Anatomy Course Begins in a venous plexus on the side of the scalp. It travels through the connective tissue layer of the scalp, to just above the parotid gland, where it unites with the maxillary vein to form the retromandibular vein. Drain Drains the superficial temporal aspect of the scalp. Interested in taking our award-winning

Anatomy Paired structure that forms a superficial elevation on the dorsal side of the rostral midbrain. It is located within the tectum of the midbrain. The superior and inferior colliculi are collectively known as the corpora quadrigemina. Blood Supply: Supplied by branches of the posterior cerebral arteries. Functions Tectospinal fibers arise from the superior colliculus.

Anatomy Origin: Dorsal surface of the ischial spine. Insertion: Blends with the more superior fibres of the tendon of the obturator internus and attaches with the tendon to the medial border of the greater trochanter of the femur. Key Relations: Lies superior to the obturator internus muscle. Functions Working with gemellus inferior and obturator internus,

Anatomy Course A terminal branch of the posterior trunk of the internal iliac artery. It travels posteriorly, passing through the space between the lumbosacral trunk and the anterior ramus of spinal nerve S1. It exits the pelvic cavity by passing through the greater sciatic foramen. On leaving the greater sciatic foramen it divides into a

Anatomy Course A terminal nerve of the lumbosacral plexus. It is formed by fibres from spinal segments L4 – S1. It exits the pelvic cavity by passing through the greater sciatic foramen, above the piriformis muscle. It travels anterolaterally between gluteus medius and minimus, and terminates in the tensor fasciae latae muscle. Supply The superior

Anatomy Course Begins in the gluteal region, where a number of smaller veins come together. It travels towards the greater sciatic foramen, where it enters the pelvic cavity. It travels along the posterior pelvic wall to drain into the internal iliac vein. Drain Drains the gluteal region. Interested in taking our award-winning Pocket Anatomy app

Anatomy The subdeltoid bursa lies between the tendon of subscapularis and the fibrous membrane of the glenohumeral joint capsule. Functions The subdeltoid bursa reduces friction between the glenohumeral joint and the tendon of the subscapularis muscle. Clinical Bursitis is swelling of the bursa from infection or overuse. Interested in taking our award-winning Pocket Anatomy app

Anatomy Origin: Medial two thirds of the costal surface of the scapula. Insertion: Lesser tubercle of humerus and anterior of capsule of shoulder joint. Key Relations: -Forms much of the posterior axillary wall. -One of the four muscles of the rotator cuff muscle group. Functions -Medially rotates the arm at the glenohumeral joint. -Adducts the

Anatomy Course Branches off from the radial nerve just beyond the lateral epicondyle of the humerus, beneath the brachioradialis muscle. From there it continues to course distally beneath the brachioradialis. Just proximal to the wrist, it emerges from underneath the tendon of the brachioradialis muscle, between it and the tendon of the extensor carpi radialis

Anatomy Course A terminal branch of the ulnar nerve. Supply Supplies the skin on the medial aspect of the palm with sensory innervation. Clinical Damage may result in pain, a tingling sensation or numbness in its region of distribution. Interested in taking our award-winning Pocket Anatomy app for a test drive?