Anatomy The tonsils most commonly referred to, visible either side of the Oropharynx at the back of the tongue. Surface folded on itself, forming 15 or so crypts. Clinical Normal Palatine Tonsils vary considerably in size. Can swell significantly when inflamed/infected, though rarely to the point of blocking the Oropharynx. Tonsillectomy was once very common

Anatomy Small fibrous bands connecting from the distal row of carpal bones to the proximal end of the metacarpal bones. Functions Provide static stability to the carpometacarpal joint. Interested in taking our award-winning Pocket Anatomy app for a test drive?

Anatomy Course Branches from the superficial palmar arch, just after the deep palmar artery branches from it. It travels medially towards the little finger and runs along the medial side to the tip. The blood it carries is mainly from the ulnar artery. Supply Supplies the medial aspect of the little finger with blood. Interested

Anatomy Origin: Occipitalis has no bony origin. Its fibres are continuous with those of the muscles procerus and corrgator supercilii. Insertion: Fibres join the galea aponeurotica (epicranial aponeurosis) below the coronal suture. Key Relations: Many consider frontalis and occipitalis as one muscle (called occipitofrontalis) with an aponeurotic tendon between two bellies- a frontal belly and

Anatomy Origin: Arises from olfactory receptors in the epithelium of the nasal cavity. Course: The olfactory receptor axons enter the cranial cavity through the foramina of the cribriform plate of the ethmoid bone. They synapse in the olfactory bulb located on the inferior surface of the frontal lobe. Information is carried from the olfactory bulb

Anatomy Course: The superior and inferior ophthalmic veins begin on their respective sides of the eye. They drain backwards towards the cranial cavity, merging to form a single vessel that empties into the cavernous sinus. Supply Drains the orbit of the eye and its structures. Interested in taking our award-winning Pocket Anatomy app for a

Anatomy Course: The superior and inferior ophthalmic veins begin on their respective sides of the eye. They drain backwards towards the cranial cavity, merging to form a single vessel that empties into the cavernous sinus. Supply Drains the orbit of the eye and its structures. Interested in taking our award-winning Pocket Anatomy app for a

Anatomy Origin: Hook of the hamate and the flexor retinaculum. Insertion: Ulnar aspect of the fifth metacarpal. Key Relations: Is one of the muscles of the hypothenar eminence of the hand. Functions Flexion and lateral rotation (i.e.opposition) of the fifth metacarpal at the carpometacarpal and metacarpophalangeal joint. Supply Nerve Supply: Deep branch of the ulnar

Anatomy Origin: Tubercle of trapezium and flexor retinaculum. Insertion: Radial border and adjacent palmar surface of the first metacarpal (thumb). Key Relations: Is one of the muscles of the thenar eminence of the hand. Functions Flexion, abduction, and medial rotation (i.e. the action of opposition) of the metacarpal of the thumb at the carpopmetacarpal and

Anatomy The two optic nerves unite at the optic chiasm which is located at the base of the brain in the interpeduncular cistern. It is situated between the two internal carotid arteries, and the tuber cinereum of the hypothalamus lies posterior to the chiasm. Blood Supply: Supplied by the branches of many vessels, particularly the