Circulatory & Respiratory

Which of the following best describes the main function of the circulatory system?

• to deliver nutrients and other essential materials to cells

• to break down nutrients found in food

• to produce the chemical signals

• to coordinate all other body systems

Which process best describes respiration?

• removing waste from the blood stream

• breaking down food into smaller nutrients

• obtaining oxygen and releasing carbon dioxide

• eliminating pathogens from the blood and lymph fluid

Which of the following best describes the alveoli?

• a single tube that connects the larynx to the lungs

• tiny sacs where oxygen and carbon dioxide are exchanged

• a passageway that leads from the mouth to the tops of the trachea

• two folds of tissue stretched over the airway that vibrate to produce sound

After a long run, Tim breathes heavily. Which statement describes the path that the oxygen take through his body?

• Oxygen first enters his systemic circulation, then his heart, then his pulmonary circulation

• Oxygen first enters his pulmonary circulation, then his heart, then his systemic circulation,

• Oxygen first enters his heart, then his systemic circulation, then his pulmonary circulation

• Oxygen first enters his hear, then his pulmonary circulation, then his systemic circulation

This type of vessel carries blood TO the heart:

• vein
• nerve
• muscle
• artery

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

• artery

• neuron

• vein

• straw

The smallest type of blood vessel is the:

• nerve
• vein
• capillary
• artery

The cells in the blood that help fight germs and illnesses are the...

• red blood cells
• platelets
• white blood cells
• axons

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

The circulatory system works with the ___________ system to provide our body with oxygen.

• respiratory
• digestive
• muscular
• skeletal

Tags

NGSS.MS-LS1-3

Muscle found in the heart that is resistant to fatigue.

• skeletal
• smooth
• cardiac
• rough