JOINTS - B Wright

Question 1

2 types of synovial fibers

Answer 1

postganglionic sympathetic adrenergic fibers (blood vessels control)
unmyelinated C fibers (pain transmission)

Question 2

prevents ant. displacement of tibia

and pos. displacement of femur

Answer 2

PCL

Question 3

menisci are joined together by

Answer 3

transverse ligament of knee

Question 4

lateral meniscus joined to PCL by

Answer 4

posterior meniscofemoral ligament

Question 5

passive fallen arch primarily due to laxit yin

Answer 5

spring ligament (plantar calcaneonavicular)

Question 6

dynamic suppor tin foot includes

Answer 6

tibialis anterior and posterior
flexor hallucis longus
intrinsic plantar muscles

Question 7

passive support in foot includes

Answer 7

plantar aponeurosis
short and long plantar ligaments
plantar calcaneonavicular ligamnets (spring ligaments)

Question 8

loss of which arch causes pes planus

Answer 8

longitudinal

Question 9

ankle is this type of joint

Answer 9

hinge synovial

Question 10

medial/ligament ligament of ankle

Answer 10

anterior tibiotalar part
tibionavicular part
tibiocalcaneal part
posterior tibiotalar part

Question 11

lateral ligament form of

Answer 11

posteriro tibiofibular lig.
anterior tibiofibular lig. (these 2 have high chances of ankle sprain
anteriortalofibular ligament

Question 12

two important intertarsal joints

Answer 12

transverse tarsal joint (calcaneocuboid joint, talonavicular joint)
subtalar joint (talocalcanean joint)

Question 13

importance of transverse tarsal joints (talonavicular, calcaneocuboid)

Answer 13

permit slight rotation and add inversion and and eversion at talocalcaneal joint

Question 14

the fibrous capsule of talocalcanean joint is supported by

Answer 14

interosseous talocalconeal lig.

Question 15

hip joint is what type of joint

Answer 15

diarthrotic ball and socket type of synovial joint

Question 16

rim of acetabulum is bridged by

Answer 16

transverse acetabular ligament

Question 17

thickened parts of fibrous/ articular capsule are called

Answer 17

intrinsic ligaments

Question 18

3 hip join tintrinsic ligaments

Answer 18

iliofemoral
pubofemoral
ischiofemoral

Question 19

iliofemoral ligament function

Answer 19

prevents overextension of hip joint

Question 20

pubofemoral ligament function

Answer 20

prevents overabduction and overextension

Question 21

isciofemoral ligament function

Answer 21

prevents overextension

Question 22

when can anterior hip dislocation occur

Answer 22

knee strikes dashboard w/ thigh abducted
falls from height
from blow to back in squatted position

Question 23

function of articularis genu

Answer 23

pulls suprapatellar bursa superiorly during knee extension

Question 24

arteries involved in genicular anastamosis

Answer 24

superior medial/ lateral genicular a.
inferior medial/ lateral genicular a.
middle genicular a.
descending branch of lateral femoral circumflex artery
descending genicular artery (from femoral a.)
- articular branch
- saphenous branch

Question 25

knee joint is this type of joint

Answer 25

diarthrotic, primarily hinge type of synovial joint (flexion and extension)

Question 26

5 extracapsular knee joint ligaments

Answer 26

patellar ligament
FCL
TCL (intrinsic)
oblique popliteal ligament (intrinsic)
arcuate popliteal ligament
[ intrinsic = thickened capsule]

Question 27

what separates lateral meniscus from fibular collateral ligamnet?

Answer 27

popliteus tendon

Question 28

this ligament at knee joint represents an expansion of semi-membranosus tendon

Answer 28

oblique popliteal ligament

Question 29

bundles of ACL and their functions

Answer 29

AMB resists anterior tibial translation espexially during flexion
PLB resists anterior tibial translation and tibial rotation in extension