navicular


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to navicular: Navicular fossa

na·vic·u·lar

(nă-vik'yū-lăr), [TA]
Flattened, medially placed tarsal bone, concave on its posterior surface to accommodate the head of the talus, and convex on its anterior surface to articulate with the three cuneiform bones.
[L. navicularis, relating to shipping]

navicular

/na·vic·u·lar/ (-ler) scaphoid.

navicular

(nə-vĭk′yə-lər)
n.
1. A comma-shaped bone of the human wrist, located in the first row of carpals.
2. A concave bone of the human foot, located between the talus and the metatarsals. In both senses also called scaphoid.
adj.
Shaped like a boat; scaphoid.

navicular

[navik′yələr]
boat-shaped; sunken.

navicular

adjective Referring or pertaining to the navicular bone.

noun The navicular bone itself.

scaph·oid

(skaf'oyd) [TA]
Boat-shaped; hollowed.
See also: scaphoid (bone)
Synonym(s): navicular.
[scapho- + G. eidos, resemblance]

navicular

The outermost of the wrist (CARPAL) bones on the thumb side in the nearest row. The bone is roughly boat-shaped, hence the name, which is derived from the Latin navis , a boat. Also known as SCAPHOID.

navicular

biconcave tarsal bone; articulates proximally with head of talus and distally with proximal facets of cuneiforms; forms the 'keystone' at height of medial longitudinal arch of foot

navicular

boat-shaped; applied to certain bones, such as the navicular bones of the horse's foot and human ankle.

navicular block
a specially carved block of wood in which a horse's foot is lodged to enable a radiograph of the navicular bone to be taken at a suitable angle.
navicular bone
1. the distal sesamoid bone of a horse's foot; it lies on the palmar side of the coffin joint and serves to change the direction of the deep digital flexor tendon as it inserts on the distal phalanx. Its palmar surface is covered with fibrocartilage, its dorsal surface with hyaline cartilage and its dorsal surface is pocked with a row of nutrient foramina.
2. (rare) the central tarsal bone.
navicular bursa inflammation
in the horse may contain Brucella abortus; a cause of intermittent lameness.
navicular disease
a chronic degeneration of the navicular bone in which there is damage to its flexor surface and the overlying flexor tendon in the front feet of horses. There may be an accompanying navicular bursitis and osteophyte formation. Characterized by intermittent lameness and pointing when the animal is standing. Called also podotrochlitis.
References in periodicals archive ?
For patients with tarsal navicular stress fractures, healing rates and return-to-activity times are similar, regardless of whether they are managed with non-weight-bearing cast immobilization or surgery, according to a meta-analysis.
Of the 3 patterns, the type II accessory navicular is most commonly associated with medial foot pain.
However, she and her colleagues' recent analyses of the fossilized navicular bones from several species of ancient horses of various sizes suggest that this crippling condition has afflicted the animals for millions of years.
As far as arch height, navicular height, and protrusion are concerned (Figure 4), the differences were small and insignificant among the four different joint angles.
The present results also confirmed the findings mentioned in two recent studies and reporting respectively a significant decrease of the navicular drop (Fourchet et al.
5-4 cm long (excluding the petals), apex subrounded and bearing a distinct apical coma of small sterile bracts; floral bracts navicular, thickly coriaceous and lignified, tricarinate, enfolding the ovary, light green near the base, dark green toward the apex, outside densely white-lepidote but trichomes not obscuring sepals color, inside glabrous, apex acute and aristate-spinescent, ca.
He removed the extra bone, repaired the tendon, and then reattached it with an anchor to the navicular bone.
Isolated rotatory subluxation of the carpal navicular.
Barclay (4) reported a case of a 34-year-old male jockey with navicular fracture and an incidental medial cuneiform.
Customers have claimed major improvements in arthritis, recovery from sprains and strains, ringbone, navicular and even laminitis.
A coalition is a bar or connection of bone or soft tissue between either the calcaneus and navicular or between the calcaneus and talus.