Neyland Actual Review Blood Vessels Test 3 Flashcards
(20 cards)
List 3 layers of blood vessels and what they
Tunica intima-inner
Tunica media-middle
Tunica adventicia- outer
These vessels are in the tunica media, mainly smooth, involuntary impulses allows change in diameter
These vessels are aka resistance vessels. Afterload is determined by this.(BP)
Arterioles
Vessell is aka as a capacitance vessell. These vessels store blood /60 percent of blood volume
Have valves. Aka capacity to store blood
Vein / venules
These vessels are conductance vessels. Move blood from 1 area to another
Arteries
These are aka exchange vessels
Capillaries
Major arteries of systemic circukation
Aorta and all major arteries arising from aorta
How many segments in aorta
3.
Ascending aorta
Aortic arch
Descending aorta
Lust body major arteries
Temporal Radial brachial Carotid Popliteal Dorsalis pedis Posterior tibial
What 2 major vessels hold 60 percent of blood volume. Systemic circulation
Superior vena cava (where blood draining fr head neck empties
Inferior vena cava blood draining fromlower part of body
What is inadequate venous return indicated by
Preload , end diastolic volume. Bp low weak pulse
Ex. The more the vebtricle stretches, the stronger the contraction.
If you have inadequate venous return, it is shown as weak heart rate and low bp.
What 2 sets of arteries supply the head and brain
Common Carotid arteries
Vertebral arteries
What circles around the base of the brain
The circle of willis
Where do vena cava carry blood to
Right atrium
How many types circulation
2
Pulmonic
Systemic
List blood supply of the liver
Hepatic artery- brings o2 rich blood to the liver
Portal vein carries blood from organs of digestion to liver
Blood flow through the portal vein to liver is called hepatic portal system
Hepatic veins carry blood from liver to inferior vena cava
What is pulmonary circulation
Carries blood from
r ventricle
to lungs and back to
left atrium
Smalles most numerius vessels connect arteries w veins. Provide every cell w continuous supply of oxygen
Capillaries
What is the larger circulation, provides blood supply to rest of body
Systemic circulation
Explain skeletal muscle pump
Veins/ valves/ squeeze veins blood flows to heart from feet etc
What forms circle of willis
Internal carotid arteries
Basilar artery
Blood here deains to jugular veins
