. Human physiology. Fig. 68.—The Motion of the Body onthe Hip. Fig. 69.—Lifting the Leg. the lifting power is produced by the contraction of a muscle whichextends from the hip-bone to the knee-cap. (Fig. 69).. Fig. 70.—Raising the Body on the Toe. (2) Raising the body on the toe.—The toe rests on the ground,thus forming the fulcrum. The weight is that of the body sup-ported at the ankle, and the power is supplied by the contractionof the muscles of the calf, which are connected with the heel. 58 ELEMENTARY PHYSIOLOGYLevers of the third order :- (i) Raising the forearm.—Here the elbow-joint for
. Human physiology. Fig. 68.—The Motion of the Body onthe Hip. Fig. 69.—Lifting the Leg. the lifting power is produced by the contraction of a muscle whichextends from the hip-bone to the knee-cap. (Fig. 69).. Fig. 70.—Raising the Body on the Toe. (2) Raising the body on the toe.—The toe rests on the ground,thus forming the fulcrum. The weight is that of the body sup-ported at the ankle, and the power is supplied by the contractionof the muscles of the calf, which are connected with the heel. 58 ELEMENTARY PHYSIOLOGYLevers of the third order :- (i) Raising the forearm.—Here the elbow-joint forms thefulcrum, the forearm and hand the weight to be raised, and thepower, which is supplied by the contraction of the biceps muscle,is applied at the radius.
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