusps
formed of endocardium - sandwich of epithelium and dense ct.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller CertifiedGrades. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
