Contract and Relax
In shot put, major muscles involved are the deltoids, pectoralis major, triceps brachii, and core muscles. The actions of the joints include shoulder abduction and flexion, elbow extension, and trunk rotation. These muscles and joint actions are crucial for generating power and distance in shot put throwing.
The two major proteins that make muscles move are actin and myosin. These proteins slide past one another during muscle contractions, generating the force that allows muscles to shorten and generate movement.
Antagonists are muscles that resist the actions of agonist muscles and cause movement in the opposite direction. They help control the speed and range of motion of a joint during movement. Working together, agonist and antagonist muscles create balanced movement patterns in the body.
Muscles involved in pushing hard against a wall include the chest (pectoralis major), shoulders (deltoids), triceps, and core muscles for stabilization and power generation. This action primarily engages the upper body muscles.
Smooth muscles are controlled by the autonomic nervous system and are responsible for the involuntary actions of internal organs such as the stomach, intestines, blood vessels, and bladder. These muscles regulate functions like digestion, circulation, and urination without conscious effort.
There are twelve muscles in the face that make it possible for a person to smile. Other muscles can be used along with smiling that can make this number jump to as many as twenty-two.
smile
Reflex actions do not require thinking, nor do the actions of involuntary muscles.
One of the two muscles that make up the front part of the choroid is the ciliary muscles. Another one that makes up the choroid is the iris.
primary mover
Movement of the bones.
The actions skeletal muscles can perform are: flexion, extension, abduction, adduction, rotation, elevation, and depression.
Skeletal muscles do form the passageways in the body, but their actions are very rarely involuntary. More often than not, the actions of the skeletal system are performed because the brain sends a signal to those muscles and forces them to move.
In shot put, major muscles involved are the deltoids, pectoralis major, triceps brachii, and core muscles. The actions of the joints include shoulder abduction and flexion, elbow extension, and trunk rotation. These muscles and joint actions are crucial for generating power and distance in shot put throwing.
the two proteins that make up muscles fibers are acting and myosin
the brain.
internal intercostals and abdominal muscles