The giraffe's head and neck are held up by large muscles and a nuchal ligament, which are anchored by long dorsal spines on the anterior thoracic vertebrae, giving the animal a hump.

The more anterior dorsal fin is much harder and appears to have spines on them.

The anterior dorsal fin is reduced to a set of three spines.

As a protection against predators, triggerfish can erect the first two dorsal spines: The first, ( anterior ) spine is locked in place by erection of the short second spine, and can be unlocked only by depressing the second, “ trigger ” spine, hence the family name “ triggerfish ”.

The dorsal and pectoral fins have strong spines, and there is a spine at the anterior border of the adipose fin.

Their two dorsal fins are widely separated with the anterior fin having five spines, the posterior fin having one spine and nine soft rays.

Lophius has three long filaments sprouting from the middle of the head ; these are the detached and modified three first spines of the anterior dorsal fin.

The fish also has eighty long filaments along the middle of its head, which are, in fact, the detached and modified three first spines of the anterior dorsal fin.

The posterior portion of the nematode is smooth while the anterior half is covered with fine leaf-like spines.

The spiny anterior fin has 13 to 15 spines.

Two ships of the United States Navy have borne the name USS Trigger, named in honor of the triggerfish, any of numerous deep-bodied fishes of warm seas having an anterior dorsal fin with two or three stout erectile spines.

While these common names may apply to several species, Squalus acanthias is distinguished by having two spines ( one anterior to each dorsal fin ) and lacks an anal fin.

In most species, the hind pair on either side of the cephalon become spines that point sharply backwards, and the spinose tips of the anterior pairs of thoracic segments tend to become more and more forward directed toward the pygidium.

Species of Lophius have three long filaments sprouting from the middle of its head ; these are the detached and modified three first spines of the anterior dorsal fin.

In the subfamily Notiphilinae the head is reduced to a cephalic skeleton, there are no anterior spiracles and the posterior spiracles are extended as spines.

** Transverse plane which transverses the anterior superior iliac spines.

The abalone shell has a series of holes near the anterior margin, that are respiratory apertures for the venting of water from the gills and for releasing sperm and eggs into the water column at the appropriate time.

Entamoeba cells are small, with a single nucleus and typically a single lobose pseudopod taking the form of a clear anterior bulge.

In most things, one or more flagella are located at or near the anterior of the cell e. g. Euglena.

Labiolingually, their mandibles are much stronger at the canine teeth than in canids, reflecting the fact that hyenas crack bones with both their anterior dentition and premolars, unlike canids, which do so with their post-carnassial molars.

The labia majora are thicker in front, where they form by their meeting the anterior commisure of the labia majora.

** Golgi I: neurons with long-projecting axonal processes ; examples are pyramidal cells, Purkinje cells, and anterior horn cells.

Impulses are then transmitted to nerve fibers that terminate in lamina V, also in the dorsal horn, synapsing with neurons that join fibers from the fast pathway, crossing to the opposite side via the anterior white commissure, and traveling upwards through the anterolateral pathway.

The dorsal and anal fins are divided into anterior spiny and posterior soft-rayed portions, which may be partially or completely separated.

Note that some muscles are not usually involved in these synergy patterns and include the lattisimus dorsi, teres major, serratus anterior, finger extensors, and ankle evertors.

Another comparison of scans anterior forebrain regions are disproportionately active in stuttering subjects, while post-rolandic regions are relatively inactive.

The three main conditions to be considered in the differential diagnosis are: acute spinal cord trauma, acute compressive lesions of the spinal cord such as epidural metastatic tumour, and infarction of the spinal cord, usually due to insufficiency of the anterior spinal artery.

Maculae flavae are located at the anterior and posterior ends of the membranous parts of the VF.

The paleopulmonic parabronchi are found in all birds and air flows through them in the same directionposterior to anterior during inhalation and exhalation.

Primary ( true ) brain tumors are commonly located in the posterior cranial fossa in children and in the anterior two-thirds of the cerebral hemispheres in adults, although they can affect any part of the brain.

Aminoptidase activity is also luminal in the posterior midgut, but cellular aminopeptidases are required for peptide processing in both anterior and posterior midguts.

Many of these anatomical landmarks are used to define the extent of the leg: most notably the anterior superior iliac spine, the greater trochanter, the superior margin of the medial condyle of tibia, and the medial malleolus.

