Slide 2:
There are over 600 muscles in the human body. There are muscles that you don’t even realize you have, and there are muscles that are necessary to normal modern life(and life in general). Some muscles are able to be flexed and used whenever you want, an example would be the calf muscle. Other muscles like the heart and lungs are constantly flexing and being used involuntarily. Muscles are what make moving forms of life actually move. They are arguable the MOST important part of your body.
Slide 3:
The Gastrocnemius is the calf muscle that is visible from the outside of the body. It runs from the back of your knee, all the way down through your Achilles T endon . The S oleus is not visible on the outside of your body. It is present under the Gastrocnemius , and ultimately has the same job. These muscles create most of the calf and help you elevate your heel. The Calf Muscle
The Achilles Tendon…:
The Achilles Tendon… I s the thickest and strongest tendon in the body. Is what your calf muscle relies on to do its job. It provides elastic like energy storage in hopping, walking, and running.
Proprioceptors “sense to self”:
Proprioceptors “sense to self” A muscle spindle is a sensory organ in the “belly” of a muscle. They convey length information to the central
nervous system through sensory neurons. This ultimately is how the brain determines muscle position. -The Golgi T endon Organ is similar to the muscle spindle. -The Golgi Tendon Organ determines muscle tension and force. -Through the Golgi Tendon Reflex it protects your muscle and bones from excessively heavy loads by signaling the muscle to relax and drop the load
Slide 6:
Golgi Tendon Organ
Muscle Spindle:
M uscle S pindle
Sources:
Sources http://education.yahoo.com/reference/gray/subjects/subject/129 http://courses.washington.edu/conj/bess/spindle/proprioceptors.html http://library.thinkquest.org/2935/Natures_Best/Nat_Best_High_Level/Title_Net_Page/Title_page_h.html