What does the supratrochlear artery supply?

The supratrochlear artery is typically the larger terminal branch of the ophthalmic artery. It pierces the orbital septum superior to the trochlea with the supratrochlear nerve and ascends the superior orbital margin to supply the skin, muscles, and scalp near the midline.

What does the supratrochlear artery do?

The supratrochlear artery supplies the upper eyelid, periosteum, as well as the muscles of the forehead and adjacent skin.

What does the supratrochlear artery and vein do?

Function. The supratrochlear artery supplies blood to the skin of the medial aspect of the forehead and scalp, as well as the underlying pericranium and frontalis muscle.

Which artery is also known as supratrochlear artery?

The supratrochlear artery (STA) is a terminal branch of the ophthalmic artery (OA) which in turn is the first intracranial branch of the internal carotid artery (ICA) [1]. After exiting the orbit, the vessel travels vertically, ascending to the forehead, approximately 2 cm from the midline [2].

How deep is the supratrochlear artery?

The mean depth of the supratrochlear artery was 3.34 [0.6] mm at rest, whereas the depth of the supraorbital artery was 3.54 [0.8] mm.

Where does supratrochlear nerve come from?

The supratrochlear nerve is a branch of the frontal nerve, itself a branch of the ophthalmic nerve (CN V1) from the trigeminal nerve (CN V). It provides sensory innervation to the skin of the forehead and the upper eyelid.

What does supratrochlear mean?

supratrochlear nerve noun. : a branch of the frontal nerve supplying the skin of the forehead and the upper eyelid.

Where is the supratrochlear nerve?

The supratrochlear nerve runs along the medial roof of the orbit, going between the trochlea and the supraorbital foramen to exit into the deep tissues of the forehead out of the frontal notch.

What is the supratrochlear nerve?

The supratrochlear nerve (STN) is a branch of the frontal nerve and supplies sensory innervations to the bridge of the nose, medial part of the upper eyelid, and medial forehead.

How deep is the supratrochlear nerve?

Supraorbital nerve superficial branches entered the subfrontalis plane at a mean distance of 1.29 ± 0.20 (range, 1.0-1.8) cm above the orbital rim with an average depth of 0.45 ± 0.13 (range, 0.3-0.8) cm.

What skin is affected by the supraorbital nerve?

Supraorbital nerve
From	frontal nerve
Innervates	skin of forehead and upper eyelid, conjunctiva of upper eyelid, frontal sinus
Identifiers
Latin	Nervus supraorbitalis

What does supratrochlear nerve pass?

The supratrochlear nerve passes anteriorly and medially passing superior to the trochlea of the superior oblique. It gives off a small filament which descends to join with the infratrochlear branch of the nasociliary nerve.

Where does supratrochlear nerve exit the skull?

Anatomy. The supraorbital and supratrochlear nerves supply sensation to the forehead and anterior scalp and exit from foramina located along the supraorbital ridge.