Synovial joints, such as the shoulder and knee, are freely movable and allow various ranges of motion.
The rotator cuff muscles stabilize the glenohumeral joint and assist in movements such as abduction, rotation, and elevation of the arm.
Type I muscle fibers, also known as slow-twitch fibers, are highly resistant to fatigue and are ideal for endurance activities.
Proprioceptors provide the brain with information about body position and movement, which is essential for coordination and balance.
The patella, or kneecap, increases the leverage of the quadriceps muscle during knee extension and protects the knee joint.
The phrenic nerve, originating from C3-C5, controls the diaphragm, which is essential for breathing.
