Anatomy Quiz-anterior Lower Leg
(111).webp "Anatomy Quiz-anterior Lower Leg - Quiz")
Muscles of front of the leg
- 1.
What are the actions of the tensor fascia latae?
- A.
Hip extension, laterally rotates hip adducts hip
- B.
Hip flexion medially rotates hip abducts hip
- C.
Medially rotates thigh hip flexion hip adduction
- D.
Knee flexion hip abductor
Correct Answer
B. Hip flexion medially rotates hip abducts hipExplanation
The tensor fascia latae is a muscle located in the hip region. It is responsible for multiple actions, including hip flexion, medially rotating the hip, and abducting the hip. This means that the muscle helps to bring the thigh towards the body, rotate the thigh inward, and move the thigh away from the midline of the body.Rate this question:
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- 2.
What is the origin of the glueteus medius?
- A.
Ilium
- B.
Anterior Superior Iliac Spine
- C.
Anterior Inferior Iliac Spine
- D.
Inferior margin of obturator foramen
Correct Answer
A. IliumExplanation
The origin of the gluteus medius is the ilium.Rate this question:
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- 3.
What is the insertion of the obturator externus?
- A.
Lesser trochanter of femur
- B.
Anterior superior iliac spine
- C.
Greater trochanter of femur
- D.
Ilium
Correct Answer
C. Greater trochanter of femurExplanation
The insertion of the obturator externus muscle is the greater trochanter of the femur. This means that the muscle attaches to the prominent bony projection on the upper part of the femur bone.Rate this question:
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- 4.
What are the actions of the gluteus minimus?
- A.
Adduct and laterally rotates thigh
- B.
Hip flexion
- C.
Extends knee
- D.
Abduct and medially rotates thigh
Correct Answer
D. Abduct and medially rotates thighExplanation
The gluteus minimus is a muscle located in the buttocks. Its main actions are to abduct the thigh (move it away from the midline of the body) and medially rotate the thigh (rotate it inward towards the midline of the body). These actions are important for maintaining balance and stability during movements such as walking and running. The other options listed in the question (adduct and laterally rotate thigh, hip flexion, and extends knee) are not actions of the gluteus minimus.Rate this question:
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- 5.
What is the origin of piriformis?
- A.
Sacrum ilium
- B.
Greater trochanter
- C.
Lesser trochanter
- D.
Inferior margin of obturator foramen
Correct Answer
A. Sacrum iliumExplanation
The piriformis muscle originates from the sacrum and the ilium.Rate this question:
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- 6.
What is the insertion of the Gluteus Maximus?
- A.
Greater trochanter
- B.
Pes anserine
- C.
Anterior superior iliac spine
- D.
Gluteal tuberosity of femur
Correct Answer
D. Gluteal tuberosity of femurExplanation
The insertion of the Gluteus Maximus is the gluteal tuberosity of the femur. This means that the Gluteus Maximus muscle attaches to the bony prominence on the back of the femur called the gluteal tuberosity. This attachment allows the Gluteus Maximus to exert force on the femur, helping to extend and externally rotate the hip joint.Rate this question:
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- 7.
What is the action of the Gluteus Medius?
- A.
Adducts and laterally rotates thigh
- B.
Abducts (mainly hip extended) medially rotates thigh
- C.
Knee flexion
- D.
Extension of hip
Correct Answer
B. Abducts (mainly hip extended) medially rotates thighExplanation
The Gluteus Medius is a muscle located in the buttocks region. Its main action is to abduct the thigh, which means it moves the leg away from the midline of the body. Additionally, it also helps in medially rotating the thigh, which means it rotates the thigh inward. This action is mainly observed when the hip is extended, or when the leg is moved backward.Rate this question:
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- 8.
What is the origin of the Gluteus Minimus?
- A.
Ilium
- B.
Pubis crest
- C.
Greater trochanter
- D.
Sacrum
Correct Answer
A. IliumExplanation
The Gluteus Minimus originates from the ilium.Rate this question:
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- 9.
What is the insertion of the piriformis?
- A.
Ilium
- B.
