Download Summary

THE BODY IN MOTION CHAPTER 1
Summary
How do the musculoskeletal
and cardiorespiratory systems
of the body influence and
respond to movement?
•
Human movement results from the complex
interaction of the skeletal, muscular, nervous
and cardiorespiratory systems.
•
The shape and length of bones and how they
join other bones influences the movements
those bones can make.
•
Bones can be classified as long, flat, short or
irregular bones.
•
The interface between bones (the joints) play
a significant role in human movement.
•
There are three categories of joints:
immoveable, cartilaginous and synovial joints.
•
Synovial joints have common features that
influence their efficiency of movement;
these include hyaline cartilage, synovial
membranes, joint capsules and synovial fluid.
•
There are six types of synovial joints in the
body: ball and socket, hinge, condyloid,
saddle, gliding and pivot.
•
There are three types of muscle in the human
body: concentric, eccentric and isometric
muscles.
•
Muscles usually work in pairs known as the
agonist and antagonist.
•
The respiratory system controls oxygen input
and carbon dioxide output from the human
body.
•
The key components of the respiratory
system are the nose, mouth, trachea,
bronchil tubes and alveoli.
•
Gas exchange through the walls of the alveoli
determines oxygen and carbon dioxide levels
in the blood.
•
The efficiency of the respiratory system can
be measured by simple field observations or
complex scientific analysis.
•
Total lung capacity (TLC), forced vital capacity
(FVC) and forced expiatory volume are
important measures of respiratory capacity.
•
The heart is a complex organ that regulates
blood flow around the body.
1
Copyright © 2010 McGraw-Hill Australia. Permission is granted to reproduce for classroom use.