Muscular System 1
The largest percentage of muscles in the muscular system.
What is the skeletal muscle?
The ability of muscle to recoil to its original resting length after it has been stretched, is called ____.
What is Elasticity?
Is found only in the walls of the heart.
What is Cardiac muscle tissue?
Are attached to the bones of the skeleton.
What is skeletal muscle?
Is the muscle that performs the greatest amount of physical work in a lifetime.
What is the heart?
the muscular system includes (Clue: 3)
What are skeletal, cardiac, and smooth muscles?
Skeletal muscles are attached to the skeleton by tough connective tissues called __________.
What are tendons?
Muscles can also grow smaller, this is called _______.
What is atrophy?
When these muscles contract, they help the organs and vessels carry out their functions. These are ___ muscles.
What are smooth muscles?
What are muscle cells called?
Muscle fibers
Are responsible for virtually all the movements of the body, both inside and out.
What are Muscle contractions?
Painful, spastic contractions of a muscle; usually due to a buildup of lactic acid, this is called __________.
What is cramps?
Contractions of skeletal muscles are __________ or under the conscious control of the central nervous system via the somatic nervous system.
What is voluntary?
The cardiac muscle contains many ___________, which produce ATP for energy and help the heart resist fatigue.
What are mitochondria?
Contractions of smooth muscles are _________, so they are not under conscious control.
What is involuntary?
Muscles cannot move the body on their own. They need the skeletal system to act upon. The two systems together are often referred to as ____________
What is the musculoskeletal system?
A dome-shaped thoracic muscle.
What is diaphragm?
Is the most common type of muscle tissue in the human body.
What is Skeletal muscle tissue?
_____ is a single contraction of a muscle fiber in response to a stimulus.
What is Muscle Twitch?
Cardiac muscle is found only in the wall of the heart. It is also called ____________.
What is myocardium?
Relaxation of these muscles causes vasodilation, which may help the body lose heat.
What are Smooth muscles?
In the organs of the digestive system, smooth muscles squeeze food through the gastrointestinal tract by contracting in sequence to form a wave of muscle contractions called _______.
What is peristalsis?
A genetic disorder that causes muscles in the body to become weak and damaged over time caused by a problem in the gene that makes a protein called dystrophin. It is usually identified in children around 3 years of age when their parents notice slow motor development with progressive weakness.
What is Duchenne Muscular Dystrophy (DMD)?
Is intrinsically connected to the muscular system of the body. It is essential to the voluntary skeletal muscle.
What is the nervous system?
It is the constant tension produced by body muscles over long periods of time. It is responsible for keeping the back and legs straight, the head in an upright position, and the abdomen from bulging.
What is Muscle Tone?