Greater trochanter (through greater sciatic foramen)
- C.
Lesser trochanter (through greater sciatic foramen)
- D.
Sacrum
Correct Answer
B. Greater trochanter (through greater sciatic foramen)Explanation
The insertion of the piriformis muscle is the greater trochanter, which is located on the femur bone. The muscle passes through the greater sciatic foramen, a bony opening in the pelvis, to reach its insertion point. This allows the piriformis muscle to play a role in hip rotation and stability. The other options listed, such as the ilium and sacrum, are not the correct insertion points for the piriformis muscle.Rate this question:
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- 10.
What is the origin of the obturator interus?
- A.
Superior margin of obturator foramen
- B.
Anterior inferior iliac spine
- C.
Inferior margin obturator foramen
- D.
Greater trochanter
Correct Answer
C. Inferior margin obturator foramenExplanation
The origin of the obturator internus muscle is from the inferior margin of the obturator foramen. This muscle is located in the pelvic region and helps in the rotation and stabilization of the hip joint. It originates from the inner surface of the pelvis and passes through the lesser sciatic notch to attach to the greater trochanter of the femur. Therefore, the correct answer is the inferior margin of the obturator foramen.Rate this question:
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- 11.
What is the action of the superior gemellus?
- A.
Adducts thigh when flexed
- B.
Medially rotates femur
- C.
Laterally rotates thigh
- D.
Laterally rotates femur
Correct Answer
D. Laterally rotates femurExplanation
The superior gemellus is a muscle located in the hip region. Its action is to laterally rotate the femur, which means it moves the thigh bone away from the midline of the body. This action helps in movements such as turning the leg outward or away from the body.Rate this question:
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- 12.
What is the insertion of the inferior gemellus?
- A.
Greater trochanter
- B.
Ischial tuberosity
- C.
Anterior iliac spine
- D.
Inferior obturator foramen
Correct Answer
A. Greater trochanterExplanation
The insertion of the inferior gemellus muscle is the greater trochanter. The gemellus muscles are two small muscles located in the hip region. The inferior gemellus muscle arises from the ischial tuberosity and inserts onto the greater trochanter of the femur. This muscle plays a role in rotating the thigh laterally and helps stabilize the hip joint. Therefore, the correct answer is the greater trochanter.Rate this question:
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- 13.
What is the action of the obturator externus?
- A.
Medially rotates thigh
- B.
Abducts thigh
- C.
Hip flexor
- D.
Laterally rotates thigh
Correct Answer
D. Laterally rotates thighExplanation
The obturator externus is a muscle located in the hip region. Its main action is to laterally rotate the thigh. This means that it helps in turning the thigh away from the midline of the body, causing the leg to move outward.Rate this question:
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- 14.
What is the origin of the quadratus femoris?
- A.
Intertrochanteric crest of femur
- B.
Greater trochanter
- C.
Ischial tuberosity
- D.
Sacrum
Correct Answer
C. Ischial tuberosityExplanation
The origin of the quadratus femoris is the ischial tuberosity. This is the bony prominence located at the base of the pelvis, specifically on the posterior aspect of the ischium bone. The quadratus femoris muscle originates from this point and plays a role in hip joint stability and rotation.Rate this question:
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- 15.
What is the insertion of the tensor fascia latae?
- A.
Through iliotibial tract (IT Band) to medial condyle of tibia
- B.
Through iliotibial tract (IT Band) to lateral condyle of fibula
- C.
Greater trochanter
- D.
Through iliotibial tract (IT Band) to lateral condyle of tibia
Correct Answer
D. Through iliotibial tract (IT Band) to lateral condyle of tibiaExplanation
The correct answer is through iliotibial tract (IT Band) to lateral condyle of tibia. The tensor fascia latae muscle inserts into the lateral condyle of the tibia through the iliotibial tract, which is a thick band of connective tissue that runs down the outside of the thigh. This insertion allows the muscle to contribute to the stability and movement of the knee joint.Rate this question:
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- 16.
What is the action of the gluteus maximus?
- A.
Powerful flexor of hip and medially rotates thigh
- B.
