Anatomy study note · Lower limb

Gracilis

A long, thin muscle on the medial side of the thigh, the only adductor that crosses the knee.

Key points

• Inferior pubic ramus → upper medial tibia.
• Obturator nerve.
• Adduction + knee flexion.
• Limb muscles: in situ from limb-bud mesenchyme.
• Upper limb bud C4–T2; lower limb bud L2–S2.
• Skeletal muscle: multinucleated, peripheral nuclei, striated.
• Epimysium → perimysium → endomysium.

The full note in the atlas also covers

Origin · Insertion · Action · Nerve supply · Histology · Development

Sign in free to see it on the 3D model, read the full note and practise questions on it.

Written from

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 11, PDF pp. 1320–1321
• Inderbir Singh’s Human Embryology, ch. 7, PDF p. 109; ch. 10, PDF pp. 142–145
• BRS Cell Biology & Histology, 7th ed., ch. 8, PDF pp. 135–144

More from the lower limb

• Great saphenous vein
• Hip joint
• Inguinal lymph nodes
• Interossei of the foot
• Joints of the forefoot and toes
• Knee joint
• Menisci of the knee
• Metatarsal bones
• Patella
• Pectineus
• Phalanges of the foot
• Plantar aponeurosis

Privacy policy · Designed by DATXOC LLC.