File:Anatomy, physiology and hygiene (1890) (14784280553).jpg

Identifier: anatomyphysiolog00mayc (find matches)
Title: Anatomy, physiology and hygiene
Year: 1890 (1890s)
Authors: May, Charles Henry, 1861-1943
Subjects: Human anatomy Physiology Hygiene, Popular. (from old catalog)
Publisher: New York, W. Wood and company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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thechest below and separates itfrom another cavity situatedjust below it, the abdomen; thismuscular partition is called the diaphragm. 46. Bones of the UpperLimb.—These are: the boneof the arm (humerus); the twobones of the forearm (radiusand ulna); and the small bonesforming the hand. 47. The Bone of the Armis a single bone, known as thehumerus; it is a strong-bone and extends from theshoulder to the elbow. Its up-per end has an enlargement,shaped like a ball, which fitsinto the cup-shaped depression,seen at the outer angle of theshoulder-blade. 48. The Bones of theForearm. — There are twobones in the forearm, an outer,the radius, and an inner, the Fig. 19.—The Bones cf the Upper Limb. , mi v Wlipprl sidp bv S, Breast-bone (Sternum); C, Collar-bone Ulna. Hiey aie piaceQ Side Dy(Clavicle); B, Shoulder-blade (Scapula); A, .-, ,, p hpf.WPen them Bone of Arm (Humerus); F. Bones of Fore- Side, Uie Space DCIWCeu LLLtJlll Bonei^Hand71^ W BoneS °f Writ; ^ being filled up by a membrane
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THE FRAMEWOEK OR SKELETON. 35 and by muscles. ■ They extend from the elbow to the wrist.In twisting the forearm the radius revolves around the ulna,which is the more stationary of the two. 49. The Bones of the Wrist and Hand.—There aretwenty-seven bones in each hand. The hand may be dividedinto three parts : The wrist or car-pus, the palm or metacarpus, andthe fingers or phalanges. The wristis the most solid part and is madeup of eight small bones, more orless rounded or cubical in shape,closely held together by toughbands ; this arrangement serves tomake the wrist very strong andstill very light. The bones form-ing the palm of the hand are fivein number. Each finger has threebones, the end of one being joinedto that of the other, except thethumb, which is shorter and hasbut two such phalanges; this ar-rangement of the bones of the fin-gers allows them to move verydexterously. 50. Bones of the LowerLimb.—These comprise the thigh-bone (femur), the bones Of the leg Fio 20,-The Bon

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