Lecture 18-19 final review

Question 1

what are the muscles that move the thigh only?

Answer 1

iliopsoas muscle 
Gluteal group
1)gluteus maximus
2)gluteus medius
3)gluteus minimus 
Tensor fasciae latae 
Lateral rotator
Adductor muscle group
1)brevis
2)longis
3)magnus
pectineus
gracillis

Question 2

Flexors of the thigh and hip:

what group is responsible for this?

Answer 2

Iliopsoas group

• psoas major
• iliacus

Question 3

The psoas major also move lumbar spine… But which way?

Answer 3

it will move lumbar into flexion

helps up move pelvis forward

Question 4

Gluteal muscles:

what does the Gluteus maximus do?

Answer 4

extends, lateral rotation, abduction (upper fibers)

Question 5

Gluteal muscles:

what does the gluteus medius do?

Answer 5

abduction, med. rotation

Question 6

Gluteal muscles:

what does the gluteus minimus do?

Answer 6

abduction (med. rotation)

Question 7

What else can the gluteus maxinus be used for?

Answer 7

used to stabilize the knee when the leg is extended at the knee (standing on one leg)

Question 8

what are the lateral rotator muscles?

Answer 8

piriformis
superior gemellus
obturator internus
inferior gemellus
quardatus femoris

Question 9

Lateral rotator group

what are the 6 external rotators?

Answer 9

obturator muscles 
- externus and internus
piriformis muscle
gemelli muscle 
-superior and inferior 
quadratus femoris muscle 

*also gluteus maximus

Question 10

What are the adductors of the thigh?

Answer 10

Adductor brevis
Adductor longus 
Adductor Magnus
pectineus m
Gracilis

Question 11

what are extensors of the thigh at hip?

Answer 11

Hamstring muscle group

• biceps gemoris muscle
• semitendinosus muscle
• semimembranosus muscle

Question 12

the hamstring muscle group does what?

Answer 12

flexors of the knee

Question 13

what are the extensors of the knee?

Answer 13

rectus femoris
vastus latralis
vastus medialis

Question 14

of the quadriceps and anterior thigh muscles which one influences the hip?

Answer 14

gracilis

Question 15

what thigh adductor muscle also affects the movement of the knee?

Answer 15

gracilis

Question 16

what are four supporting structures for the knee?

Answer 16

menisci
ligaments
muscle tendons
bursae

Question 17

what does the menisci of the knee do?

Answer 17

stability and absorbs shock

Question 18

what are the ligaments of the knee joint?

Answer 18

collateral ligaments

cruciate ligaments

Question 19

what does that collateral ligaments do?

in what position is it the most tight?

Answer 19

provides lateral and medial stability

extension at knee

slack when joint is in partial flexion

Question 20

how are the cruciate ligaments named?

Answer 20

according to where they are attached to the tibia

Question 21

What position is the posterior Cruciates ligaments most tight?

Answer 21

pulled tight when knee is fully flexed

a little slack when joint in extension

Question 22

When is the anterior cruciate ligaments most tight?

Answer 22

pulled tight when knee is fully extended

and a little slack when joint is flexed

Question 23

what does the popliteal ligaments do?

Answer 23

provide posterior reinforcement

medial rotation of tibia and lateral rotation of femur

Question 24

what do you need the popliteal muscle for?

Answer 24

to initiate slight medial rotation of tibia to unlock knee joint

Question 25

full extension of knee involves what?

Answer 25

external (lateral) rotation of tibia

Question 26

flexion from full extension of knee joint involves what?

Answer 26

internal (medial) rotation of tibia

Question 27

What provides anterior reinforcement?

Answer 27

patellar ligament

extension of quadriceps tendon - connection to tibial tuberosity

Question 28

what are the anterior and posterior support structures for the knee joint?

Answer 28

anterior:
quadriceps muscle groups
sartorius and gracilis muscles

posterior
hamstring muscle group
popliteus muscle
gastrocnemius muscle