Topic 12 - Cardiovascular System Flashcards
Cardiovascular System Overview
- heart, blood vessels, blood
- transport: gases, nutrients, hormones, wastes, heat
- protection: disease, fluid loss (clotting)
Heart
in a cavity called the mediastinum
( = space between lungs within thoracic cavity)
Heart
Coverings = Pericardium
- what is surrounding heart?
- how many layers?
- what is in between ______ layers?
- double-walled sac surrounding heart
- 3 layers
- between pericardial layers = pericardial cavity with serous fluid (lubricates)
double walled sac surrounding heart
pericardium
what are the 3 layers of the pericardium?
- fibrous pericardium
- serous pericardium
- parietal pericardium
- visceral pericardium also called epicardium
fibrous pericardium
- outermost pericardium = dense irregular CT
- anchors to surrounding structures
- e.g. diaphragm, great vessels (aorta, vena cava, etc)
what kind of tissue is the outermost layer of the fibrous pericardium?
dense irregular CT
function of fibrous pericardium?
anchors to surrounding structures
e.g. diaphragm, great vessels (aorta, vena cava, etc).
what anchors to surrounding structures?
fibrous pericardium
serous pericardium
2 parts
- parietal pericardium
- visceral pericaridum
serous pericardium ► parietal pericardium
- fused to?
- fused to fibrous pericardium
- fibrous pericardium + parietal pericardium = pericardial sac
serous pericardium ► visceral pericardium
- also called?
- fused to?
- also called epicardium
- fused to heart surface, so is part of heart wall
between pericardial layers = ?
pericardial cavity with serous fluid (lubricates)
heart wall
name the 3 parts
- epicardium
- myocardium
- endocardium
heart wall ► epicardium
name the tissue
stratified squamous epithelium and CT
myocardium
- also called?
- name the tissue
- arranged in name shape/pattern here, reinforced with name tissue here
- also called cardiac muscle
- arranged in spiral/circular pattern, reinforced with CT
heart wall ► endocardium
- name the tissue(s)
- simple squamous epithelium and CT
- epithelium named endothelium - lines inner surface of heart and ALL blood vessels
stratified squamous epithelium and CT
a) epicardium
b) myocardium
c) endocardium
epicardium
arranged in spiral/circular pattern, reinforced with CT
a) epicardium
b) myocardium
c) endocardium
myocardium
also called cardiac muscle
a) epicardium
b) myocardium
c) endocardium
myocardium
simple squamous epithelium and CT
a) epicardium
b) myocardium
c) endocardium
endocardium
name the chambers and associated blood vessels of the heart (4)
- right atrium
- left atrium
- right ventricle
- left ventricle
Right atrium
- inferior and superior vena cava
- coronary sinus (posterior)
Left atrium
- 4 pulmonary veins
right ventricle
pulmonary trunk - divides to form 2 pulmonary arteries
left ventricle
aorta
inferior and superior vena cava is part of the
a) right atrium
b) left atrium
c) right ventricle
d) left ventricle
right atrium
the coronary sinus is part of the
a) right atrium
b) left atrium
c) right ventricle
d) left ventricle
right atrium
4 pulmonary veins are of part the
a) right atrium
b) left atrium
c) right ventricle
d) left ventricle
left atrium