The PTr and POp are defined by structural landmarks that only probabilistically divide the inferior frontal gyrus into anterior and posterior cytoarchitectonic areas of 45 and 44, respectively, by Brodmann's classification scheme.

Two organs, likely functioning as a unit for chemoreception are located near the anterior margin of the cerebral ganglion: the non-ciliated cerebral organ, which possesses bipolar sensory cells, and the nuchal organ, located posterior to the cerebral organ.

Priapulids are cylindrical worm-like animals, ranging from in length, with a median anterior mouth quite devoid of any armature or tentacles.

In the UK between the late 1990s and 2010 there were just two centres using psychosurgery: a few stereotactic anterior capsulotomies are performed every year at the University Hospital of Wales, Cardiff, while anterior cingulotomies are carried out by the Advanced Interventions Service at Ninewells Hospital, Dundee.

They may then adjust their positions and movements to avoid too much pressure on the urethra and the anterior wall of the vagina ; ;

A few tracts pass through the much smaller anterior and posterior commissures.

* The much larger, diamond-shaped anterior fontanelle where the two frontal and two parietal bones join generally remains open until the child is about two years of age, however, in cleidocranial dysostosis it is often late in closing or may never close.

The shipworms of the family Teredinidae have greatly elongated bodies, but the shell valves are much reduced and restricted to the anterior end of the body, where they function as scraping organs that permit the animal to dig tunnels through wood.

This latter claim has however been a source of much controversy ( see Bodhidharma, the martial arts, and the disputed India connection ) One more feature about the Chinese Buddhist monks is that they practice the burning marks on their scalp, finger or part of the skin on their anterior side of the forearm with incense as a sign of ordination.

Barkudia insularis has the snout depressed, obtusely pointed, projecting strongly beyond the labial margin ; rostral large, emarginate laterally to receive the nasal shield ; supranasals large, in contact with one another and with the first labial ; fronto-nasal broader than long, larger than the frontal ; interparietal much larger than the frontal ; parietals narrow, obliquely placed, in contact with one another behind it ; 3 supraoculars, the first entering the supraciliarly margin, the first two in contact with the frontal ; 1 large supraciliary in the angle formed by the 3 suboculars ; nasal shield comparatively large, the nostril at its anterior extremeity ; 1 large loreal ; a preocular ; lower eyelid composed of 2 or 3 opaque scales ; upper eyelid vestigial ; 4 supralabials, the third below the eye ; ear-opening minute ; a singly azygous postmenta ; body elongate with 140 ventral scales between the post-mental and pre-anal plates ; 20 smooth scales round the mid body.

It is the posterior end that is exposed to extreme temperatures ; the anterior end stays at a much more comfortable 22 ° C ( 72 ° F ).

There are also two much smaller connections, the anterior commissure and hippocampal commissure, as well as many subcortical connections that cross the midline.

His anterior abdominal wall and much of his chest had been hacked at, possibly by an axe.

The anterior ligament is not much of a ligament at all and in most cases is just a slight thickening of the anterior joint capsule.

Prionailurus skulls are lower and less vaulted than Felis, the facial portion is shorter than the cranial, the floor of the orbit is longer, the nasal bones are not everted above the anterior nares, the outer chamber of the bulla is much smaller than the inner.

While these first four reflections are not entoptic, Becker described how light can reflect from the posterior surface of the lens and then again from the anterior surface of the cornea to focus a second image on the retina, this one much fainter and inverted.

Tscherning referred to this as the sixth image ( the fifth image being formed by reflections from the anterior surfaces of the lens and cornea to form an image too far in front of the retina to be visible ) and noted it was much fainter and best seen with a relaxed emmetropic eye.

Despite the term posterior this pathophysiology may be applied to cases where the ischemic damage is anterior, as the condition describes a particular mechanism of visual loss as much as the location of damage in the optic nerve.

Externally, rostroconchs look much like bivalves and rostroconchs probably had an extendable muscular foot, indicated by a prominent anterior gape in the rostroconch's shell.

The large posterior section of the room is lined with several tall statues of elders along each side whereas the much thinner, less tall, anterior section of the room is an open hallway lined with columns along each side.

He was first selected by the Cleveland Cavaliers as the 13th overall pick to the 1997 NBA Draft, despite missing much of his second senior season at Kentucky due to a torn anterior cruciate ligament ( ACL ).