The optic nerve is the nerve that connects the eye to the brain and carries the impulses formed by the retina to the visual cortex of the brain. The choroid is a thin vascular layer between the sclera and the retina that supplies blood to the retina and conducts arteries and nerves to other structures in the eye.
A muscle pull (or strain) occurs when you twist, pull, or tear your muscle or tendon, the strong elastic cord that connects your muscle to the bone. As we age we are more susceptible to muscle pulls. However, you risk a pull if you donât warm up properly before you exercise and stretch a muscle past its limit, train longer than what your body can handle, or if you push a past muscle injury too far before the muscle has had adequate time to heal.
How to Recover from a Strained or Pulled Muscle. Two Parts: Recovering From a Muscle Strain at Home Seeking Help with Recovery. Muscle strains, also called pulls, occur when the small fibers within a muscle are stretched beyond their limits, which results in a partial or complete tear (rupture). All muscle pulls are categorized as either Grade I (tearing of a few fibers), Grade II (more extensive fiber damage) or Grade III (complete rupture).