The pectoralis major is a third class lever.
Yes, the pectoralis major is responsible for movements like arm flexion and horizontal adduction of the shoulder. In contrast, the pectoralis minor is involved in stabilizing the scapula by drawing it forward and downward.
A wheelbarrow is a second-class lever. In a second-class lever, the load is between the effort (force) and the fulcrum, which allows for a mechanical advantage in lifting and moving heavy loads with less effort.
First Class LeverIt is a First class lever.
Ice tongs are actually third class lever. In a third class lever, the effort is between the fulcrum and the load.
No, a nail cutter is not a first-class lever. It is a type of lever called a third-class lever because the effort force is between the fulcrum and the load.
pectoralis major and pectoralis minor
The heart is deep to the pectoralis major. The pectoralis major is superficial to the heart.
there are two muscles with pectoralis in their name, Pectoralis Major and Pectoralis Minor. Pectoralis Major is the main muscle of the chest and pectoralis minor is deep to it (so you can't feel it because pectoralis major completely covers it)
Pectoralis minor.
The heart is deep to the pectoralis major. That muscle is superficial to the heart.
Yes, the pectoralis major is anterior to the rhomboids. The pectoralis major is located on the front of the chest, while the rhomboids are situated in the upper back, between the shoulder blades. This positioning means that the pectoralis major lies in front of and above the rhomboids.
The Pectoralis Major (large superficial) and Pectoralis Minor
pectoralis minor and subclavius muscle.
No. They are synergists to each other.
The pectoralis major muscle forms the anterior border of the axilla.
3rd class lever
Class 1 lever