Show:
Circulatory System
Respiratory System
Muscular System
Skeletal System
100
The _____ is the main organ of the Circulatory System.
What is the Heart
100
The two main organs are the _____, _____.
What are the lungs and the trachea
100
Movement by muscles is either ________ or ________.
What is voluntary and involuntary
100
What is the largest bone?
What is the femur
200
What are the three blood vessels?
Arteries, veins, and capillaries
200
How many bronchi are in the respiratory system?
What is 2
200
True or False:Muscles make up almost half our body mass.
What is true
200
The smallest bone is located where?
What is the middle of the ear
300
Works closely with digestive, _________, respiratory systems
What is the excritory
300
What system does the respiratory system work closely with?
What is the circulatory system
300
Muscles connect to bones by ________ ________.
What is connective tissue
300
Bones attach at ______.
What are the joints
400
The heart is divided into how many chambers?
What is four
400
The respiratory system provides _____ for the cells.
What is oxygen
400
The muscles and bone of the arm work together as a ______, with the elbow acting as a fulcrum.
What is a lever
400
How many bones do humans have?
What is 206
500
The right side of the heart is 02 _____?
What is rich
500
The respiratory system returns _____ into the air.
What is C02
500
True or False:Involuntary muscles are the cardiac muscles, digestive organs, and skeletal muscles.
What is false
500
______ holds the bones together.
What is ligaments