Skeletal Abnormalities

Question 1

Complete absence of one or more limbs

Answer 1

Amelia

Question 2

Small irregularly shaped bone

Answer 2

Phocomelia

Question 3

Consist of extra fingers or toes

Answer 3

Polydactyly

Question 4

Abnormal fusion is usually restricted to finger or toes

Answer 4

Syndactyly

Question 5

Consist of abnormal cleft between the second and fourth metacarpal bones and soft tissues

Answer 5

Cleft hand foot

Question 6

Other name for cleft hand and foot

Answer 6

Lobster claw deformity

Question 7

Absence of digit such as thumb

Answer 7

Ectrodactyly

Question 8

Characterized by fusions of the carpal bones and small short digits

Answer 8

Hand foot genital syndrome

Question 9

Synpolydactyly has mutations in what gene?

Answer 9

HOXD13

Question 10

Other name for hand-foot-genital syndrome

Answer 10

Synpolydactyly

Question 11

Clubfoot

Answer 11

Sole of the foot is turned inward;
Foot is adducted and plantar
(Usually acc. by synactyly)

Question 12

Consists of underdevelopment of the acetabulum and head of femur

Answer 12

Congenital hip dislocation

Question 13

Usually observed w/ malformations in other structures such as craniosynostosis and cranioschisis

Answer 13

Congenital absence/ Deficiency of the radius

Question 14

May cause ring constrictions and amputations of the limbs or digits

Answer 14

Amniotic bands

Question 15

Limbs vary greatly partially

Answer 15

Meromelia