The distal portions form the muscles of the tentacles.
Bleeding from a vein is of a darker colour; the flow is steady, and the bleeding is from the distal end of the vessel.
The longitudinal system is discontinuous, and is subdivided into proximal, medial and distal portions.
It is almost certain that the distal of these two segments really belongs to the thigh, but the ordinary nomenclature will be used in the present article, as this character is of great importance in discriminating families, and the two segments in question are referred to the trochanter by most systematic writers.
The maxillaries are connected with the distal anterior corner of the quadrate by the thin, splint-like jugal and quadratojugal.
It is homologous with the distal ends of the ceratohyals or ventral elements of the hyoidean or second visceral arch.
In birds of various groups the clavicles are more or less degenerated, the reduction beginning at the distal end.
Its proximal end forms a shallow cup for articulation with the outer condyle of the humerus; the distal end bears a knob which fits into the radial carpal.
This and the third are much longer and fuse together at their upper and distal ends, leaving as a rule a space between the shafts.
Typically there are two pairs - a proximal, more or less approximated on the postero-dorsal surface, and a distal pair, more widely separate.
But the proximal pair are often fused into a single median antenna (supplied, however, by two nerves), and in one case at least the distal pair may be similarly fused.
The clavicles, when united, as usual, form the furcula; mostly the distal median portion is drawn out into a hypocleidium of various shape.
The distal end of the humerus ends in a trochlea, with a larger knob for the ulna and a smaller oval knob for the radius.
Of wrist-bones only two remain in the adult bird; the original distal carpals coalesce with the proximal end of the metacarpals.
Only in the ostrich the distal ends of the pubes meet, forming a daggershaped symphysis, which is curved forwards.
The distal half of the fibula is very slender and normally does not reach the ankle-joint; it is attached to the peroneal ridge of the tibia.
The condyles of the tibia are in reality not parts of this bone, but are the three proximal tarsalia which fuse together and with the distal end of the tibia.
Here, alone, at the distal portion of the tendon, occur muscular fibres, but these are unstriped, belonging to the category of cutaneous muscles.
One of these, broad and fleshy, is inserted upon the posterior surface of the distal third of the femur.
The keel is pushed back to the distal third of the sternum, whilst the original anterior margin of the keel is correspondingly elongated,and the furcula fused with the rostral portion.
It is protruded and retracted by special muscles which are partly attached to the ventral, distal end of the ilium.
Serrula on movable digit of appendages of 1st pair fixed throughout its length, and broader at its proximal than at its distal end; the immovable digit with an external process.
Intromittent organ of male placed at the distal end of the appendage of the 5th pair.
When a nerve-trunk is separated from its central connexion, the distal portion falls into a state of fatty degeneration (Wallerian or secondary degeneration).
The replacement of detached mature proglottides at the distal end of the Cestode-body by others is not regeneration, for the replacing set has already developed, and in certain cases they can complete their development quite independently after being detached from the parent.
Cavity of the zooecium subdivided by transverse diaphragms, most numerous in the distal portion.
The species may be further distinguished by the former having the proximal third of the tail-quills pure white, and the distal two-thirds black, with a narrow white margin, while the latter has the same feathers barred with black and white alternately for nearly their whole length.
The largest is placed ventrally at some distance distal to the mouth.
There are also two pairs of distal antennae.
In Asplanchnaceae the germary is median, continuous at the distal end with the middle of the transverse horseshoe-shaped vitellary.
But the generative products do not pass through the whole length of the renal tube: there is a direct opening from the pericardial end of the tube to the distal end, and the ova or sperms pass through this.
Usually each tube is provided with caecal appendages on its proximal portion, and these serve as vesiculae seminales, while the distal portion is enlarged and glandular and secretes the egg-shell.
A little later the breaking down of the whole axon, both axis cylinder and myelin sheath alike, seems to occur simultaneously throughout its entire length distal to the place of severance.
The two distal endites are regarded as corresponding to the endopodite and exopodite of the higher Crustacea, the axis or corm of the Phyllopod limb representing the protopodite.