diaphragm
it's called the diaphragm! but technically it expands your muscles so your lungs can expand, it doesn't expand the ribcage.
The muscle that connects the sternum to the zygomatic arch is the sternocleidomastoid muscle. This muscle originates from the sternum and clavicle and attaches to the mastoid process of the temporal bone, which is part of the zygomatic arch. It helps with various movements of the head and neck.
Intercoastals
The diaphragm muscle.
intercoastals (body of sternum), Sternalis (manubrium of sternum), Sternocleidomastoid (manubrium of sternum), Pectoralis Major (body of sternum)
The sternocleidomastoid muscle is responsible for rotating and flexing the head. It also helps in tilting the head to either side. Additionally, it plays a role in assisting with breathing by raising the sternum during deep inhalation.
Diaphragm
the diaphragm is the muscle(s) that are most important muscle used in inspiration (inhalation)?
Diaphragm
Ribs are bones, but lungs contribute to breathing and they are a muscle organNo, your Lungs ARE NOT A MUSCLE. Your diaphragm is the main muscle in inhalation, which opens your lungs (works by creating a negative pressure in your lungs i.e. the pressure outside your chest cavity is more than the pressure in your lungs, causing air to enter your lungs).However, during forced inhalation and exhalation your intercostal muscles and rectus abdominus muslces play a part in exhalation (forcing air out). scalenes lift up your rib cage to allow maximum inhalation.
Yes, a pulled chest muscle can cause pain when breathing due to the movement of the ribcage and the strain on the muscle during inhalation and exhalation.
muscle from the sternum to the mastoid process, throught the clavicle