CIRCULATORY SYSTEM, 5th Grade

CIRCULATORY SYSTEM

THE ORGAN SYSTEM THAT TRANSPORTS BLOOD THRUGH THE BODY

ALVEOLI

THIN WALLED AIR SACS WITHIN THE LUNGS

AORTA

THE LARGE ARTERY THAT CARRIES BLOOD AWAY FROM THE HEART TO THE REST OF THE BODY

ARTERY

A BLOOD VESSEL THAT CARRIES BLOOD AWAY FROM THE HEART

HEART

THE MUSCULAR ORGAN THAT PUMPS BLOOD THROUGHOUT THE BODY- IT HAS 4 CHAMBERS

VALVE

A FLAP THAT ALLOWS BLOOD TO PASS FROM THE ATRIUM INTO THE VENTRICLE IN THE HEART

VEIN

A BLOOD VESSEL THAT TRANSPORTS BLOOD BACK TO THE HEART

VENA CAVA

THE MAIN VEIN LEADING FROM THE BODY BACK TO THE HEART

ATRIUM

THE UPPER CHAMBER IN THE HUMAN HEART

blood vessels

hollow tubes that transport blood through the body

Capillaries

smallest blood vessels; materials are exchanged between the blood and the body's cells

ventricles

lower chambers of the heart that pump blood out of the heart

The job of the circulatory
system

to carry food and oxygen to each
cell and take away cells wastes.

Parts of the heart
atrium-

is up top

Parts of the heart
Ventricle-

on the bottom and pumps
blood into the lungs

Parts of the heart
Left side-

pumps blood through the
arteries to the rest of the body

Parts of the Heart -
Right Atrium

The chamber of the heart collects blood that carries waste
and carbon dioxide from the body's cells

Circulatory System

What is the transportation
system of the body?

What happens inside the capillaries in the lungs?

An oxygen and carbon dioxide exchange occurs.

What happens in the instestines?

A nutrient and waste exchange occurs.

How long does it take to pump blood into every cell?

Less than 60 seconds