Firecracker Anatomy!

Question 1

What structures attach to the tarsal sinus?

Answer 1

*ICE BILD*
inferior extensor retinaculum 
cervical ligament
EDB
bifurcate ligament
inferior peroneal retinaculum 
lateral calcaneocuboid lig
dorsal calcaneocuboid lig

Question 2

what makes up the bifurcate ligament?

Answer 2

calcaneonavicular lig

calcaneocuboid lig

Question 3

what structures are attached to the lateral process of the calcaneal tuberosity?

Answer 3

*LLAP*
lateral head of quadratus plantae
long plantar ligament
ABDM
plantar aponeurosis

Question 4

what structure attaches to the anterior tubercle of the calcaneus?

Answer 4

short plantar ligament (aka plantar calcaneocuboid lig)

Question 5

what structures are attached to the medial process of the calcaneal tuberosity?

Answer 5

MLAP +
ABH
FDB
flexor retinaculum

Question 6

which process (med/ lateral) of the calcaneal tuberosity is bigger?

Answer 6

medial process is bigger

*this is why it has more attachments!

Question 7

what is the relationship between the achilles tendon insertion and plantaris insertion on the posterior surface of the calcaneus?

Answer 7

plantaris attaches MEDIAL to the achilles tendon

Question 8

what is the relationship of the PL and PB on the side of the calcaneus (peroneal trochlea)?

Answer 8

PL lies inferior and posterior to the peroneal trochlea while PB lies above it

Question 9

what structures are attached to the sustentaculum tali?

Answer 9

MR. TP
medial talocalcaneal lig 
recurrent band of tibialis posterior 
tibiocalcaneal lig (part of deltoid) 
plantar calcaneonavicular lig (spring ligament)

Question 10

what structures attach to the medial tubercle of posterior process of the talus?

Answer 10

medial talocalcaneal lig

posterior tibiotalar lig

Question 11

what structures attach to the lateral tubercle of posterior process of the talus?

Answer 11

posterior talofibular lig (part of lateral collateral lig)
posterior talocalcaneal (part of STJ articular capsule)
fibulotalocalcaneal

Question 12

what structures attach to the base of the 1st metatarsal?

Answer 12

tibialis anterior- attaches to the medial surface

peroneus longus- attaches to the lateral surface

Question 13

what bone are the sesamoids attached to?

Answer 13

head of 1st metatarsal

Question 14

what structures attach to the proximal phalanx? separate by the medial and lateral plantar tubercle.

Answer 14

Medial plantar tubercle: medial head of FHB and ABH

lateral plantar tubercle: lateral head of FHB and ADH

Question 15

how many ossification centers does the calcaneus have?

Answer 15

2

Question 16

how many ossification centers do all other tarsal bones (except calcaneus) have?

Answer 16

1

Question 17

how many ossification centers do the metatarsals have?

Answer 17

2

Question 18

describe the location of the ossification center of the 1st met in relation to the lesser mets?

Answer 18

for the 1st met, the physis is at the base while for mets 2-5 the physis is at the head
*the second physis is in the shaft

Question 19

how many ossification centers are in the phalanges?

Answer 19

each bone has 2; one in the shaft the the other at the base of the phalanx

Question 20

what is the talocrural joint?

Answer 20

ankle joint

Question 21

what ligaments are associated with the ankle joint?

Answer 21

anterior inferior tib-fib lig

posterior inferieor tib-fib lig

Question 22

name the ligaments that make up the deltoid ligament.

Answer 22

tibionavicular
tibiocalcaneal
anterior tibiotalar
posterior tibiotalar

Question 23

which of the deltoid ligaments lies deep?

Answer 23

anterior tibiotalar

Question 24

the tendons of which two muscles lie superficial to the deltoid ligament?

Answer 24

tibialis posterior

FDL

Question 25

name the ligaments that make up the lateral collateral ligament of the ankle.

Answer 25

calcaneofibular
anterior talofibular
posterior talofibular

Question 26

what is the articular capsule of the STJ composed of?

Answer 26

medial talocalcaneal lig 
posterior talocalcaneal 
lateral talocalcaneal
interosseous talocalcaneal
anterior talocalcaneal (aka cervical lig)

Question 27

which ligament helps to check against over-inversion?

Answer 27

cervical ligament (anterior talocalcaneal)

Question 28

what is another name for the spring ligament?

Answer 28

plantar calcaneonavicular

Question 29

what is teh relationship of the interossei and lumbricals to the deep transverse intermetatarsal ligament?

Answer 29

interossei lie above the ligament

lumbricals lie below the ligament

Question 30

the nerves and arteries to the plantar foot are found in between which layers of musculature?

Answer 30

btwn the 1st and 2nd layers of plantar musculature

Question 31

Where does the first lumbrical insert?

Answer 31

the extensor expansion of the 2nd digit

Question 32

what is teh innervation to the 1st lumbrical?

Answer 32

branch of the 1st common plantar digital n.

all the other lumbricals are innervated by the deep branch of lateral platnar n.

Question 33

what is the action of the lumbricals?

Answer 33

flex teh MPJ and extend the IPJ

Question 34

what is the O/I of FDMB?

Answer 34

O: plantar surface of the base of the 5th met, tendon of PL, and plantar aponeurosis
I: plantar surface of the proximal phalanx of 5th digit inc common with ABDM

Question 35

what innervates FHB?

Answer 35

1st proper plantar digital n. (from medial plantar n.)

Question 36

what 4 things does the deep branch of the lateral plantar nerve innervate?

Answer 36

1. lumbricals 2-4
2. ADH
3. 1st and 2nd plantar interossei
4. 1st - 3rd dorsal interossei

Question 37

the 4th common plantar digital n. is a branch of what?

Answer 37

superficial branch of the lateral plantar n.

Question 38

what 3 things does the superficial branch of lateral plantar n. innervate?

Answer 38

FDMB
3rd plantar interossei
4th dorsal interossei

Question 39

Where does EHB insert?

Answer 39

EHB inserts on the dorsal surface of the base of the proximal phalanx of the 1st digit)