Powerful extensor of hip and laterally rotates thigh
- C.
Adducts hip and thigh
- D.
Abducts hip and laterally rotates thigh
Correct Answer
B. Powerful extensor of hip and laterally rotates thighExplanation
The gluteus maximus is a powerful muscle responsible for extending the hip joint and laterally rotating the thigh. It helps in activities such as climbing stairs, running, and standing up from a seated position. This muscle is the largest and strongest in the gluteal region and plays a crucial role in maintaining stability and balance during movement.Rate this question:
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- 17.
What is the insertion of the Gluteus medius?
- A.
Greater trochanter
- B.
Ilium
- C.
Sacrum
- D.
Lesser trochanter
Correct Answer
A. Greater trochanterExplanation
The insertion of the Gluteus medius is the greater trochanter. This is the point where the muscle attaches to the bone. The Gluteus medius is a muscle located in the buttocks and is responsible for abduction and stabilization of the hip joint. The greater trochanter is a bony prominence on the femur, located on the outer side of the hip joint. When the Gluteus medius contracts, it pulls on the greater trochanter, allowing for movement and stability in the hip joint.Rate this question:
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- 18.
What is the insertion of the gluteus minimus?
- A.
Lesser trochanter
- B.
Ilium
- C.
Greater trochanter
- D.
IT Band
Correct Answer
C. Greater trochanterExplanation
The insertion of the gluteus minimus is the greater trochanter. The gluteus minimus is one of the muscles in the buttocks, and its insertion point is on the greater trochanter, which is a bony prominence on the femur (thigh bone). This muscle plays a role in hip stabilization and abduction, and its insertion on the greater trochanter allows it to assist in these movements.Rate this question:
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- 19.
What is the action of the piriformis?
- A.
Lateral rotation of extend thigh abducts flexed thigh
- B.
Medial rotation of thigh and adducts thigh
- C.
Medial rotation of extend thigh and abducts flexed thigh
- D.
Lateral rotation of femur
Correct Answer
A. Lateral rotation of extend thigh abducts flexed thighExplanation
The piriformis muscle is responsible for the lateral rotation of the extended thigh and the abduction of the flexed thigh. This means that it helps in rotating the thigh away from the midline of the body and moving the thigh away from the body's center.Rate this question:
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- 20.
What muscle does the sciatic nerve pierce?
- A.
Obturator internus
- B.
Piriformis
- C.
Gluteus maximus
- D.
Quadratus femoris
Correct Answer
B. PiriformisExplanation
The sciatic nerve pierces the piriformis muscle. The piriformis muscle is located deep in the buttock, and the sciatic nerve passes through it as it travels down the leg. This muscle plays a role in hip rotation and stability, and when it becomes tight or inflamed, it can compress the sciatic nerve, leading to symptoms such as pain, numbness, and tingling in the buttock and leg.Rate this question:
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- 21.
What is the insertion of the obturator internus?
- A.
Greater trochanter
- B.
Lesser trochanter
- C.
Obturator internus tendon
- D.
Ischial spine
Correct Answer
A. Greater trochanterExplanation
The insertion of the obturator internus is the greater trochanter. This means that the tendon of the obturator internus muscle attaches to the greater trochanter, which is a bony prominence on the femur. The obturator internus muscle is located in the pelvic region and helps to laterally rotate the hip joint. Its insertion on the greater trochanter allows it to exert its pulling force on the femur, contributing to hip movement and stability.Rate this question:
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- 22.
What is the origin of the superior gemellus?
- A.
Obturator internus tendon
- B.
Ilium
- C.
Sacrum
- D.
Ischial spine
Correct Answer
D. Ischial spineExplanation
The superior gemellus muscle originates from the ischial spine.Rate this question:
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- 23.
What is the action of the inferior gemellus?
- A.
Medially rotates thigh
- B.
Laterally rotates thigh
- C.
Abducts femur
- D.
Laterally rotates femur
Correct Answer
D. Laterally rotates femurExplanation
The action of the inferior gemellus is to laterally rotate the femur. This means that it moves the thigh bone away from the midline of the body.Rate this question:
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- 24.
