a small wrist bone that articulates only with the triquetral
pisiform bone
Noun
a small wrist bone that articulates only with the triquetral
prickle cell
Noun
a cell in the germinal layer of the skin (the prickle-cell layer)
pubic hair
Noun
hair growing in the pubic area
paranasal sinus
Noun
any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with the lining of the nasal cavities
pulp cavity
Noun
the central cavity of a tooth containing the pulp (including the root canal)
permanent tooth
Noun
any of the 32 teeth that replace the deciduous teeth of early childhood and (with luck) can last until old age
perineurium
Noun
the sheath of connective tissue that covers a bundle of nerve fibers
primary tooth
Noun
one of the first temporary teeth of a young mammal (one of 20 in children)
perimysium
Noun
the sheath of connective tissue that covers a bundle of muscle fibers
premolar
Noun
a tooth having two cusps or points
primordium
Noun
an organ in its earliest stage of development
palatine raphe
Noun
the seam at the middle of the hard palate
pulp
Noun
the soft inner part of a tooth
pulp
Noun
an inexpensive magazine printed on poor quality paper
pulp
Noun
any soft or soggy mass
pulp
Noun
a soft moist part of a fruit
pulp
Noun
a mixture of cellulose fibers
pulp
Verb
reduce to pulp
pulp
Verb
remove the pulp from, as from a fruit
pineal eye
Noun
a sensory structure capable of light reception located on the dorsal side of the diencephalon in various reptiles
palatine tonsil
Noun
either of two masses of lymphatic tissue one on each side of the oral pharynx
palatine bone
Noun
either of two irregularly shaped bones that form the back of the hard palate and helps to form the nasal cavity and the floor of the orbits
patella
Noun
a small flat triangular bone in front of the knee that protects the knee joint
phalanx
Noun
any of the bones of the fingers or toes
phalanx
Noun
a body of troops in close array
phalanx
Noun
any closely ranked crowd of people
pubis
Noun
one of the three sections of the hipbone
pubic bone
Noun
one of the three sections of the hipbone
punctum
Noun
(anatomy) a point or small area
pronator
Noun
a muscle that produces or assists in pronation
primary dentition
Noun
dentition of deciduous teeth
platysma
Noun
either of two broad muscles located on either side of the neck and innervated by the facial nerve
pinna
Noun
the externally visible cartilaginous structure of the external ear
pinna
Noun
division of a usually pinnately divided leaf
palpebra conjunctiva
Noun
the part of the conjunctiva lining the posterior surface of the eyelids
perforated eardrum
Noun
an eardrum with a hole or tear in it
pinguecula
Noun
a slightly elevated elastic tissue deposit in the conjunctiva that may extend to the cornea but does not cover it
pterygium
Noun
either of two thickened triangular layers of conjunctiva extending from the nasal edge of the eye to the cornea
periosteum
Noun
a dense fibrous membrane covering the surface of bones (except at their extremities) and serving as an attachment for tendons and muscles
perithelium
Noun
tissue layer around small blood vessels
palate
Noun
the upper surface of the mouth that separates the oral and nasal cavities
pupil
Noun
the contractile aperture in the center of the iris of the eye
pupil
Noun
a young person attending school (up through senior high school)
pupil
Noun
a learner who is enrolled in an educational institution
parathyroid gland
Noun
any one of four endocrine glands situated above or within the thyroid gland
parathyroid
Noun
any one of four endocrine glands situated above or within the thyroid gland
posterior cerebral artery
Noun
arises from the basilar artery
prostate gland
Noun
a firm partly muscular chestnut sized gland in males at the neck of the urethra
plasma membrane
Noun
a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell