Chapter 14 - Structure and Movement Terms Flashcards
Chapter 14 terms
What is a human body system?
a system is a collection of parts that interact with one another
What is input?
the matter, energy, or information that enters a system
What is an example of input
when you exercise, heat is detected by special cells and receptors
What is processing?
the changing of an input to achieve a goal
What is an example of processing
a part in the brain processes the input from the receptor cells and sends a message that the body is too warm
What is output?
the materiel, energy, or information that leaves the system
What is an example of output
you sweat to cool down
What is feedback in systems?
systems can use information to monitor and change the input, process, and output
What is an example of feedback in systems
you breathe faster when you exercise to bring in more oxygen
Body systems work together to maintain _______
homeostasis
What is thinking systems
if you think of the systems and how they work, you can make choices that are beneficial to your overall health
How many bones does a human adult have
206 different bones
How many bones does a newborn have
275-300 bones
What is the function of the skeleton
provides shape and support
What is the vertebrae
series of 26 small bones that make up your spinal column
What does the design of the vertebrae permit
flexibility and movement
What are muscles attached to
the skeleton
What works together to permit movement
bones and muscles
What are the 5 functions of the skeleton
Provides shape/support, enables movement, protection, produces blood cells, stores minerals.
Do bones serve as protection for major organs?
yes
Where are most blood cells produced
red blood cells are produced in the center of some bones
What type of minerals do bones store until the body needs to use them
calcium and phosphorus
what is the center of the bone called
bone marrow
what is a system
a system is a collection of parts that interact with one another
