CIRCULATORY SYSTEM Flashcards
consists of a network of vessels that circulates blood throughout the body, motored by the action of the heart.
CARDIOVASCULAR SYSTEM
the LARGEST VEIN of the body
INFERIOR VENA CAVA
it carries DEOXYGENATED back from the LOWER PART OF THE BODY to the RIGHT ATRIUM of the heart. This blood is carrying CARBON DIOXIDE.
INFERIOR VENA CAVA
ABOVE THE HEART and carries de-oxygenated blood from the HEAD & ARMS to the RIGHT ATRIUM of the heart.
SUPERIOR VENA CAVA
FLOW OF BLOOD IN PULMONARY CIRCULATION
lower part of the body - inferior vena cava - right atrium
head & arms - superior vena cava - right atrium
right atrium - tricuspid valve - right ventricle - pulmonary valve & pulmonary artery - lungs - exchange deoxy to oxy - pulmonary veins - left atrium - mitral valve - left ventricle - aortic valve - aorta
where does the blood exchanges the carbon dioxide it is carrying for oxygen
IN THE LUNGS
LARGEST ARTERY of the body
AORTA
curves in an inverted ‘U’ shape making an arch, and then descends downward.
AORTA
supplies blood to the RIGHT ARM and UPPER TORSO
RIGHT & LEFT SUBCLAVIAN ARTERY
supplies blood to the HEAD & NECK
RIGHT & LEFT COMMON CAROTID ARTERY
divides ng right subclavian artery and the right common carotid artery
BRACHIOCEPHALIC ARTERY (innominate artery)
means it is located below the clavicle… or collarbone
SUBCLAVIAN
The _________ leads DOWNWARD through the DIAPHRAGM and CHEST…and into the ABDOMEN.
DESCENDING AORTIC ARTERY
About 1/5 to 1/3 of the blood passes through the ______ into the KIDNEY.
RENAL ARTERY
The ______ is a FILTER, and takes some water and waste products OUT OF THE BLOOD. It excrete the waste products and water out of the body as URINE.
KIDNEY
the SPLIT of the descending aortic artery
AORTIC BIFURCATION
two branches of descending aortic artery
ILIAC ARTERIES
supplies blood to the LEFT PELVIS & LEG
LEFT ILIAC ARTERY
supplies blood to the RIGHT PELVIS & LEG
RIGHT ILIAC ARTERY
The iliac artery continues down into the leg as the _______ and its branches.
FEMORAL ARTERY
are ELASTIC TUBES that carry blood in PULSATING WAVES.
ARTERIES
The PEAK PRESSURE occurs during the heart’s contraction, and is called
SYSTOLIC PRESSURE
The MINIMUM PRESSURE occurs between contractions when the heart expands and refills, and is called
DIASTOLIC PRESSURE
side of forehead
TEMPORAL
neck
CAROTID
inside the elbow
BRACHIAL
thumb side of wrist
RADIAL
groin
FEMORAL
behind the knee
POPLITEAL
upper surface of foot
DORSAL PEDIS
The average pulse rate for a person who is
‘RESTING’, would be
70
The average pulse rate for a person during
exercise
130 - 140 bpm
(FIRST HEART SOUND) which is associated with the CLOSURE of the AV valves.
LUBB
(SECOND HEART SOUND) which is associated with the closure of the semilunar valves
DUPP
heard in the MID DIASTOLE due to the blood that fills the ventricles
THIRD HS
AKA Atrial Heart Sound, occurs when the atrium contracts and pumps blood to the ventricles. This sound is almost NEVER HEARD by the stethoscope.
FOURTH HS
Tricuspid valve is best heard in
right half or lower end of the sternum
Mitral valve is best heard in
apex
Pulmonary valve is best heard in
left medial 2nd intercostal space
Aortic valve is best heard in
medial 2nd right intercostal space
a WHOOSHING or SWISHING sound heard through a stethoscope when blood flows ABNORMALLY over your heart valves.
HEART MURMUR
A murmur is caused by
turbulent or abnormal blood flow
If blood is flowing more rapidly than normal, it can cause an
INNOCENT HEART MURMUR (normal / physiologic)
This type of murmur is common during:
* Childhood
* Exercise
* Growth spurts
* Pregnancy
* The first few days after a baby is born.
INNOCENT HEART MURMUR
Systolic and diastolic blood pressure can be measured in the ______ just above the elbow
BRACHIAL ARTERY
instrument used in measuring systolic & diastolic bp
SPHYGMOMANOMETER & STETHOSCOPE
blood pressure is written as ratio
systolic / diastolic
measurement of bp is expressed in
mm Hg
normal systolic pressure
100 - 140 mm Hg
normal diastolic pressure
60 - 90 mm Hg
The arteries branch off into even smaller vessels called
ARTERIOLES
smaller than arterioles
CAPILLARIES
act like ADJUSTABLE NOZZLES in the circulatory system, so they have the GREATEST INFLUENCE over BLOOD PRESSURE
ARTERIOLES
the SMALLEST of the BLOOD VESSEL, and the walls are so thin that molecules can pass through them. They branch out from the arterioles, passing next to the organs, intestines, and through all the cellular tissue.
CAPILLARIES
they provide the MEANS OF EXCHANGE, through the process of ABSORPTION
CAPILLARIES
The capillaries branching away from the arteries in
the ABDOMEN pass by the LIVER and INTESTINES, picking up
NUTRIENTS & WATER
The capillaries branching away from the arteries in the LUNGS absorb
OXYGEN
capillaries merge into bigger vessels called
VENULES
the vessels that are used to remove blood from the body FOR ANALYSIS
VEINS
the procedure where blood is extracted from veins for analysis is called
VENIPUNCTURE
the medical personnel that specializes in venipuncture is called a
PHLEBOTOMIST