Medial Side Of Thigh Lower Limb Question And Answers

Medial Side Of Thigh Question And Answers

Question 1. Give a description of the medial side of the thigh with its boundaries and contents.
Answer:

Medial Side Of The Thigh

• Medial side of the thigh contains adductors of the hip joint, hence called the adductor compartment.
• The adductor compartment of the thigh is well-developed compared to its counterpart in upper limb which is only represented by weak coracobrachialis muscle.

Medial Side Of Thigh Boundaries

• Anterior: Anterior intermuscular septum separating medial side from front/extensor compartment of thigh
• Posterior: Ill defied posterior intermuscular septum separating it from back/flexor compartment of thigh.

Medial Side Of Thigh Contents

• Muscles:
  • Intrinsic
    • Adductor longus
    • Adductor brevis
    • Adductor magnus
    • Gracilis
    • Pectineus
  • Extrinsic
    • Obturator externus
  • Nerves:
    • Obturator nerve
    • Accessory obturator nerve (in 30% of individuals only).
  • Arteries:
    • Obturator artery
    • Medial circumflex femoral artery.

Question 2. List the muscles of the adductor compartment of the thigh. Mention the nerve supply of hybrid muscles among them.
Answer:

The Muscles Of The Adductor Compartment Of The Thigh

Arranged into 3 layers:

1. First/Anterior Layer: Consists of:
   • Pectineus
   • Adductor longus
   • Gracilis
2. Second/Middle Layer: Adductor brevis
3. Third/Posterior Layer: Adductor Magnus

• All the muscles of the medial compartment are supplied by the obturator nerve
• But 2 muscles have a dual nerve supply
  • Pectineus supplied by femoral and obturator nerve
  • Adductor Magnus by posterior division of obturator nerve and tibial part of sciatic nerve.

Read And Learn More: Anatomy Question And Answers 

Question 3. Write a short note on the adductor magnus muscle.
Answer:

Adductor Magnus Muscle Origin

• Inferolateral part of the ischial tuberosity
  • Ramus of the Ischium
  • The lower part of the
  • Inferior ramus of pubis

Adductor Magnus Muscle Insertion

• The medial margin of gluteal tuberosity
  • Linea Aspera
  • Medial supracondylar line
  • Adductor tubercle

Adductor Magnus Muscle Nerve Supply

• Dual nerve supply
  • The posterior division of the obturator nerve supplies the adductor part
  • The tibial part of the sciatic nerve supplies the hamstring part

Adductor Magnus Muscle Action

• Extension of hip
• Flexion of knee

Question 4. Write a short note on the pectineus muscle.
Answer:

Pectineus Muscle Origin

• Pecten pubis
• The upper half of the pectineal surface of the superior ramus of the pubis
• Fascia covering the pectineus

Pectineus Muscle Insertion

• Line extending from the lesser trochanter to linea aspera

Pectineus Muscle Nerve Supply

• Dual nerve supply
  • Femoral nerve
  • Anterior division of obturator nerve

Pectineus Muscle Actions

• Adduction of thigh
• Flexion of thigh

Question 5. Explain the origin, insertion, nerve supply, and actions of the rest of the muscles of the adductor compartment of the thigh.
Answer:

Adductor Compartment Of Thigh

Medial Side Of Thigh Multiple Choice Questions

Question 1. The rider bone is found in the tendinous origin of:

1. Adductor longus
2. Adductor brevis
3. Adductor Magnus
4. Gracilis

Answer: 1. Adductor longus

Question 2. Which among these is not an intrinsic muscle of the medial side of the thigh?

1. Adductor longus
2. Adductor Magnus
3. Pectineus
4. Obturator externus

Answer: 4. Adductor Magnus

Question 3. Which muscle among these is supplied by the sciatic nerve?

1. Adductor longus
2. Adductor Magnus
3. Pectineus
4. None of the above

Answer: 4. None of the above

Question 4. Which among these is the action of the adductor magnus muscle?

1. Extension of hip
2. Flexion of knee
3. Flexion of hip
4. Both a and b

Answer: 4. Both a and b

Question 5. Which is the nerve of the adductor compartment of the thigh?

1. Sciatic nerve
2. Obturator nerve
3. Femoral nerve
4. Sural nerve

Answer: 2. Obturator nerve