What is the origin of inferior gemellus?
- A.
Greater trochanter
- B.
Ischial tuberosity
- C.
IT Band
- D.
Inferior margin of obturator foramen
Correct Answer
B. Ischial tuberosityExplanation
The origin of the inferior gemellus muscle is the ischial tuberosity. This means that the muscle begins or originates from the ischial tuberosity.Rate this question:
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- 25.
What is the origin of the obturator externus?
- A.
Superior margin of obturator foramen
- B.
Ischial tuberosity
- C.
Inferior margin of obturator foramen
- D.
Intertrochanteric crest of femur
Correct Answer
C. Inferior margin of obturator foramenExplanation
The origin of the obturator externus muscle is the inferior margin of the obturator foramen. This means that the muscle begins at the lower edge of the opening in the hip bone called the obturator foramen.Rate this question:
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- 26.
What is the action of quadratus femoris?
- A.
Medially rotates femur
- B.
Abducts thigh
- C.
Adducts femur
- D.
Laterally rotates femur
Correct Answer
D. Laterally rotates femurExplanation
The action of quadratus femoris is to laterally rotate the femur. This means that it helps to turn the thigh bone outward, away from the midline of the body.Rate this question:
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- 27.
What is the insertion of quadratus femoris?
- A.
Greater trochanter
- B.
Ischial tuberosity
- C.
Intertrochanteric crest of femur
- D.
Anterior superior iliac crest
Correct Answer
C. Intertrochanteric crest of femurExplanation
The insertion of quadratus femoris is the intertrochanteric crest of the femur. This muscle originates from the ischial tuberosity and inserts onto the intertrochanteric crest, which is a bony ridge located on the posterior aspect of the femur. The quadratus femoris muscle is responsible for laterally rotating the thigh and stabilizing the hip joint.Rate this question:
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- 28.
What is the origin of the tensor fascia latae?
- A.
Anterior inferior iliac spine
- B.
IT Band
- C.
Greater trochanteric
- D.
Anterior superior iliac spine
Correct Answer
D. Anterior superior iliac spineExplanation
The tensor fascia latae muscle originates from the anterior superior iliac spine. This is a bony projection located at the front of the ilium, which is part of the hip bone. The muscle then runs down the thigh and inserts into the iliotibial band (IT band), which is a thick band of connective tissue that runs along the outside of the thigh. The anterior superior iliac spine serves as the starting point for the tensor fascia latae muscle, allowing it to contribute to various movements and stability of the hip and knee joints.Rate this question:
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- 29.
What is NOT origin of the gluteus maximus?
- A.
Ilium
- B.
It band
- C.
Coccyx
- D.
Sacrum
Correct Answer
B. It bandExplanation
The gluteus maximus muscle is not originated from the ilium, sacrum, or coccyx. However, it is incorrect to say that the IT band is the origin of the gluteus maximus. The IT band, also known as the iliotibial band, is a thick band of connective tissue that runs along the outside of the thigh. It functions to stabilize the knee joint and assist in hip abduction. The gluteus maximus muscle, on the other hand, originates from the posterior gluteal line of the ilium, the sacrum, and the coccyx.Rate this question:
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- 30.
What is the action of obturator internus?
- A.
Medially rotates femur
- B.
Laterally rotates femur
- C.
Abducts thigh
- D.
Laterally rotates thigh
Correct Answer
B. Laterally rotates femurExplanation
The obturator internus muscle is responsible for laterally rotating the femur. This means that it helps to turn the thigh bone outward, away from the midline of the body. This action is important for various movements such as walking, running, and standing.Rate this question:
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- 31.
What is the insertion of superior gemellus
- A.
Obturator internus tendon
- B.
Ischial spine
- C.
IT Band
- D.
Inferior margin of obturator foramen
Correct Answer
A. Obturator internus tendonExplanation
The insertion of the superior gemellus is the obturator internus tendon.Rate this question:
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Feb 21, 2024Quiz Edited by
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Oct 12, 2011Quiz Created by
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