This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How do muscle spindles protect muscles from injury during ... (Read 30 times)

Coya19@aol.com

  • Hero Member
  • *****
  • Posts: 601
on: Aug 5, 2018
How do muscle spindles protect muscles from injury during stretching?

Question 2

Compare and contrast the two types of elongation that assist with range of motion around the joints.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

CourtneyCNorton

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Aug 5, 2018
Answer to Question 1

If they are overstretched or stretched too fast, the spindles send messages to the central nervous system, and through a feedback loop, motor neurons are activated and cause muscle contraction to resist muscle stretch. This is called the stretch reflex.

Answer to Question 2

Greater range of motion around the joints is attained through plastic and elastic elongation.
Plastic elongation is the permanent lengthening of soft tissue. Even though joint capsules, ligaments, and tendons are basically nonelastic, they can undergo plastic elongation. This permanent lengthening, accompanied by increased range of motion, is best attained through proper stretching exercises.

Elastic elongation is the temporary lengthening of soft tissue. Muscle tissue has elastic properties and responds to stretching exercises by undergoing elastic or temporary lengthening. Elastic elongation increases extensibility-the ability to stretch the muscles.


Coya19@aol.com

  • Member
  • Posts: 601
Reply 2 on: Aug 5, 2018
YES! Correct, THANKS for helping me on my review

pratush dev

  • Member
  • Posts: 321
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Countercurrent heat exchange in the lateral muscles of bluefin tuna. Countercurrent heat exchange in the lateral muscles of bluefin tuna.
Muscle fibers consist of single, elongated, multinucleated cells that arise from the fusion Muscle fibers consist of single, elongated, multinucleated cells that arise from the fusion
Regulation of muscle contraction by tropomyosin and troponin Regulation of muscle contraction by tropomyosin and troponin
The major skeletal muscles—anterior superficial view. The major skeletal muscles—anterior superficial view.
The gluteal muscles are repositioned in the biped and aid in support. The gluteal muscles are repositioned in the biped and aid in support.
Dog Muscle Anatomy Dog Muscle Anatomy
Video: Neurosynapse Animation

For a complete list of videos, visit our video library