Transcript Heart - Hicksville Public Schools / Homepage

OBJ: Given notes, activity sheet SWBAT state the
functions of the hart and cardiovascular (circulatory
system) with 70% accuracy.
BRING IN TEXTBOOK
DN: Distribute CRE Review Sheets and Body’s Transport
System (Classwork)
ACT: Introduction to Circulatory System (Notes; HEART)
Complete Classwork Activity (Matching Column A to B)
& State Exam Questions; Review Results
HW: Text, read p.78-84; Complete Body Transport
System Booklet (HW Check tomorrow); CRE EXAM,
March 9; INERH Exam, March 20.
Circulatory
(Cardiovascular)
System: a tube
(transport) system
which carries
nutrients to body
cells and carries
away waste. Blood
moves through
these tubes
carrying nutrients
and waste as well
as contains cells
that fight disease.
Circulatory System Notes
Heart: consists of four
(4) chambers that
pumps blood through
out body
– Atria: upper chambers
that receives blood
– Ventricles: lower
chambers that pumps
blood away from
heart.
** RIGHT VENTRICLE:
pumps blood to
LUNGS
** LEFT VENTRICLE:
pumps blood to
BODY (AORTA)
RVL LVB
LUNGS
AORTA (Away)
BODY CELLS
RIGHT
BACKWARDS
LEFT
Circulatory System Notes
Pattern of Blood Flow:
• First Loop (right ventricle)
Heart
Lungs
• Second Loop (Left Ventricle; Aorta)
Heart
Body
Circulatory System Notes
Valve (veins): prevents backflow (due to
lower blood pressure)
Pacemaker: sends out electrical signal to
heart; heart muscle contracts regularly.
Blood Vessels Types:
Arteries: carries blood AWAY from heart
Veins: carries blood to heart; has VALVES
Capillaries: tiny thread-like vessels for nutrient &
waste exchange between blood and body cells.
Capillary
(nutrient & waste)
Exchange with
Tissue (Body) Cells
Higher
Pressure
Lower
Pressure
Capillary
(nutrient & waste)
Exchange with
Tissue (Body) Cells