Circulatory System

The heart has ___ chambers.

• 1
• 2
• 3
• 4

This chamber of the heart RECEIVES blood returning from the body

• Right Atrium
• Right Ventricle
• Left Atrium
• Left Ventricle

Thin-walled vessels that allow for the exchange of O_{2 ,} CO₂, nutrients and wastes between blood cells or air sacs in the lungs

• Arteries
• Veins
• Capillaries

What does Deoxygenated mean?

• Oxygen-rich
• Blood flow
• Oxygen-poor
• Water Flow

Tags

NGSS.HS-LS1-7

A flap of tissue that prevents blood from flowing backward

• Aorta
• Atrium
• Septum
• Valve

  Compared to arteries, veins 

• have a pleated endothelium.
  
• have thinner walls.
  
• have more smooth muscle in their tunica media. 
• hold their shape better when cut. 

Tags

NGSS.MS-LS4-2

Carry blood away from heart; mostly oxygen-rich

• Arteries
• Veins
• Capillaries

Which type of blood vessel has the thickest layer of smooth muscle in its walls?

• Arteries
• Veins
• Capillaries
• Ventricles

What function does the heart do?

• Protects organs and produces red blood cells.
• Generates heat.
• Breaks down food into nutrients.
• The heart is a pump, which moves the blood. The arteries and veins are the pipes where the blood flows.

Tags

NGSS.MS-LS1-3

What is the main function of the artery?

• It controls your brain and your thought process.
• They carry oxygen- poor blood BACK to the heart.
• Arteries carry oxygen- rich blood AWAY from the heart.
• It receives information (senses) and sends messages to the body about how to react to things.