Why is it important to have both flexors and extensors?

Why is it important to have both flexors and extensors?

Muscles can pull bones, but they can’t push them back to the original position. So they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint. Then, when the movement is completed, the flexor relaxes and the extensor contracts to extend or straighten the limb at the same joint.

Why antagonistic muscle arrangements are necessary? Explain why antagonistic muscle arrangements are necessary. This feature of antagonistic muscles is very important for the body as they increase the range of motion of the body part that the muscle is attached to and without antagonistic muscles the body parts will not exhibit the various movements.

How might injury to one of the muscles in the antagonistic muscle pair affect movement?

How might injury to one of the muscles in an antagonistic muscle pair affect movement? The injury would allow for the joint the muscles are attached to, to move in one direction… either only up becasue the lower muscle was damaged…or only down because the top muscle of the pair was damaged.

What part of the muscle moves the least during the contraction?

Ch. 7 Muscular System Vocabulary Terms (14-15)

origin attached to a fixed structure or bone; moves least during contraction
insertion attached to a movable part or bone and moves most during contraction
belly central body of the muscle
prime mover muscles that produce movement in a single direction

What type of fracture does the bone bend but not completely separate?

An incomplete, or greenstick, fracture occurs when the bone cracks and bends but does not completely break; when the bone does break into separate pieces, the condition is called a complete fracture. An impacted fracture occurs when the broken ends of the bone are jammed together by the force of the injury.

What supplements prevent lactic acid build up?

Get plenty of magnesium Increasing your magnesium intake may help to prevent and relieve muscle soreness and spasms that may accompany lactic buildup. It can also help optimize energy production so that your muscles get enough oxygen while you’re exercising.

How do you treat high lactic acid levels?

Increasing oxygen to the tissues and giving IV fluids are often used to reduce lactic acid levels. Lactic acidosis caused by exercising can be treated at home. Stopping what you’re doing to hydrate and rest, often helps.

How long should you drain your legs?

three to four minutes

How can I get better circulation in my legs?

Here are some guidelines:

  1. Stop smoking, if you smoke. Smoking has a negative effect on blood circulation.
  2. Stay hydrated. When you’re well-hydrated, your heart has an easier job pumping blood through your blood vessels to your muscles.
  3. Drink tea.
  4. Eat a balanced diet.
  5. Try massage.
  6. Take a warm bath.
  7. Try a sauna bath.