Lecture 4 Flashcards
what dies the cardiovascular system consist of?
blood vascular and lymphatic (vascular) systems
what is the blood vascular system?
a continuous loop, closed supply and drainage system
what is the lymphatic (vascular) system?
a one way system, open entry drainage system
what does the supply path consist if
only arteries
where are arteries situated and why
best to avoid damage as they are high pressure so damage could be life threatening
where do arteries change name
at each major brarnch
why do some structures often have two sources of supply
because if one gets damaged the other will still be able to supply
what is the exchange network?
capillaries of varying degrees of permeability
what is the drainage pathway and how many pathways does this consist of?
3 pathways for drainage
- deep veins
- superficial veins
- lymphatics
what is the pressure of veins like
much less pressure than arteries, same volume
where does the base of the heart sit
between ribs 2 and 3
where does the apex of the heart sit
in line with the midclavicular line and in between ribs 5 and 6
the right atrium receives ……
superior vena cava, inferior vena cava, coronary sinus
the left atrium receives ……
four pulmonary veins
where does the superior vena cava receive blood from
the head, neck, arms and chest
