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What is pectoralis epicoracoidea?
Muscles in the pectoral region of a frog. It opposite of dorsalis scapula by: Adrenocorticotropic hormone and Adenosine Tri Phospate with anti deuretic hormone and nicotinamide adenine dinucleotide phospate hydrogen and also rectus femoris anticus and horizontal skeletogenious septum
The supraspinatus is named for its location on the posterior aspect of the scapula above the spine What is its action?
The action of the supraspinatus is to stabilize the shoulder joint and help prevent downward location of the humerus and to assist in abduction.
What three muscles insert onto the medial border of the scapula?
The three muscles that insert onto the medial border of the scapula are the rhomboid major, rhomboid minor, and levator scapulae. They help stabilize and move the scapula during various shoulder movements.
Stabilizes a joint so that the prime mover can act at more distal joints?
Muscles act as stabilizers by holding joints in place, allowing the prime mover to generate force and movement at more distal joints. This enables efficient and effective movement coordination during various activities.
What is the function of the pectoralis major muscle in the human body?
The pectoralis major muscle is responsible for movements of the shoulder joint, such as flexion, adduction, and medial rotation of the arm. It also helps in stabilizing the shoulder joint during various activities like pushing, pulling, and lifting objects.
What is the synergist of latissimus dorsi?
The muscle of the pectoralis is antagonist to the latissimus dorsi during the shoulder adduction. The anterior fibers are involved in shoulder abduction when the shoulder is externally rotated.
Which muscle acts as a synergist to the flexor carpi radialis during abduction of the wrist?
The muscle that acts as a synergist to the flexor carpi radialis during wrist abduction is the extensor carpi radialis longus. Both muscles work together to assist in the movement, with the flexor carpi radialis contributing to wrist flexion and abduction, while the extensor carpi radialis longus helps stabilize and support the wrist during this motion.
Which muscle protracts and depresses the scapula?
The serratus anterior muscle protracts and depresses the scapula. It originates on the upper ribs and inserts along the medial border of the scapula. This muscle is important for stabilizing the scapula during movements like pushing and reaching overhead.
What does the pectoralis do?
The pectoralis major is a large chest muscle that is responsible for flexing, adducting, and internally rotating the arm at the shoulder joint. It also helps to stabilize the shoulder joint during movement.
What is Codmans Paradox?
Codman's paradox refers to the observation that during shoulder abduction, the scapula (shoulder blade) initially rotates in the opposite direction to that of the humerus (upper arm bone), before eventually synchronizing their movements. This phenomenon challenges traditional biomechanical theories that suggest the scapula and humerus move together in a fixed ratio during shoulder abduction.
What is the Antagonist for a pull up?
The antagonist muscle group for a pull up is the pectoralis major, which is primarily responsible for shoulder adduction and internal rotation. In addition, the biceps brachii serves as a synergist muscle during the movement.
What are the characteristics of the three clusters of pecs?
The three clusters of pectoral muscles, or pecs, consist of the pectoralis major, pectoralis minor, and the serratus anterior. The pectoralis major is the larger, superficial muscle responsible for arm movement and chest appearance. The pectoralis minor, located beneath the major, assists in stabilizing the scapula and elevating the ribs during breathing. The serratus anterior, while not part of the pecs per se, plays a supportive role in shoulder movement and stability, often engaged during pushing movements.
What does the pectoralis minor do during the bench press exercise?
During the bench press, pectoralis minor will attempt to isometrically stabalise the scapulae by preventing a posterior tilt (backwards tilt), it does this pull pulling on the corocoid process insertion on the scapula. It will concentrically help to draw the shoulder forward (protraction) on the press phase of the movement by bringing the scapulae around the back of the rib cage.
What is pectoralis epicoracoidea?
Muscles in the pectoral region of a frog. It opposite of dorsalis scapula by: Adrenocorticotropic hormone and Adenosine Tri Phospate with anti deuretic hormone and nicotinamide adenine dinucleotide phospate hydrogen and also rectus femoris anticus and horizontal skeletogenious septum
What are the scapular protractors?
The scapular protractors are muscles that move the shoulder blades outward and forward. The main scapular protractors include the serratus anterior and the pectoralis minor. These muscles play an important role in stabilizing the scapula during arm movements.
What are the synergists to the serratus anterior?
The synergists to the serratus anterior include the pectoralis major, pectoralis minor, and the trapezius. These muscles assist in protracting and stabilizing the scapula during movements such as pushing and reaching. Additionally, the rhomboids and the levator scapulae can support the serratus anterior by helping with scapular elevation and downward rotation. Together, these muscles enhance shoulder mechanics and upper limb mobility.
Is the trapezius a fixator or synergists?
The trapezius muscle can function as both a fixator and a synergist, depending on the movement being performed. As a fixator, it stabilizes the scapula during arm movements, allowing other muscles to work efficiently. As a synergist, it assists in shoulder elevation and retraction, working alongside other muscles like the deltoids and rhomboids. Its versatile role makes it essential for various upper body movements.
