Which of the following is an example of atavistic epiphysis?
Greater trochanter
Head of femur
Upper end of radius
Coracoid process of scapula
Ans. is 'd' i.e., Coracoid process of scapula YPES OF EPIPHYSES: Pressure epiphysis o Articular and takes part in weight transmission o Examples: Head of femur Condyles of tibia Lower end of radius Traction epiphysis o Non articular and does not take part in weight transmission o Provide attachment to a tendon which exerts traction o Examples: Trochanter of femur Tubercles of humerus Mastoid process Atavistic epiphysis o Phylogeneticallv an independent bone, which in man becomes fused to another bone o Examples:Coracoid process of the scapula Posterior tubercle of talus Os trigonum Aberrant epiphysis Not always present Examples: Head of 1 st metacarpal Base of other metacarpals
Joints