Muscular System Flashcards
What are the functions of the muscular system?
Body movement
Maintenance of posture
Respiration
Production of body heat
Communication
Constriction of organs and vessels
Heart beat
What muscles produce body movement?
Skeletal muscles attached to bone
Which muscles are responsible for the movement necessary for respiration?
Skeletal muscles of thorax
What are the general functions of muscles?
Contractility
Excitability
Extensibility
Elasticity
It is the ability of the muscle to shorten with force.
Contractility
It is the capacity of the muscle to respond to a stimulus.
Excitability
How does a muscle receive a stimulus?
By nerve or hormone
It is the ability of the muscle to be stretched to its normal resting length and beyond to a limited degree.
Extensibility
It is the ability of the muscle to recoil to original resting length after being stretched.
Elasticity
True or False: Muscle tissue shortens passively but lengthens forcefully.
FALSE. Muscle tissue shortens forcefully but lengthen passively.
What are the three types of muscle tissue?
Skeletal
Smooth
Cardiac
Which muscle tissues are involuntary?
Smooth & cardiac
Which muscle tissue is responsible for locomotion, facial expressions, posture, respiratory movements, and other body movements?
Skeletal muscle
This muscle tissue lines the walls of hollow organs, blood vessels, eyes, glands, and skin.
Smooth muscle
This muscle tissue is found in the heart and is a major source of movement of blood.
Cardiac muscle
