0
The principal muscles are the Thoracic_diaphragm, the External_intercostal_musclesand the intercondral part of the Internal_intercostal_muscles. Both the external intercostal muscles and the intercondral elevate the ribs, thus increasing the width of the thoracic cavity, while the diaphragm contracts to increase the vertical dimensions of the thoracic cavity, and also aids in the elevation of the lower ribs.
What else can I help you with?
What is the primary respiratory organ for cockroach?
the primary respiratory organ for cockroach is trachea
What is the only unpaired respiratory muscle?
the diaphragm.
What muscle is the primary muscle used in smiling?
The Zygomaticus is the primary muscle used in smiling.
Where would you NOT find smooth muscle?
Respiratory airways
What large muscle is important to the respiratory system?
lungs
Which part of the respiratory system is a skeletal muscle?
Tracgea
Insertion of primary muscle used in a triceps cable extenson?
The triceps muscle is the primary muscle used in a cable extension.
What is the definition of Target muscle?
The primary muscle intended for exercise.
What function does your diaphragm do in your respiratory?
The diaphragm is the primary muscle responsible for breathing. When it contracts, it moves downward, creating a vacuum in the chest cavity which draws air into the lungs. When it relaxes, the diaphragm moves back up, pushing air out of the lungs.
What is the first event in expiration?
The first event in expiration is the relaxation of the diaphragm muscle, which is the primary muscle responsible for breathing. As the diaphragm relaxes, it moves upward, decreasing the volume in the chest cavity and causing air to be expelled from the lungs.
Is the cardiac muscle in the muscular or respiratory system?
The cardiac muscle is the heart. The heart is in the cardiovascular system, despite that the tissue makes a muscle.
What are each organ in the respiratory system?
The anatomical features of the respiratory system include airways (nose,pharynx,larynx, trachea, bronchus), lungs, and the respiratory muscles (sternocleidomastoid, platysma, scalene muscle of the neck, external intercostal muscle and diaphragm)
