Thigh Anatomy Quiz
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Questions and Answers

What are the boundaries of the femoral triangle?

  • Inguinal ligament, sartorius muscle, and adductor longus. (correct)
  • Sartorius muscle, rectus femoris, and iliopsoas.
  • Adductor longus, pectineus, and iliopsoas.
  • Inguinal ligament, gluteus maximus, and vastus medialis.

    • Which structure is NOT contained within the femoral triangle?

  • Popliteal artery (correct)
  • Femoral artery
  • Femoral vein
  • Femoral nerve

    • What is the primary content of the adductor canal?

  • Femoral artery
  • Saphenous nerve (correct)
  • Obturator nerve
  • Femoral nerve

    • Which muscle does NOT form the boundaries of the adductor canal?

    <p>Pectineus</p> Signup and view all the answers

    Where is the femoral triangle located?

    <p>Inferior to the true pelvis.</p> Signup and view all the answers

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

    <p>Extensors of the knee</p> Signup and view all the answers

    What anatomical feature separates the compartments of the thigh?

    <p>Intermuscular septa</p> Signup and view all the answers

    Which muscle group is primarily located in the medial compartment of the thigh?

    <p>Adductors of the hip</p> Signup and view all the answers

    How many compartments is the thigh divided into?

    <p>3</p> Signup and view all the answers

    Which compartment of the thigh contains the quadriceps muscle?

    <p>Anterior compartment</p> Signup and view all the answers

    Which muscle is located in the anterior compartment of the thigh?

    <p>Rectus femoris</p> Signup and view all the answers

    Which of the following muscles is NOT part of the anterior compartment of the thigh?

    <p>Adductor longus</p> Signup and view all the answers

    What is the primary function of the muscles in the anterior compartment of the thigh?

    <p>Extension of the knee</p> Signup and view all the answers

    Which muscle in the anterior compartment of the thigh assists with hip flexion?

    <p>Rectus femoris</p> Signup and view all the answers

    Which one of these muscles is part of the quadriceps group in the anterior compartment?

    <p>Vastus intermedius</p> Signup and view all the answers

    What muscle is indicated by the term 'Sartorius'?

    <p>A long muscle of the thigh</p> Signup and view all the answers

    Which muscle is primarily responsible for adduction of the thigh?

    <p>Adductor magnus</p> Signup and view all the answers

    Which of the following muscles is NOT part of the adductor group?

    <p>Rectus femoris</p> Signup and view all the answers

    The Pectineus muscle is primarily located in which part of the body?

    <p>Medial thigh</p> Signup and view all the answers

    What is a common action performed by the Sartorius muscle?

    <p>Flexion of the hip and knee</p> Signup and view all the answers

    What is the primary role of the psoas major muscle?

    <p>Flexing the hip joint</p> Signup and view all the answers

    Which muscle works in conjunction with the psoas major as an adductor?

    <p>Iliacus</p> Signup and view all the answers

    What is NOT a function of the iliacus muscle?

    <p>Adducting the thigh</p> Signup and view all the answers

    Which action is most directly associated with both the psoas major and iliacus muscles?

    <p>Flexion of the hip</p> Signup and view all the answers

    What anatomical characteristic identifies the psoas major muscle?

    <p>It runs vertically along the spine</p> Signup and view all the answers

    Which muscle is part of the adductor group and is known for its long shape?

    <p>Adductor longus</p> Signup and view all the answers

    Which of the following adductor muscles is the smallest in the group?

    <p>Adductor brevis</p> Signup and view all the answers

    Which adductor muscle is the largest and has a significant contribution to hip movement?

    <p>Adductor magnus</p> Signup and view all the answers

    Among the following options, which muscle is not typically classified under the adductor thigh muscles?

    <p>Quadriceps femoris</p> Signup and view all the answers

    Which muscle is specifically referred to in its 'adductor part' nomenclature?

    <p>Adductor magnus</p> Signup and view all the answers

    Study Notes

    Frontal & Medial Of The Thigh

    • The thigh is divided into three compartments by intermuscular septa extending from deep fascia into the femur.
    • The anterior compartment contains extensors of the knee.
    • The medial compartment contains adductors of the hip.
    • The posterior compartment contains both flexors of the knee and extensors of the hip (hamstrings).
    • The femoral triangle lies superiorly in the anterior compartment of the thigh.
    • The adductor canal, also known as the subsartorial canal, is an intramuscular passage lying inferior to the femoral triangle.

    Objectives

    • Students should list the muscles of the anterior compartment of the thigh.
    • Students should describe the anatomy of the anterior compartment muscles (origin, insertion, nerve supply, and actions).
    • Students should list the muscles of the medial compartment of the thigh.
    • Students should describe the anatomy of the medial compartment muscles (origin, insertion, nerve supply, and actions).
    • Students should describe the anatomy of the femoral triangle and adductor canal (site, boundaries, and contents).

    Superficial Structures of the Anterior Thigh

    • The saphenous opening is a significant landmark.
    • Superficial arteries, the saphenous vein, and cutaneous nerves are present.
    • Branching from superficial arteries, the Saphenous opening, and cutaneous nerves are important findings in this area.

    Anterior & Medial Compartment Muscles - Detailed Breakdown of Individual Muscles

    • Quadriceps femoris: Origin: anterior inferior iliac spine; vastus intermedius: front of the femur shaft; vastus medialis: posterior border of the femur; vastus lateralis: posterior border of the femur (linea aspera). Insertion: into the patella, then through the patellar ligament to the tibial tuberosity. Action: extension of the knee joint.
    • Sartorius: Origin: anterior superior iliac spine. Insertion: upper part of the medial surface of the tibia. Action: flexion, abduction, and lateral rotation of the hip joint; flexion of the knee joint.
    • Pectineus: Origin: superior pubic ramus. Insertion: back of the femur (below lesser trochanter). Action: flexion and adduction of the hip joint.
    • Iliopsoas (Iliacus and Psoas Major): Origin: lumbar spine and iliac fossa. Insertion: lesser trochanter of the femur. Action: flexion of the hip joint.
    • Adductor longus, brevis, magnus (adductor part), and gracilis: Origin: various sites on pubis and ischium. Insertion: posterior border of the femur (linea aspera) and upper part of medial surface of tibia. Action: adduction of the hip joint. Gracilis also flexes the knee joint. The nerve supply for these muscles is the obturator nerve.

    Femoral Triangle

    • Site: Upper one-third of the front of the thigh.
    • Boundaries: Base: inguinal ligament; lateral: medial border of the sartorius; medial: medial border of the adductor longus.
    • Roof: Skin and fasciae (superficial and deep).
    • Floor: From medial to lateral (adductor longus, pectineus, psoas major, iliacus).
    • Contents: Femoral vein, femoral artery, femoral nerve, deep inguinal lymph nodes.

    Adductor Canal

    • Definition: Intramuscular passage of a fascial envelope for femoral artery and vein.
    • Site: Middle one-third of the front of the thigh.
    • Extent: From apex of the femoral triangle to the adductor hiatus (in the adductor magnus).
    • Boundaries: Roof: Sartorius; Floor: Adductor longus and Magnus.

    References

    • Gray's Anatomy for Students - Second edition.
    • Clinically Oriented Anatomy, Keith L. Moore - Sixth edition.
    • Netter's Clinical Anatomy, Second edition.

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    Description

    Test your knowledge on the anatomy of the thigh with a focus on the frontal and medial compartments. This quiz will cover the muscles, their functions, and anatomical details, including origins, insertions, and nerve supply. Perfect for students studying human anatomy.

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