COURSE ONE - PART 1 Flashcards
THE ATRIA ARE ________ CHAMBERS
FILLING
THE VENTRICLES ARE ________ CHAMBERS
PUMPING
THE _______ ATRIUM AND VENTRICLE ARE LOCATED MORE ANTERIOR
RIGHT
THE _____ ATRIUM AND VENTRICLE ARE LOCATED MORE POSTERIOR
LEFT
THE RIGHT VENTRICLE PUMPS BLOOD TO THE _________ CIRCULATION
PULMONARY
THE LEFT VENTRICLE PUMPS BLOOD TO THE _________ CIRCULATION
SYSTEMIC
CARDIOVASCULAR SYSTEM
- HEART AND BLOOD VESSELS
- CARRIES OXYGEN, GASES, NUTRIENTS, & OTHER SUBSTANCES THROUGHOUT THE BODY
CONTRACTION
SYSTOLE
RELAXATION
DIASTOLE
2 DIFFERENT TYPES OF VALVES
- ATRIOVENTRICULAR VALVES
- SEMILUNAR VALVES
ATRIOVENTRICULAR VALVES
- TRICUSPID VALVE
- MITRAL VALVE
SEMILUNAR VALVES
- PULMONIC VALVE
- AORTIC VALVE
Circulatory system is a __________ circuit. An obstruction of flow at any point will cause blood to back up behind it.
continuous
Pulmonary circulation is composed of:
- A PUMP (RT VENTRICLE)
- PULMONARY ARTERY
- PULMONARY CAPILLARIES
- PULONARY VEINS
PULMONARY CIRCULATION (ORDER)
- Right heart receives DEOXYGENATED blood from systemic circulation,
- Passes through right atrium, through TV into RV, through pulmonic valve into pulmonary artery.
- Travels through lungs - becomes OXYGENATED
- Returns to left heart through FOUR pulmonic veins
PULMONARY CAPILLARIES
- Deoxygenated blood pumped to capillaries in lungs
- Carbon dioxide is removed from blood
Exhaled with breathing
carbon dioxide
Inhaled with breathing
oxygen - to be transported by blood throughout the body
Systemic circulation is composed of:
- A PUMP (LT VENTRICLE)
- AORTA AND ARTERIAL BRANCHES
- SYSTEMIC CAPILLARY NETWORK
- CEREBRAL, PERIPHERAL & ABDOMINAL VEINS
- SUPERIOR AND INFERIOR VENA CAVA
SYSTEMIC CIRCULATION (ORDER)
- Left heart receives OXYGENATED blood from pulmonary circulation
- Blood enters Lt atrium through FOUR pulmonary veins
- Through MV into LV
- Contraction of LV through AoV into Aorta - travels to body’s organs and systems
- Capillary networks in tissues and organs - exchange of gases and nutrients - oxygen used by body
- Deoxygenated blood returned to Rt Atrium via SVC & IVC
