a sloping mass of loose rocks at the base of a cliff
tegument
Noun
a natural protective body covering and site of the sense of touch
triquetral
Noun
a wrist bone that articulates with the pisiform and hamate and lunate bones
triquetral bone
Noun
a wrist bone that articulates with the pisiform and hamate and lunate bones
trapezium
Noun
the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals
trapezium
Noun
a quadrilateral with no parallel sides
trapezium bone
Noun
the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals
trapezoid
Noun
the wrist bone between the trapezium and the capitate bones
trapezoid
Noun
a quadrilateral with two parallel sides
trapezoid bone
Noun
the wrist bone between the trapezium and the capitate bones
tentorial sinus
Noun
an unpaired sinus of the dura mater
transverse sinus
Noun
a paired dural sinus
trabecula
Noun
rod-shaped structures of fibrous tissue that divide an organ into parts (as in the penis) or stabilize the structure of an organ (as in the spleen)
turbinate bone
Noun
any of the scrolled spongy bones of the nasal passages in man and other vertebrates
turbinal
Noun
any of the scrolled spongy bones of the nasal passages in man and other vertebrates
tympanic bone
Noun
the bone enclosing the middle ear
tendon
Noun
a cord or band of inelastic tissue connecting a muscle with its bony attachment
tooth socket
Noun
a bony socket in the alveolar ridge that holds a tooth
tooth root
Noun
the part of a tooth that is embedded in the jaw and serves as support
tooth enamel
Noun
hard white substance covering the crown of a tooth
temporomandibular joint
Noun
the joint between the head of the lower jawbone and the temporal bone
third eye
Noun
a sensory structure capable of light reception located on the dorsal side of the diencephalon in various reptiles
tonsil
Noun
either of two masses of lymphatic tissue one on each side of the oral pharynx
tonsilla
Noun
either of two masses of lymphatic tissue one on each side of the oral pharynx
thermoreceptor
Noun
a sensory receptor that responds to heat and cold
tastebud
Noun
an oval sensory end organ on the surface of the tongue
taste bud
Noun
an oval sensory end organ on the surface of the tongue
tarsal bone
Noun
any bone of the tarsus
temporal bone
Noun
a thick bone forming the side of the human cranium and encasing the inner ear
taste cell
Noun
an epithelial cell in a taste bud that activates sensory fibers of the facial nerve or the glossopharyngeal nerve or the vagus nerve
tail bone
Noun
the end of the vertebral column in humans and tailless apes
teeth
Noun
the kind and number and arrangement of teeth (collectively) in a person or animal
third eyelid
Noun
a protective fold of skin in the eyes of reptiles and birds and some mammals
tragus
Noun
a small cartilaginous flap in front of the external opening of the ear
tunica conjunctiva bulbi
Noun
the part of the conjunctiva covering the anterior face of the sclera and the surface epithelium of the cornea
tunica conjunctiva palpebrarum
Noun
the part of the conjunctiva lining the posterior surface of the eyelids
tympanic cavity
Noun
the main cavity of the ear
thoracic aorta
Noun
a branch of the descending aorta
tarsal gland
Noun
a long sebaceous gland that lubricates the eyelids
tympanic membrane
Noun
the membrane in the ear that vibrates to sound
truncus celiacus
Noun
an artery that originates from the abdominal aorta just below the diaphragm and branches into the left gastric artery and the common hepatic artery and the splenic artery
thyroid gland
Noun
located near the base of the neck
tear gland
Noun
any of the glands in the eyes that secrete tears
tear duct
Noun
any of several small ducts that carry tears from the lacrimal glands
tear sac
Noun
either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands
thymus gland
Noun
a ductless glandular organ at the base of the neck that produces lymphocytes and aids in producing immunity
thymus
Noun
a ductless glandular organ at the base of the neck that produces lymphocytes and aids in producing immunity
temporal canthus
Noun
the outer corner of the eye
truncus pulmonalis
Noun
the artery that carries venous blood from the right ventricle of the heart and divides into the right and left pulmonary arteries
temporal artery
Noun
any of the three arteries on either side of the brain supplying the cortex of the temporal lobe