Humerus

Looks like

The long bone of the upper arm, with a round head at the shoulder and a broad, flattened end at the elbow.

What it does

The lever of the upper arm; the radial nerve spirals around its shaft.

Keeping it well

Its neck breaks in falls in older people with thin bones — treat osteoporosis. A wrist that drops after a shaft fracture means the radial nerve is hurt.

Its parts

• Medial epicondyle
• Lateral epicondyle
• Right humerus
• Left humerus

Related conditions

• Achondroplasia
• Acromegaly
• Fractures
• Fragility fracture
• Frailty & falls in older age
• Hyperparathyroidism
• Osteogenesis imperfecta (brittle bone disease)
• Osteomalacia & rickets
• Osteomyelitis (bone infection)
• Osteoporosis
• Paget's disease of bone
• Sarcoma
• Shoulder dislocation
• Vitamin B1, C and other deficiencies
• Vitamin D deficiency