lesser alar cartilages

The two to four cartilaginous plates of the wing of the nose posterior to the greater alar cartilage.

Synonym: cartilagines alares minores, accessory quadrate cartilage.


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lesser arterial circle of iris

An arterial circle near the pupillary margin of the iris.

Synonym: circulus arteriosus iridis minor.


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lesser circulation

pulmonary circulation


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lesser cul-de-sac

pyloric antrum


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lesser curvature of stomach

The right border of the stomach to which the lesser omentum is attached.

Synonym: curvatura ventriculi minor.


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lesser horn of hyoid bone

The shorter and more medial of the two processes on either side of the hyoid bone.

Synonym: cornu minus ossis hyoidei, styloid cornu.


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Next: lesser internal cutaneous nerve, lesser multangular bone


lesser internal cutaneous nerve

medial brachial cutaneous nerve


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lesser multangular bone

trapezoid bone


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lesser occipital nerve

<anatomy, nerve> Arises from the ventral primary rami of the second and third cervical nerves; supplies the skin of the posterior surface of the auricle and the adjacent portion of the scalp. Posterior to the auricle.

Synonym: nervus occipitalis minor.


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lesser palatine artery

<anatomy, artery> One of several posterior branches of the descending palatine in the greater palatine canal, distributed to the soft palate and tonsil.

Synonym: arteria palatina minor.


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lesser palatine foramina

Openings on the hard palate of palatine canals passing vertically through the tuberosity of the palatine bone and transmitting the smaller palatine nerves and vessels.

Synonym: foramina palatina minora, posterior palatine foramina.


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lesser palatine nerves

Usually two, these nerves emerge through the lesser palatine foramina and supply the mucosa and glands of the soft palate and uvula; they are branches of the pterygopalatine ganglion and contain postsynaptic parasympathetic and sensory fibres of the maxillary nerve.

Synonym: nervi palatini minores.


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lesser pancreas

uncinate process of pancreas


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lesser pelvis

The cavity of the pelvis below the brim or superior aperture.

Synonym: pelvis minor, pelvis vera, small pelvis, true pelvis.


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Next: lesser peritoneal cavity, lesser peritoneal sac, lesser petrosal nerve


lesser peritoneal cavity

omental bursa


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lesser peritoneal sac

omental bursa


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lesser petrosal nerve

lesser superficial petrosal nerve


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lesser rhomboid muscle

rhomboid minor


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lesser ring of iris

The narrow inner zone of the iris.

Synonym: annulus iridis minor.


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lesser sciatic notch

The notch in the posterior border of the ischium below the ischial spine.

Synonym: incisura ischiadica minor.


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Next: lesser splanchnic nerve, Lesser's triangle


lesser splanchnic nerve

<anatomy, nerve> One of the abdominopelvic splanchnic nerves arising in the thorax from the last two thoracic sympathetic ganglia and passing through the diaphragm to the aorticorenal ganglion; conveys presynaptic sympathetic fibres and visceral afferent fibres.

Synonym: nervus splanchnicus minor.


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Lesser's triangle

The space between the bellies of the digastric muscle and the hypoglossal nerve.


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Next: lesser superficial petrosal nerve, lesser supraclavicular fossa


lesser superficial petrosal nerve

<anatomy, nerve> The parasympathetic root of the otic ganglion, derived from the tympanic plexus; it leaves the tympanic cavity through the canal for the lesser petrosal nerve and passes within the cranium to the sphenopetrosal fissure, or to the foramen ovale, or to the petrosal foramen through which it descends to reach the otic ganglion; conveys presynaptic parasympathetic fibres from the glossopharyngeal nerve concerned with secretomotor innervation of the perotid gland.

Synonym: nervus petrosus minor, lesser petrosal nerve.


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lesser supraclavicular fossa

A triangular space between the two heads of origin of the sternocleidomastoid muscle.

Synonym: fossa supraclavicularis minor.


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lesser trochanter

A pyramidal process projecting from the medial and proximal part of the shaft of the femur at the line of junction of the shaft and the neck; it receives the insertion of the psoas major and iliacus (iliopsoas) muscles.

Synonym: trochanter minor, small trochanter, trochantin.


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lesser tubercle of humerus

The anterior of the two tubercles of the neck of the humerus on which the subscapularis is inserted.

Synonym: tuberculum minus humeri, lesser tuberosity of humerus.


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lesser tuberosity of humerus

lesser tubercle of humerus


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lesser tympanic spine

The posterior edge of the tympanic notch (of Rivinus).

Synonym: spina tympanica minor.


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lesser vestibular glands

A number of minute mucous glands opening on the surface of the vestibule between the orifices of the vagina and urethra.

Synonym: glandulae vestibulares minores.


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Next: lesser wing of sphenoid bone, lesser zygomatic muscle, Lesshaft, Pjotr


lesser wing of sphenoid bone

One of a bilateral pair of triangular, pointed plates extending laterally from the anterolateral body of the sphenoid bone. Forming the posteriormost portion of the floor of the anterior cranial fossa, their sharp posterior edge forms the sphenoidal ridge separating anterior and middle cranial fossae. The medial end of the lesser wing attaches to the body by means of two pedicles, thus forming the optic canal. The wing itself forms the superior margin of the supraorbital fissure.

Synonym: ala minor ossis sphenoidalis, ala orbitalis, Ingrassia's apophysis, Ingrassia's wing.


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lesser zygomatic muscle

zygomaticus minor


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Lesshaft, Pjotr

<person> Russian physician, 1836-1909.

See: Lesshaft's triangle.


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Lesshaft's triangle

grynfeltt's triangle


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Next: let-down reflex, lethal, lethal coefficient, lethal dose

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