Question

Why might females be more likely to tear their ACL than males? How would you prevent this injury?

Answer 1

Satellite cells are the glial cells that support neurons in the Peripheral Nervous System by providing nutrients and structural support, similar to the role of astrocytes in the CNS. option a.

Step-by-step explanation:

Among the choices provided to support neurons in the Peripheral Nervous System (PNS), the correct answer is a. Satellite cells. Satellite cells are glial cells that surround the cell bodies of neurons within the PNS, serving a support role similar to astrocytes in the Central Nervous System (CNS). However, unlike astrocytes, they do not contribute to establishing the Blood-Brain Barrier (BBB). Astrocytes are star-shaped glial cells that maintain the extracellular environment and provide structural support in the CNS, whereas oligodendrocytes form the myelin sheath around axons also within the CNS. Thus, for the question regarding PNS support neurons, only satellite cells are relevant.

Answer 2

Anatomical differences between men contribute to an increased risk of ACL injury.

The width of the intercondylar notch in women is smaller than in men.

The transverse area of ​​the ACL is more difficult in men, which may be a smaller diameter of the ACL in women may be a risk factor for rupture.

Additionally the Angle Q (angle between femur and pelvis), whose normal value is 8 to 17 °, is consistently higher in women because on average, the woman's pelvis is wider and the femur shorter than in men. The existence of an increased Q angle increases the medial stress on the knee ligaments.

Finally, in female athletes, the menstrual cycle produces early changes in the synthesis of fibroblasts and procollagen type I in the ACL.

To prevent, the thigh muscles (quadriceps and ischia) and the twins must be specifically worked on. It is also necessary to train the proprioceptive mechanisms of reflex response.