LRA-220 Week 1 Extra

Question 1

how many phalanges are in the foot?

Answer 1

14 phalanges

Question 2

how many phalanx does the Hallux (Big Toe) have?

Answer 2

2 phalanges (Distal and Proximal)

Question 3

How many tarsals are in the foot?

Answer 3

7 tarsals

Question 4

Name all 7 tarsals in the foot-

Answer 4

• Talus
• Calcaneus
• Cuboid
• Medial / 1st cuneiform
• Intermediate / 2nd cuneiform
• Lateral / 3rd cuneiform
• Navicular

Question 5

How many sesamoid bones does the foot have?

Answer 5

2

Question 6

where are the 2 sesamoid bones located?

Answer 6

• both located below dthe hallux
• one is medial, the other is lateral to the Hallux

Question 7

Define Mortise

Answer 7

• a socket formed by the tibia and fibula
• the socket holds the talus bone, creating the ankle joint

Question 8

which part of the tarsal is common for injuries

Answer 8

• tuberosity of the calcaneus

Question 9

true or false: all articulating surfaces articulate with a tarsal bone

Answer 9

• true

Question 10

what does MTP stand for?

Answer 10

metatarsophalangeal

Question 11

what does TMT stand for?

Answer 11

tarsometatarsal

Question 12

how many metatarsals are in the foot?

Answer 12

5

Question 13

how many bones overall are in the foot?

Answer 13

26

Question 14

what are the three parts of a metatarsal bone?

Answer 14

distal - head
middle - body / shaft
proximal - base

Question 15

What does the 5th metatarsal have on its lateral side that creates that bump?

Answer 15

• tuberosity

Question 16

what part of the metatarsal is a common site for injuries?

Answer 16

• tuberosity of the 5th metatarsal

Question 17

how many phalanges does digits 2-5 have?

Answer 17

• 3 phalanges each
• distal, middle, proximal

Question 18

true or false: sesamoid bone fractures are common and can e very painful and cause discomfort

Answer 18

true

Question 19

define calcaneus

Answer 19

• heel bone
• largest tarsal bone
• lateral side
• contains process (medial and lateral process)

Question 20

what’s the purpose for the medial and lateral processes on the calcaneus?

Answer 20

• area where tendons attach to

Question 21

define Talus

Answer 21

• 2nd largest tarsal bone
• body weight is transmitted to this bone
• medial side

Question 22

define Navicular

Answer 22

• located between talus and the 3 cuneiforms

Question 23

define cuboid

Answer 23

• located on the lateral aspect of the foot
• “cubed” shaped

Question 24

define longitudinal arch

Answer 24

• the arch seen on the foot when we are erected
• arch going from front to back / vice versa

Question 25

define transverse arch

Answer 25

• the arch that goes across our foot from left to right / vice versa

Question 26

what’s the purpose of arches?

Answer 26

they provide strong / shock absorbing support for the weight of the body

Question 27

define tibial plafond (ceiling) / tibial epiphyseal plate

Answer 27

• distal tibial joint surface that forms the roof of the ankle
• common fractures in children and youth

Question 28

define the axial view of the Ankle joint

Answer 28

• view is seen from bottom to top
• demonstrates the concave inferior surface of the tibia (tibial plafond)
• lateral and medial malleoli are also shown

Question 29

What type of joint is the ankle?

Answer 29

• Synovial joint -> Sellar Type

Question 30

define sprained ankle

Answer 30

• lateral stress
• stretched / torn ligaments
• increases parts of the mortise joint space