Last 9wks Test Flashcards
(47 cards)
What structure directs the activities of a cell?
Nucleus
Messages are carried back and forth between the brain and other parts of the body by…
Nervous tissue
Which organ system makes blood cells?
Skeletal system
Of the following is not a function of the skeleton?
Obtaining oxygen
Much of a newborn baby skeleton is made of…
Cartilage
What kind of motion is possible with the hinge joint?
Backward or forward
Which type of muscle is only found in the heart?
Cardiac muscle
Which of the following is in correct order from smallest to largest?
Cells, tissues, organs, organ systems
Skeletal muscles must work in pairs because…
Muscle cells can only contract
How does the skin protect the body from disease?
By keeping disease-causing microorganisms from entering the body
Which of the following is the smallest level of organization in the body?
Cells
The bones that form the backbone are called…
Vertebrae
Which of the following is not a function of the cardiovascular system?
Controlling many body processes by means of chemicals
Blood vessels that carry blood away from the heart are called…
Arteries
Which component of blood carries oxygen to the body cells?
Red blood cells
Which of these heart structures prevents blood from flowing backward?
Valve
When the ventricles contract, blood is pumped…
Out of the heart
What structure enables the small intestine to absorb large amounts of nutrients?
Villi
What substance in the mouth contains an enzyme that begins chemical digestion?
Salvia
What process involves muscle contractions that move food through the esophagus?
Peristalsis
In what part of the body does most chemical digestion take place?
Small intestine
What organ produces bile?
Liver
The role of the respiratory system is to bring what substance into the body?
Oxygen
What is the main organ in the respiratory system? The
Lungs
