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Muscles Beginning With T
15 muscles in the reference begin with the letter T. Every name links to a page giving the muscle’s origin, insertion, main actions and nerve supply.
A B C D E F G H I L M N O P Q R S T V Z
| Muscle | Main actions | Nerve supply |
|---|---|---|
| Temporalis | Elevates the jaw; Retracts the jaw (posterior fibres) | Trigeminal nerve (CN V3), deep temporal branches |
| Tensor Fasciae Latae | Flexes the thigh; Moves the thigh away from the midline | Superior gluteal nerve (L4–L5) |
| Tensor of the Iliotibial Tract (Fascia Lata) | Braces the extended knee from the side | Superior gluteal nerve (via tensor fasciae latae, L4–L5) |
| Teres Major | Extends the arm; Adducts the arm | Lower subscapular nerve (C6–C7) |
| Teres Minor | Rotates the arm outward (lateral rotation); Stabilises the shoulder joint | Axillary nerve (C5–C6) |
| Thyrohyoid | Depresses the hyoid bone; Raises the larynx when the hyoid is fixed | C1 fibres carried by the hypoglossal nerve (CN XII) |
| Tibialis Anterior | Lifts the foot upward (dorsiflexion); Turns the sole inward (inversion) | Deep fibular nerve (L4–L5) |
| Tibialis Anterior Tendon (at the Ankle) | Dorsiflexes and inverts the foot — the first tendon in the 'Tom Hates Anita' order under the extensor retinaculum | Deep fibular nerve (L4–L5) |
| Tibialis Posterior | Points the foot downward (plantarflexion); Turns the sole inward (inversion) | Tibial nerve (L4–L5) |
| Transversus Abdominis | Compresses and supports the abdomen (the body's natural corset); Stabilises the trunk | Lower intercostal nerves and iliohypogastric/ilioinguinal nerves (L1) |
| Transversus Thoracis | Depresses the costal cartilages slightly in breathing out | Intercostal nerves |
| Trapezius | Elevates, retracts and depresses the shoulder blade; Rotates the scapula upward (with serratus anterior) | Accessory nerve (CN XI), with C3–C4 branches |
| Triceps Brachii | Straightens the elbow (extension); Long head also extends and adducts the arm | Radial nerve (C6–C8) |
| Triceps Brachii (Long Head) | Straightens the elbow; Extends and adducts the arm at the shoulder | Radial nerve (C6–C8) |
| Triceps Surae (Calf Group) | Points the foot downward for push-off in walking, running and jumping | Tibial nerve (S1–S2) |
Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.