The Muscular System
is concerned with the function of body parts, what they do and how they do it
What is Physiology?
fixed attachment
what is Orgin?
brain and spinal cord
What is central nervous system?
carry blood to the heart
what are veins?
opening for digestive and respiratory system
what is Pharynx (throat)
Association site of the nerve and muscle
What is Neuromuscular Junction?
fibers white in color; contract rapidly, greater in force and fatigue quicker
What are Fast twitch fibers?
detect both internal and external stimuli
what is sensory Functions?
starts signal: pace maker
what is SA node?
nose, pharynx larynx, trachea, bronchi, and lung
what are organs of the respiratory system
Bundles of myofilaments
what is Myofibril?
contraction that means no movement no length or stretching
What is Isometric Contraction?
Any nerve impulse towards cell body. receive stimuli (to cell body)
What is Dendrites
heart rate times the stroke rate
what is CO (cardiac output) ?
It is the process of air flowing into the lungs during inspiration (inhalation) and out of the lungs during expiration (exhalation)
what is Pulmonary ventilation?
Divides the body into right and left halves; does not run through the midline(runs vertically)
What is Sagittal Plane?
made up of a motor neuron and all of the skeletal muscle fibers
what is a motor unit?
Second largest part of the brain
What is the cerebellum
blood pressure level is less than 120/80 mmHg
What is normal blood pressure?
are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out
what is Alveoli plane?
when PI leave making it pull the actin together
What is power stroke movement?
Any movement you do period
what is isotonic contractions?
responsible for smell, sight, and taste; 12 pairs
what is cranial nerves?
the more that the cardiac muscle is stretched the stronger the contraction
What is Starlings Law of the Heart?
a thin skeletal muscle that sits at the base of the chest and separates the abdomen from the chest. It contracts and flattens when you inhale. most important muscle when breathing
what is diaphragm?