any of several cytologic smears obtained from different parts of the lower respiratory tract
beta cell
Noun
a cell that produces insulin in the isles of Langerhans in the pancreas
body covering
Noun
any covering for the body or a body part
bare bone
Noun
bone stripped of flesh
brush cut
Noun
a short haircut with hairs standing up like a brush
burnside
Noun
facial hair that has grown down the side of the face in front of the ears, especially when the rest of the beard is shaved off
body substance
Noun
the substance of the body
bacterial plaque
Noun
a film of mucus and bacteria deposited on the teeth that encourages the development of dental caries
bucktooth
Noun
a large projecting front tooth
back tooth
Noun
a tooth situated at the back of the mouth
baby tooth
Noun
one of the first temporary teeth of a young mammal (one of 20 in children)
bone marrow
Noun
the fatty network of connective tissue that fills the cavities of bones
bone marrow
Noun
very tender and very nutritious tissue from marrowbones
basilar membrane
Noun
a membrane in the cochlea that supports the organ of Corti
bonelet
Noun
a small bone
baroreceptor
Noun
a sensory receptor that responds to pressure
buccal cavity
Noun
the cavity between the jaws and the cheeks
bodily cavity
Noun
(anatomy) a natural hollow or sinus within the body
breastbone
Noun
the flat bone that articulates with the clavicles and the first seven pairs of ribs
buccinator muscle
Noun
a muscle that flattens the cheek and retracts the angle of the mouth
bulbar conjunctiva
Noun
the part of the conjunctiva covering the anterior face of the sclera and the surface epithelium of the cornea
basilar artery
Noun
an unpaired artery
brachial artery
Noun
the main artery of the upper arm
bronchial artery
Noun
arteries that accompany the bronchioles
buccal artery
Noun
a branch of the maxillary artery that supplies blood to the buccinator muscle and the cheek
bony labyrinth
Noun
cavity in the petrous part of the temporal bone that contains the membranous labyrinth
brow
Noun
the arch of hair above each eye
brow
Noun
the part of the face above the eyes
brow
Noun
the peak of a hill
bronchial vein
Noun
veins serving the bronchi
basal vein
Noun
a large vein passing along the medial surface of the temporal lobe and emptying into the great cerebral vein
basilic vein
Noun
a vein that drains the back of the hand and forearm and empties into the axillary vein
basivertebral vein
Noun
one of a number of veins draining the spongy substance of the vertebrae and emptying into the anterior internal vertebral venous plexus
brachial vein
Noun
two veins in either arm that accompany the brachial artery and empty into the axillary vein
brachiocephalic vein
Noun
veins formed by the union of the internal jugular and subclavian veins
blood clot
Noun
a semisolid mass of coagulated red and white blood cells
bicuspid valve
Noun
valve with two cusps
blood serum
Noun
an amber, watery fluid, rich in proteins, that separates out when blood coagulates
blood plasma
Noun
the colorless watery fluid of the blood and lymph that contains no cells, but in which the blood cells (erythrocytes, leukocytes, and thrombocytes) are suspended
bodily fluid
Noun
the liquid parts of the body
body fluid
Noun
the liquid parts of the body
bile duct
Noun
a duct formed by the hepatic and cystic ducts
biliary ductule
Noun
excretory ducts of the liver
biauriculate heart
Noun
a heart (as of mammals and birds and reptiles) having two auricles
blood group
Noun
human blood cells (usually just the red blood cells) that have the same antigens
blood type
Noun
human blood cells (usually just the red blood cells) that have the same antigens
bundle of His
Noun
a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract
bloodstream
Noun
the blood flowing through the circulatory system
blood stream
Noun
the blood flowing through the circulatory system
bursa omentalis
Noun
an isolated part of the peritoneal cavity that is dorsal to the stomach