lecture 2

Question 1

What are the three compartments of the thigh?

Answer 1

Anterior, Medial, Posterior

Question 2

What muscles are found in the anterior compartment of the thigh?

Answer 2

• Psoas major
• Iliacus
• Pectineus
• Sartorius
• Quadriceps femoris group

Question 3

What is the primary function of the hip flexors?

Answer 3

Flexes hip

Question 4

Which nerve innervates the Psoas major?

Answer 4

L1-L3

Question 5

What is the function of the Iliacus?

Answer 5

Flexes hip

Question 6

What are the functions of the Pectineus?

Answer 6

• Flexes
• Adducts
• Medially rotates

Question 7

What is the main function of the Sartorius muscle?

Answer 7

• Flexes
• Abducts
• Laterally rotates
• Flexes knee

Question 8

What does the Quadriceps femoris group primarily do?

Answer 8

Extends knee

Question 9

What is the function of the Rectus femoris?

Answer 9

• Flexes hip
• Extends knee

Question 10

What are the four muscles that make up the Quadriceps femoris group?

Answer 10

• Rectus femoris
• Vastus medialis
• Vastus lateralis
• Vastus intermedius

Question 11

What are the main functions of the medial compartment of the thigh?

Answer 11

Thigh adductors

Question 12

Which nerve innervates the Adductor longus?

Answer 12

Obturator nerve L2-L4

Question 13

What is the function of the Adductor magnus?

Answer 13

• Adducts
• Extends thigh

Question 14

What muscle is involved in flexing and medially rotating the leg?

Answer 14

Gracilis

Question 15

What is the main function of the hamstrings?

Answer 15

• Extends hip
• Flexes knee
• Medially rotates leg

Question 16

Which nerve innervates the Semitendinosus?

Answer 16

Tibial nerve L5-S2

Question 17

What is a common athletic injury related to the hamstrings?

Answer 17

Hamstring strain

Question 18

What causes an avulsion fracture in the hamstrings?

Answer 18

Sudden force pulling off ischial tuberosity

Question 19

What are the superficial muscles of the gluteal region?

Answer 19

• Gluteus maximus
• Gluteus medius
• Gluteus minimus
• Tensor fascia lata

Question 20

What is the primary function of the Gluteus maximus?

Answer 20

• Thigh extension
• Lateral rotation

Question 21

Which nerve innervates the gluteal muscles?

Answer 21

• Inferior gluteal nerve L5-S2 for Gluteus maximus
• Superior gluteal nerve L5-S1 for Gluteus medius, minimus, and Tensor fascia lata

Question 22

What does the Trendelenburg test indicate?

Answer 22

Weakness of gluteus medius/minimus due to superior gluteal nerve injury

Question 23

What are the deep muscles/lateral rotators of the gluteal region?

Answer 23

• Piriformis
• Obturator internus
• Superior gemellus
• Inferior gemellus
• Quadratus femoris

Question 24

What is the function of the Piriformis muscle?

Answer 24

Lateral rotation

Question 25

What is the recommended site for intramuscular injection in the gluteus maximus?

Answer 25

Upper outer quadrant

Question 26

What is the purpose of injecting in the upper outer quadrant of the gluteus maximus?

Answer 26

To avoid sciatic nerve injury