The musculoskeletal system (see Introduction to the Biology of the Musculoskeletal System) includes the bones, muscles, ligaments, tendons, and joints, which support and move the body.
Lambing. Ewes generally lamb around 145 days after mating. Some of course will be earlier & some later, but 145 days is the norm. For a successful lambing, ewes need to receive good nutrition, particularly in the last month of pregnancy when the lamb will approximately double in size.
Cooking your leg of lamb to a medium-rare finish, with a pronounced pink hue to the meat, means the internal temperature should reach 145 degrees F. With your oven preheated at 325 degrees F, you will cook the lower leg half (called the shank) for 25 to 30 minutes per pound.