Heart

Is a muscular organ that pumps blood throughout the body.

• brain

• heart

• lungs

• stomach

Pumps blood out of the heart and into the different parts of the body.

• ventricle

• heartbeat

• atrium

• aorta

Blood enters the _____ first.

• left atrium

• left ventricle

• aorta

• right ventricle

Blood flows into both the atria and ventricles, causing the heart to contract and relax, producing a _____

• hypertension

• heartbeat

• atherosclerosis

Received oxygen-poor blood from the body.

• left atrium

• left ventricle

• right atrium

• aorta

The upper chamber of the heart.

• atrium

• ventricle

• heartbeat

Leading cause of death involving the heart.

• hypertension

• atherosclerosis

• hypotension

When the atria _________, blood is squeezed into the ventricle.

• relax

• contract

Tags

NGSS.MS-LS1-3

A heartbeat is a sound that is usually described as _____

• "lub-lub"

• "lub-bud"

• "lub-dub"

Heart is about the size of your ______