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Sartorius — Anatomy Notes, Diagram & Quiz
The Sartorius is located in the anterior thigh. Longest muscle in the body, flexes hip and knee, externally rotates thigh. The Sartorius flexes, abducts, and externally rotates the hip, and flexes the knee.
Key facts
| Location | Anterior thigh |
|---|---|
| Main function | Longest muscle in the body, flexes hip and knee, externally rotates thigh. |
| Layer | superficial muscles |
| Key fact 1 | The Sartorius flexes, abducts, and externally rotates the hip, and flexes the knee. |
| Key fact 2 | The Sartorius runs obliquely across the anterior thigh from the anterior superior iliac spine to the medial tibia. |
| Key fact 3 | Sartorius is used as a landmark for the femoral triangle, where the femoral artery can be palpated. |
Where is the Sartorius located?
The Sartorius is located in the anterior thigh.
The Sartorius flexes, abducts, and externally rotates the hip, and flexes the knee.
What does the Sartorius do?
Longest muscle in the body, flexes hip and knee, externally rotates thigh.
The Sartorius runs obliquely across the anterior thigh from the anterior superior iliac spine to the medial tibia.
What to know for exams
- The Sartorius flexes, abducts, and externally rotates the hip, and flexes the knee.
- The Sartorius runs obliquely across the anterior thigh from the anterior superior iliac spine to the medial tibia.
- Sartorius is used as a landmark for the femoral triangle, where the femoral artery can be palpated.
It belongs to the superficial muscles layer. Learn its location, relations, and the structures it works with.
Clinical relevance
Sartorius is used as a landmark for the femoral triangle, where the femoral artery can be palpated.
Link the sartorius to its blood supply, innervation and relations. That is how exam questions usually test it.
Memory aid: Sartorius
The Sartorius flexes, abducts, and externally rotates the hip, and flexes the knee. The Sartorius runs obliquely across the anterior thigh from the anterior superior iliac spine to the medial tibia. Sartorius is used as a landmark for the femoral triangle, where the femoral artery can be palpated.
Chain it as location → function → clinical link when you revise.
Sartorius anatomy quiz
Five questions. Open each answer after you commit to a response.
-
Where is the Sartorius located?
Reveal answer
Anterior thigh
-
What is the main function of the Sartorius?
Reveal answer
Longest muscle in the body, flexes hip and knee, externally rotates thigh.
-
Give one key fact about the Sartorius.
Reveal answer
The Sartorius flexes, abducts, and externally rotates the hip, and flexes the knee.
-
Give another key fact about the Sartorius.
Reveal answer
The Sartorius runs obliquely across the anterior thigh from the anterior superior iliac spine to the medial tibia.
-
What clinical link is associated with the Sartorius?
Reveal answer
Sartorius is used as a landmark for the femoral triangle, where the femoral artery can be palpated.
Common questions
Where is the Sartorius located?
The Sartorius is located in the anterior thigh. The Sartorius flexes, abducts, and externally rotates the hip, and flexes the knee.
What does the Sartorius do?
Longest muscle in the body, flexes hip and knee, externally rotates thigh. The Sartorius runs obliquely across the anterior thigh from the anterior superior iliac spine to the medial tibia.
What is a key fact about the Sartorius?
Sartorius is used as a landmark for the femoral triangle, where the femoral artery can be palpated.
What layer does the Sartorius belong to?
It belongs to the superficial muscles layer of the body.
What should I remember for exams?
The Sartorius flexes, abducts, and externally rotates the hip, and flexes the knee. The Sartorius runs obliquely across the anterior thigh from the anterior superior iliac spine to the medial tibia. Sartorius is used as a landmark for the femoral triangle, where the femoral artery can be palpated.
Sources
- Standring, S. (ed.). Gray’s Anatomy, 42nd edition. Elsevier, 2020.
- TeachMeAnatomy — anatomy library
- Kenhub — anatomy library
- StatPearls / NCBI Bookshelf — Sartorius search
3D atlas and image credits
Anatomy models: BodyParts3D, © Database Center for Life Science (DBCLS), CC BY-SA 2.1 Japan. Écorché by Charleeh, derived from BodyParts3D and Z-Anatomy, CC BY-SA 4.0. Rendered in anotemy. Changes: highlighting, framing, labels and background removal. Images: CC BY-SA 4.0.
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