0
The bicep
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is the type of joint found in the knee and elbow?
They are hinge joints. The elbow has only one plane of motion (flexion & extension); however, the knee is considered a "modified hinge" because it has the flexion & extension as well as a rotational (pivot) component as well.
Name the prime mover that flexes the forearm at the elbow?
It's bicep muscle.Actually its the Brachialis muscle that is the prime mover to flex the upper limb at the elbow. The biceps brachi (leymen: biceps) is only a helper and only when the arm is suppinated, suppination being the biceps primary function. Technically the arm is only the region of the upper limb between the shoulder and the elbo and thus flexion of the arm actually means lifting the humerus up and forwards. The muscles that contribute to this movement are the Clavicular part of the deltoid, clavicular head of pectoralis major, and there is a slight input from coracobrachialisNO the biceps muscle flexes the forearm (the elbow joint). The Pectoralis major is the prime mover of arm flexion. I am getting this right out of my lab book.
What is the type of joint at the knee and elbow?
The knee and elbow both are uniaxial joints. This type is a synovial joint that permits movement around only one axis and in only one plane. The articulating ends of the bones form a hinge-shaped unity that allows only flexion and extension.
What bone is found in your knees and elbows?
A previous wiki answer from Gerry Sutton.They are hinge joints. The elbow has only one plane of motion (flexion & extension); however, the knee is considered a "modified hinge" because it has the flexion & extension as well as a rotational (pivot) component as wellRead more: What_type_of_joint_is_found_in_the_knee_and_elbow
What is the role of antagonist synergistic stabilizer and neutralizer muscle in human body?
Stabilizer - the muscle may contract to hold a body part immobile while another body part is moving. The sustained stabilizing contraction is frequently isometric. In most normal activities, proximal joints are stabilized by muscle contractions during movement of more distal joints - proximal stabilization. For an isolated movement at one joint to occur, the muscles that control the joints proximal to that joint must stabilize the proximal joints so that no motion occurs there. The antagonists for each motion at the proximal joint co-contract or contract against each other to prevent motion. Example: the quadriceps may stabilize the knee in an extended position of permit plantar flexion of the ankle as when the individual rises to tip-toe in erect position To perform isolated elbow flexion the proximal shoulder joint must be stabilized by flexors/extensors, abductors/adductors and internal/external rotators. Neutralizer - prevents unwanted motions a muscle can perform so a specific motion can occur. Mostly dependant on the angle of pull. Examples: the biceps can flex the elbow and supinate the forearm. If only elbow flexion is wanted, the supination component must be ruled out. Therefore, the pronator teres, which pronates the forearm, would contract to counteract the supination component of the biceps, and only elbow flexion would occur. Neutralizers act to cancel out an unwanted movement With wrist ulnar deviation the flexor carpi ulnaris will cause lexion and lunar deviation of the wrist. The extensor carpi ulnaris will cause extension and ulnar deviation. If ulnar deviation is desired, these muscles would contract doing two things: they would neutralize each other's flexion/extension component, and they would act as agonists in wrist ulnar deviation Stabilizers and Neutralizers both use co-contraction to prevent motion and have an antagonistic relationship. Stabilizersare associated with joints; Neutralizers are associated with muscle.
What is the muscles that rotate the radius without producing either flexion or extension of the elbow?
The muscle has to have origin and insertion below the elbow. There is only one such muscle. It is called as pronator quadtatus.
What is the term for the muscle that bends and flexes the elbow joint?
Flexion (same as bending) at the elbow joint (between the humerus and the radius and ulna) is mainly achieved by the Brachialis Muscle. This is not the answer most would expect as everyone knows the Biceps Brachii (Biceps of the arm) are what flexes this joint. In fact the biceps does both supination and flexion of the elbow because its insertion is on the radius. Only when the forearm is supinated, the biceps is able to assist the deeper and more powerful brachialis muscle with the flexion of the elbow.
What function do th triceps serve?
The primary function ofthe biceps brachi is suppination of the forarm, only when the forearm is suppinated does the biceps brachi assist brachialis in flexion of the elbow. The Triceps brachi is the only significant extensor of the elbow joint.
What is the type of joint found in the knee and elbow?
They are hinge joints. The elbow has only one plane of motion (flexion & extension); however, the knee is considered a "modified hinge" because it has the flexion & extension as well as a rotational (pivot) component as well.
What joint does the elbow form?
The elbow is an uniaxial joint. This type is a synovial joint that permits movement around only one axis and in only one plane. The articulating ends of the bones form a hinge-shaped unity that allows only flexion and extension.
Name the prime mover that flexes the forearm at the elbow?
It's bicep muscle.Actually its the Brachialis muscle that is the prime mover to flex the upper limb at the elbow. The biceps brachi (leymen: biceps) is only a helper and only when the arm is suppinated, suppination being the biceps primary function. Technically the arm is only the region of the upper limb between the shoulder and the elbo and thus flexion of the arm actually means lifting the humerus up and forwards. The muscles that contribute to this movement are the Clavicular part of the deltoid, clavicular head of pectoralis major, and there is a slight input from coracobrachialisNO the biceps muscle flexes the forearm (the elbow joint). The Pectoralis major is the prime mover of arm flexion. I am getting this right out of my lab book.
What Muscle extends in any movement?
None. Muscles only contracts. In order to extend, the muscle on the opposite movement has to contract. For example, the biceps help flex the elbow, but it does not extend the elbow; the triceps does that.
What is the type of joint at the knee and elbow?
The knee and elbow both are uniaxial joints. This type is a synovial joint that permits movement around only one axis and in only one plane. The articulating ends of the bones form a hinge-shaped unity that allows only flexion and extension.
What is the purpose of your triceps?
The primary function of the biceps muscles is elbow flexion or mowing your arm towards the shoulder. It's secondary function is hand/arm supination, which is the movement of your hand from facing downward to facing upwards. On the other hand, the triceps' primary function is to straighten the arm or extending the elbow. The triceps' muscles also helps in the movement of the arm towards the body or moving your arm from out to inside or towards the mid line of your body which is called adduction. this secondary function is performed together with the muscle Latissimus Dorsi.
What is The joint that permits only flexion and extension?
Which type of diathrotic joint permits flexion and extension only?
What is Elbow flexed at 90 degrees rotating forearm so that palm is facing the floor?
If the elbow is flexed, the palm of the hand can not face the floor. If the elbow is at 90 degrees that is what flexion is. If you rotate the forearm, the palm will face anteriorly. If you don't, the palm will face posteriorly. The only way to have the palm face the floor is for the forearm to be extended and the forearm pronated.
What does a smooth muscle provide?
Smooth muscle is responsible for involuntary movement, just like skeletal muscle, only the movement is usually in the internal organs.
