Lecture 8 - Muscles of the Lower Extremity and Hip

Question 1

what is the ilopsoas comprised of?

Answer 1

• iliacus
• psoas major
• psoas minor

Question 2

muscles of anterior compartment of thigh

Answer 2

sartorius
quadriceps femoris (and its 4 muscles)

Question 3

what makes up the quadricep femoris?

Answer 3

• rectus femoris
• vastus lateralis
• vastus medialis
• vastus intermedius

Question 4

what are the three adductors?

Answer 4

adductor longus
adductor brevis
adductor magnus

Question 5

brevis

Answer 5

short

Question 6

magnum

Answer 6

large

Question 7

hallucis

Answer 7

great toe

Question 8

digitorum

Answer 8

digits of hand or feet

Question 9

muscles of the medial compartment of thigh

Answer 9

pectineus
gracilis
adductors (3 muscles)

Question 10

muscles of the posterior compartment of thigh (hamstrings)

Answer 10

• biceps femoris
• semitendinosus
• semimembranosus

Question 11

what are the gluteal muscles?

Answer 11

• gluteus maximus
• gluteus medius
• gluteus minimus

Question 12

three compartments of the thigh

Answer 12

anterior, posterior, medial

Question 13

muscles of anterior compartment of leg

Answer 13

• tibialis anterior
• fibularis tertius
• extensor digitorum longus
• extensor hallucis longus

Question 14

muscles of lateral compartment of leg

Answer 14

• fibularis longus
• fibularis brevis

Question 15

muscles of posterior compartment of leg

Answer 15

• triceps surae
• plantaris

Question 16

what makes up the triceps surae?

Answer 16

• gastrocnemius
• soleus

Question 17

what makes up the deep muscles of the posterior compartment of the leg?

Answer 17

• popliteus
• flexor digitorum longus
• flexor hallucis longus
• tibialis posterior

Question 18

what are the fibularis muscles?

Answer 18

fibularis longus, brevis and tertius

Question 19

lateral rotator of leg

Answer 19

piriformis

Question 20

6 hip flexor muscles

Answer 20

• pectineus
• sartorius
• gracilis
• rectus femoris
• adductor longus
• adductor magnus

Question 21

what is the TFL and where is it located?

Answer 21

tensor fasciae latae

Question 22

what is the iliotibial tract?

Answer 22

thickened portion of the fascia latae that extends from the iliac crest to the knee

Question 23

obturator muscles

Answer 23

obturator externus (adduction)
obturator internus (abduction)

Question 24

what are intrinsic foot muscles?

Answer 24

• group of muscle that originate and insert within the foot
• 2 groups: plantar and dorsal

Question 25

a pair of small triangle-shaped muscles found among the posterior hip

Answer 25

superior and inferior gemellus

Question 26

what is the role of the intrinsic foot muscles?

Answer 26

they help to flex, extend, abduct, and adduct the toes

Question 27

the 5 deep gluteal muscles are…

Answer 27

1.) Piriformis
2.) Gemellus superior
3.) Obturator internus
4.) Gemellus inferior
5.) Obturator externus (not proper = more anterior)
6.) Quadratus (femoris)

Question 28

what gluteal muscle is more anterior?

Answer 28

obturator externus