Chapter 1 (motion And Control) Flashcards
Three types of muscular tissue that can affect motion
Smooth (involuntary)
Cardiac (involuntary)
Striated (voluntary)
What are the involuntary muscles?
Smooth
Cardiac
What are the voluntary muscles?
Striated
What is composed of of smooth tissue?
Visceral (organ) muscles
What are smooth muscle tissues controlled by?
Automatic nervous system
What is the cause of internal organ movement?
Rhythmic contraction and relaxation
How do cardiac muscles function?
Contracting the heart to pump blood into the arteries and expanding
Involuntary motion is caused by?
Chill
Tremor
Spasm
Pain
Perstalsis
Heart pulsation
What is the primary method to reduce involuntary motion?
Less exposure time
What are the voluntary muscles controlled by
Central nervous system
How do voluntary muscles move?
Body movements initiated by the individual (patient)
What are striated muscles?
Skeleton, bones
What are striated muscles?
Skeleton, bones
Voluntary motions are caused by:
Nervousness
Discomfort
Age
Mental illness
Fear
Breathing
Excitability
How can a radiographer control voluntary motion?
Clear instructions
Provide comfort
Support devices
Applying immobilization