MSK lower extremity

Question 1

What are the primary bones of the lower extremity?

Answer 1

Femur, tibia, fibula, patella, tarsals, metatarsals, phalanges.

Question 2

What is the main function of the quadriceps muscle group?

Answer 2

To extend the knee.

Question 3

True or False: The hip joint is a ball-and-socket joint.

Answer 3

True.

Question 4

Fill in the blank: The _____ is the longest bone in the human body.

Answer 4

femur.

Question 5

Which muscle originates from the anterior inferior iliac spine?

Answer 5

Rectus femoris.

Question 6

What is the insertion point of the gastrocnemius muscle?

Answer 6

Calcaneus via the Achilles tendon.

Question 7

Multiple choice: Which of the following muscles is responsible for hip flexion? A) Gluteus maximus B) Iliopsoas C) Hamstrings

Answer 7

B) Iliopsoas.

Question 8

What action does the hamstring group primarily perform?

Answer 8

Knee flexion and hip extension.

Question 9

True or False: The fibula bears significant weight in the lower leg.

Answer 9

False.

Question 10

What is the primary action of the gluteus maximus?

Answer 10

Hip extension.

Question 11

Which bony landmark is located at the distal end of the femur?

Answer 11

Medial and lateral condyles.

Question 12

Fill in the blank: The _____ serves as the primary stabilizer of the knee joint.

Answer 12

ligaments.

Question 13

What is the origin of the tibialis anterior muscle?

Answer 13

Lateral condyle of the tibia and interosseous membrane.

Question 14

Multiple choice: Which muscle inserts on the greater trochanter of the femur? A) Gluteus medius B) Quadratus femoris C) Sartorius

Answer 14

A) Gluteus medius.

Question 15

What is the primary action of the soleus muscle?

Answer 15

Plantarflexion of the foot.

Question 16

True or False: The patella is a sesamoid bone.

Answer 16

True.

Question 17

What is the insertion of the iliotibial band?

Answer 17

Lateral condyle of the tibia.

Question 18

Which muscle group is known as the adductors?

Answer 18

Adductor longus, adductor brevis, adductor magnus.

Question 19

Fill in the blank: The _____ nerve innervates the quadriceps muscle.

Answer 19

femoral.

Question 20

What is the origin of the semitendinosus muscle?

Answer 20

Ischial tuberosity.

Question 21

Multiple choice: Which muscle is NOT part of the rotator cuff? A) Supraspinatus B) Infraspinatus C) Rectus femoris

Answer 21

C) Rectus femoris.

Question 22

What is the primary action of the peroneus longus?

Answer 22

Eversion of the foot.

Question 23

True or False: The tibia is medial to the fibula.

Answer 23

True.

Question 24

Which bony landmark is found on the anterior aspect of the pelvis?

Answer 24

Pubic symphysis.

Question 25

What is the action of the sartorius muscle?

Answer 25

Flexes, abducts, and laterally rotates the hip.

Question 26

Fill in the blank: The _____ connects the tibia and fibula.

Answer 26

interosseous membrane.

Question 27

What is the origin of the adductor magnus?

Answer 27

Ischial tuberosity and inferior ramus of the pubis.

Question 28

Multiple choice: Which muscle is primarily responsible for inversion of the foot? A) Tibialis posterior B) Peroneus brevis C) Gastrocnemius

Answer 28

A) Tibialis posterior.

Question 29

What is the primary action of the flexor digitorum longus?

Answer 29

Flexes the toes.

Question 30

True or False: The hip flexors include the iliopsoas and rectus femoris.

Answer 30

True.

Question 31

What is the insertion of the pectineus muscle?

Answer 31

Pectineal line of the femur.

Question 32

Which bony landmark serves as the site for muscle attachment on the ischium?

Answer 32

Ischial tuberosity.

Question 33

Fill in the blank: The _____ ligament stabilizes the hip joint.

Answer 33

iliofemoral.

Question 34

What is the action of the extensor digitorum longus?

Answer 34

Extends the toes and dorsiflexes the foot.

Question 35

Multiple choice: Which muscle is a primary knee flexor? A) Biceps femoris B) Vastus lateralis C) Gluteus medius

Answer 35

A) Biceps femoris.

Question 36

What is the insertion point of the tibialis posterior muscle?

Answer 36

Navicular and medial cuneiform bones.

Question 37

True or False: The gluteus minimus assists in hip abduction.

Answer 37

True.

Question 38

What is the origin of the vastus lateralis?

Answer 38

Greater trochanter and linea aspera of the femur.

Question 39

Fill in the blank: The _____ is the main weight-bearing bone of the lower leg.

Answer 39

tibia.

Question 40

What action does the popliteus muscle perform?

Answer 40

Unlocks the knee.

Question 41

Multiple choice: Which structure is NOT part of the ankle joint? A) Talus B) Calcaneus C) Femur

Answer 41

C) Femur.

Question 42

What is the origin of the gluteus medius?

Answer 42

Ilium between the anterior and posterior gluteal lines.

Question 43

True or False: The pes anserinus is formed by the tendons of three muscles.

Answer 43

True.

Question 44

What is the primary action of the flexor hallucis longus?

Answer 44

Flexes the big toe.

Question 45

Fill in the blank: The _____ is the primary muscle responsible for dorsiflexion of the foot.

Answer 45

tibialis anterior.

Question 46

What is the insertion of the gracilis muscle?

Answer 46

Superior part of the medial surface of the tibia.

Question 47

Multiple choice: Which muscle is primarily responsible for hip adduction? A) Gluteus maximus B) Adductor longus C) Iliopsoas

Answer 47

B) Adductor longus.

Question 48

What is the origin of the fibularis brevis?

Answer 48

Distal half of the fibula.

Question 49

True or False: The medial malleolus is a bony landmark of the fibula.

Answer 49

False.

Question 50

What is the primary action of the tibialis anterior muscle?

Answer 50

Dorsiflexion of the foot.

Question 51

Fill in the blank: The _____ of the hip joint allows for a wide range of motion.

Answer 51

ball-and-socket structure.