ANTH 336: Food Bones

Tarsal

ankle bones

Metatarsal

top of foot bones

How many tarsals are there?

7

How many metatarsals are there?

5

Calcaneus

heel bone

calcaneal tuber

sustentaculum tali

navicular

cuboid

medial cuneiform

intermediate cuneiform

lateral cuneiform

metatarsal 1

metatarsal 2

metatarsal 3

metatarsal 4

metatarsal 5

proximal phalanges (foot)

proximal phalange (foot) big toe

intermediate phalanges (foot)

distal phalanges (foot)

How to side the Calcaneus

Face the facet for the talus upward. The side that the flat side of the body is on, is the side of the body it is from

Right --> flat side faces to the right

Left --> flat side faces to the left

How to side the Talus

Face the articular surface for the tibia towards you. The head of the talus will point to the big toe from the side of the body it is from.

Right --> The head of points towards the left

Left --> The head points towards the right

How to side the Navicular

Hold the bone so that the notch is pointing upwards. Hold the notch in your hand so the large facet is facing medially. The hand of the body you are holding it with, is the side of the body it is from.

Right --> Holding the notch superiorly with the right hand

Left --> Holding the notch superiorly with the left hand

How to side the Cuboid

Hold the flattest side of the bone towards you. Make sure the pointy part of the bone is pointing down. The side of the bone that is noticeably smaller is the side of the body it is from.

Right --> The smaller side is on the right side

Left --> The smaller side is on the left side

How to side the medial cuneiform

Find the L shaped facet and face that towards you. The teardrop facet should be facing upwards. Look at the L shaped facet (the waterfall), and the side that the waterfall is flowing down towards, is the side of the body it is from.

Right --> The waterfall facet pointing down to the right

Left --> The waterfall facet pointing down to the left

How to side the intermediate cuneiform

Find the L-shaped facet and make the longer side of the L horizontally and inferiorly. The little part of the L shape should be facing up. The L has to be facing medially. When the L shape is facing medially, this is the side of the body it is from.

Right --> L shaped facet facing medially to the left

Left --> L shaped facet facing medially to the right

How to side the lateral cuneiform

Locate the butterfly facet and face that towards you with the dorsal (bigger side) facing up and the smaller side facing down. The side of the bone that has the butterfly facet is the side of the body it is from

Right --> Butterfly facet on the right side

Left --> Butterfly facet on the left side

How to side MT1

Locate the flat side of the bone, this is the anterior portion of the bone. The base of the bone has a facet on it which has a more curved side and a more flat side. The curved "C" shape of the base faces medially to the body and the straighter side of the base is lateral and points to where the other toes go. The medial side dictates the side of the body it is from.

Right --> C shape is medially to the left

Left --> C shape is medially to the right

How to side MT2

The side of that the double facet is on when facing MT3 is the side of the body it is from. Also, make sure the flat side of the bone is superior.

Right --> Double facet on the right

Left --> Double facet on the left

How to side MT3

How to side MT4

How to side MT5