Circulatory System

The aorta is 

• a vein
• an artery
• a valve
• a capillary

This type of vessel carries blood TO the heart:

• vein
• nerve
• muscle
• artery

When oxygen-rich blood is carried AWAY from the heart, it travels through an...

• artery
• neuron
• vein
• straw

What is pulmonary circulation?

• Blood travelling to and from the lungs
• Blood travelling to and from the body
• A blood clot in the lungs
• The vessel that brings blood to the lungs

A wall of tissue that separates the 4 chambers of the heart

• Pulmonary Circulation

• Valves

• Atria

• Ventricles

• Septum

The rate at which blood flows through the human body changes in response to many factors. Which statement describes one of these factors and its effect on blood flow? 

•  A high viscosity of blood causes an increased resistance in the blood vessels and leads to slow blood flow. 
• A low blood pH decreases the rate of diffusion through the blood vessels and leads to slow blood flow.
• The changing of the shape of red blood cells to a crescent shape decreases resistance and lead to a faster blood flow.
• The narrowing of blood vessels increases pressure and leads to a faster blood flow. 

Which of the following factors would most directly affect blood flow through the circulatory system?

•  blood pressure
• blood sugar
• respiratory rate
• outside temperature

Tags

NGSS.HS-LS1-3

Atherosclerosis is a disease involving clogging of the arteries.

• True

• False

• Sometimes

How is cholesterol important to the cell membrane?

• Allows for flexibility in the membrane to expand and contract

• Cholesterol is a channel protein that allows substances through

• Cholesterol clogs the arteries of the cell

• Cholesterol is not a critical component of cell membranes because all cholesterol is bad

What is the function of the heart?

• To pump blood around the body
• To remove oxygen from the blood
• To allow blood to flow through it 
• To breath