Ant: Finger-Elbow

Question 1

Name the 3 parts of the metacarpals

Answer 1

Head, body (shaft), base

Question 2

The anterior part of the metacarpals are what shape?

Answer 2

Concave

Question 3

The dorsal portion of the metacarpals are what shape?

Answer 3

Convex

Question 4

What are the carpometacarpal joints?

Answer 4

Articulation between respective carpals and base of metacarpals

Question 5

Sesamoid bones

Answer 5

Small and oval, develop inside and beside tendons, protect tendon from excessive wear

Question 6

Scaphoid

Answer 6

“Navicular” articulates with radius proximally, most frequently fractured carpal

Question 7

Lunate

Answer 7

“cresent-shaped” articulates with radius

Question 8

Triquetrum

Answer 8

Three articular surfaces

Question 9

Pisiform

Answer 9

pea shaped, anterior to triquetrum

Question 10

What is the proximal row of carpals?

Answer 10

Scaphoid, lunate, triquetrum, pisiform

Question 11

What is the distal row of carpals?

Answer 11

Trapezium, trapezoid, capitate, hamate

Question 12

Trapezium

Answer 12

“4 sided” distal to scaphoid, proximal to 1st metacarpal

Question 13

Trapezoid

Answer 13

“4 sided” smallest bone in distal row

Question 14

Capitate

Answer 14

“large bone” largest and most centrally located

Question 15

Hamate

Answer 15

Exhibits “hook” on anterior surface called “hamulus”

Question 16

What is the anatomic snuffbox

Answer 16

Triangular depression on posterior wrist when thumb is abducted and extended. Overlies scaphoid and radial artery

Question 17

What is the carpal sulcus?

Answer 17

Formed by concave anterior surface of the wrist

Question 18

What is the flexor retinaculum?

Answer 18

Fibrous band that attaches medially to hook of hamate and laterally to trapezium and scaphoid

Question 19

What is carpal tunnel?

Answer 19

Passageway created between the carpal sulcus and flexor retinaculum

Question 20

What is carpal tunnel syndrome?

Answer 20

Compression of the median nerve inside carpal tunnel