Blood Vessels Flashcards
Feeds the heart
Coronary arteries
Drains the heart
Cardiac veins
Three segments of Aorta
Ascending aorta
Thoracic aorta
Abdominal aorta
Main arterial branches of Aorta (3)
Brachiocephalic trunk
Left common carotid artery
Left subclavian artery
Arteries to head
Common carotid arteries (L, R)
Internal to Circle of Willis, external to skin and muscles of head and neck
Arteries to arms (3)
Axillary arteries (L, R) Brachial arteries (L, R) Subclavian arteries (L, R)
Segments of Aorta inferior to heart (2)
Thoracic aorta
Abdominal aorta
Arteries inferior to heart: to abdominal organs (4)
(Common) Hepatic artery
Renal arteries (L, R)
Celiac trunk
Mesenteric arteries (superior, inferior)
Arteries inferior to heart: to legs
Common iliac arteries (L, R)
Veins inferior to heart: from legs to inferior vena cava
Common iliac veins (L, R)
Veins inferior to heart: from intestines
Inferior/superior mesenteric veins
Vein inferior to heart: to liver
Hepatic portal vein
Vein inferior to heart: from liver to inferior vena cava
Hepatic vein
Veins inferior to heart: from kidneys to inferior vena cava
Renal veins (L, R)
Veins from head
Internal jugular veins (L, R)
External jugular veins (L, R)
Veins from arms (3)
Subclavian veins (L, R) Axillary veins (L, R) Brachial veins (L, R)
Veins from head & arms to superior vena cava
Brachiocephalic veins (L, R)
What does the “lub” sound represent?
The closing of the AV valves
What does the “dup” sound represent?
The closing of the semilunar valves at the end of systole
Systole
Heart contraction
Diastole
Heart relaxation
Sounds of Korotkoff
Thumping sound heard as pressure in cuff decreases
- Systolic at detection of sounds
- Diastolic as sounds disappear
Heart murmur
Abnormal or unusual heart sounds
Differences between arteries and veins
- Arteries bring blood away from the heart; veins bring blood toward the heart
- Arteries have a thicker tunica media
- Veins have a larger lumen
- Arteries’ tunica medias are wavy, bunched-up
Celiac trunk goes to…
Splenic artery
Gastric artery
Hepatic artery
Factors affecting BP
- Neural factors (parasympathetic nervous system)
- Renal factors (kidneys retaining/letting go of water)
- Temperature (cold = vasoconstricting, hot = vasodilating)
- Chemicals (epinephrine, nitotine, alcohol, histamine)
- Diet (low in salt, saturated fats, cholesterol lowers BP)