0
What acts as the antagonist when flexing the forearm at the elbow?
Wiki User
∙ 13y ago
triceps
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
When the forearm is extended at the elbow joint muscles acts as the prime mover?
biceps brachii
When you bend your elbow the fulcrum is at your?
When you bend your elbow, the fulcrum is at the joint where your upper arm (humerus) connects with your forearm (radius and ulna). This joint acts as the pivot point around which the bending motion occurs.
Where in your body can you find supinator and pronator muscles?
In your forearm. Your pronators are located on the anterior surface of your arm, while the supinator is located on the posterior surface. The brachioradialis is another pronator and supinator, which is also in your forearm, and is located on top of the radius. The bicep brachii is another supinator, on the upper half of your arm ( above the elbow)
How does the forearm work as a lever up and down?
The forearm acts as a lever to move the hand and wrist. When flexing the forearm, the biceps muscle applies force to pull the radius bone towards the humerus bone, resulting in upward movement of the hand. When extending the forearm, the triceps muscle applies force to push the radius bone away from the humerus bone, resulting in downward movement of the hand.
Which muscle acts as an antagonist to the geniohyoid during depression of mandible?
The masseter acts as the antagonist.
How did the hinge bone get its name?
It got its name because it acts as a hinge, only opening and closing a certain distance. Your elbow is a hinge joint. Think of your elbow as a hinge on a door in your house. The door is your forearm and the door frame is your upper arm/body.
What kind of simple machine is a forearm?
A forearm functions as a lever when muscles contract and apply force to move the hand or fingers. The elbow joint acts as the fulcrum, allowing for different levels of force and range of motion.
What is brachioradialis?
this muscle is one among the 7 superficial extensor muscles of the postertor compartment of the forearm. this is otherwise known as the supinator longus. functionally it is a flexor of the elbow but it is grouped under extensor muscles. this muscle forms a fleshy bulk along the lateral border of the forearm. it forms the latersl boundary of cubital fossa. supplied by radial nerve. it acts as the flexor of the elbow joint.
What acts as an antagonist to the rectus femoris?
The primary antagonist to the rectus femoris is the biceps femoris, a muscle of the hamstring group. When the rectus femoris contracts to flex the hip and extend the knee, the biceps femoris acts to flex the knee and extend the hip, helping to create balanced movement.
What is an action of an antagonist?
A bad guy if you are talking about human characters in a story. But if you are talking about muscles, it is the one that acts to oppose the action of the prime mover, or agonist. For example: The biceps and triceps have an agonsit/antagonist relationship. When you flex your elbow (pretend you are Arnold Schwarzenegger and you want to 'bulge you biceps'). When you do that your triceps relaxes to allow the biceps to contract. But, in actuality, both are contracting, only the biceps are getting shorter and the triceps are getting longer. In other words, if you did not have the triceps to control and mitigate the movement of the biceps, you'd end up punching yourself in the face because there was no way to control the biceps shortening and flexing the elbow until you KO'd yourself. In other words, the agonist, or prime mover is the gas pedal and the antagonist is like the brakes. You need them both to control movement in the body.
What is an antagonist in the autonomic nervous system?
An antagonist in the autonomic nervous system is a substance that blocks the action of neurotransmitters at specific receptors. This can result in the inhibition of certain physiological responses mediated by the autonomic nervous system, such as heart rate or smooth muscle contraction. Antagonists are often used in medicine to treat conditions where modulating autonomic functions is beneficial.
Who is anyone who opposes or acts against your interest?
An antagonist
