the bodily fluid that fills the space between the bony labyrinth and the membranous labyrinth of the inner ear
protective fold
Noun
a flap of tissue that protects what it covers
palpebra
Noun
either of two folds of skin that can be moved to cover or open the eye
posterior cardinal vein
Noun
a major drainage channel from the caudal part of the body
palatine artery
Noun
one of several arteries supplying the face
pancreatic artery
Noun
a branch of the splenic artery that supplies the pancreas
perineal artery
Noun
a branch of the internal pudendal artery that supplies superficial structures of the perineum
pudendal artery
Noun
arteries supplying the external genital organs of humans
popliteal artery
Noun
a continuation of the femoral artery that branches to supply the legs and feet
pulmonary artery
Noun
one of two arteries (branches of the pulmonary trunk) that carry venous blood from the heart to the lungs
pulmonary trunk
Noun
the artery that carries venous blood from the right ventricle of the heart and divides into the right and left pulmonary arteries
posterior temporal artery
Noun
temporal artery that supplies the posterior part of the cortex of the temporal lobe
posterior meningeal artery
Noun
branch of the ascending pharyngeal artery that supplies the dura mater of the posterior cranial fossa
palatine vein
Noun
a vein that drains the region of the palate and empties into the facial vein
pancreatic vein
Noun
veins draining the pancreas and emptying into the superior mesenteric and splenic veins
paraumbilical vein
Noun
small veins arising in skin around the navel
parotid vein
Noun
parotid branches of the facial vein
pulmonary valve
Noun
a semilunar valve between the right ventricle and the pulmonary artery
pectoral vein
Noun
veins that drain the pectoral muscles and empty into the subclavian vein
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
plasma
Noun
(physical chemistry) a fourth state of matter distinct from solid or liquid or gas and present in stars and fusion reactors
plasma
Noun
a green slightly translucent variety of chalcedony used as a gemstone
perforating vein
Noun
veins that accompany the perforating arteries
plasm
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
plasm
Noun
the protoplasm of the germ cells that contains chromosomes and genes
pericardial vein
Noun
several small veins from the pericardium
peroneal vein
Noun
accompany the peroneal arteries
pharyngeal vein
Noun
veins from the pharyngeal plexus that empty into the internal jugular vein
phrenic vein
Noun
either of two veins that drain the diaphragm
popliteal vein
Noun
a vein arising in the knee and ascending to become the femoral vein
portal system
Noun
the system of veins that carry blood from the abdominal organs to the liver
portal vein
Noun
a short vein that carries blood into the liver
posterior vein of the left ventricle
Noun
arises near the apex of the heart and empties into the coronary sinus
prepyloric vein
Noun
a tributary of the right gastric vein
pulmonary vein
Noun
any of four veins that carry arterial blood from the lungs to the left atrium of the heart
pancreas
Noun
a large elongated exocrine gland located behind the stomach
pancreatic duct
Noun
a duct connecting the pancreas with the intestine
pyloric vein
Noun
receives veins from the upper surfaces of the stomach and empties into the portal vein
pleura
Noun
the thin serous membrane around the lungs and inner walls of the chest
parietal pleura
Noun
pleura that lines the inner chest walls and covers the diaphragm
pleural cavity
Noun
the cavity in the thorax that contains the lungs and heart
pleural space
Noun
the small potential space between the parietal and visceral layers of the pleura
posterior facial vein
Noun
posterior branch of the facial vein
papillary muscle
Noun
any of several muscles associated with the atrioventricular valves
pronucleus
Noun
the nucleus of the ovum or sperm after fertilization but before they fuse to form the nucleus of the zygote
parthenote
Noun
a cell resulting from parthenogenesis
protoplasm
Noun
the substance of a living cell (including cytoplasm and nucleus)
parathyroid hormone
Noun
hormone synthesized and released into the blood stream by the parathyroid glands
parathormone
Noun
hormone synthesized and released into the blood stream by the parathyroid glands
postcava
Noun
receives blood from lower limbs and abdominal organs and empties into the posterior part of the right atrium of the heart