Royal Army Medical Corps training pamphlet / War Office.

Date:
1944
Catalogue details

Licence: Public Domain Mark

Credit: Royal Army Medical Corps training pamphlet / War Office. Source: Wellcome Collection.

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    At its lower end it has a roller-shaped surface which, with the bones of the forearm, forms the elbow joint. The vadius and ulna are the bones of the forearm. The radius extends from the outer side of the elbow to the thumb - side of the wrist, and forms the main part of the wrist. The ulna extends from the inner side of the elbow to the little finger side of the wrist. At the upper end of the ulna is a projection called the olecranon process, which is the point of the elbow. There is a space between the radius and the ulna. By movements of the two bones on one another the hand can be turned palm forwards (supination) or palm backwards (pronation). 27. The hand.—The bones of the hand (Fig. 10) are arranged in three groups: firstly, in the wrist or carpus are eight small bones called the carpal bones: secondly, a row of five long bones forming the palm of the hand or metacarpus ; and lastly, small bones named the phalanges, three for each finger and two for the thumb. THE LoweErR LIMB 28. The lower limb is divided into the hip, the thigh, the leg and the foot ; it consists of the following bones :— The innominate or hip-bone. The femur or thigh-bone. The patella or knee-cap. The tibia or shin-bone. The fibula or small bone of the leg. The tarsal or ankle bones. The metatarsal or instep bones. The phalanges or toe bones. 29. The pelvis.—The innominate bone or hip bone is large and irregular. It is attached behind to the sacrum and in front to its fellow of the opposite side, the junction of the two bones being known as the symphysis pubis. The two inno- minate bones and the sacrum together make up the elvis (Fig. 11). . This is a strong ring, which transmits the weight of the body to the lower limbs and forms the walls of a cavity which contains important organs, including the rectum and bladder. On the outer side and about the middle of the in- nominate bone is a cup-shaped cavity known as the acetabulum, which receives the head of the femur and with it forms the hip joint. The lower end of each innominate is thickened into a bony process called the tuber ischit. These support the weight of the body when sitting and protect the soft tissues from pressure.