P-R Flashcards
pH
measure of acidity
PANCREAS
gland of the digestive and endocrine system that produces insulin and pancreatic juices
PARATHYROID
an endocrine gland in the neck that produces parathyroid hormone
PASSIVE IMMUNITY
temporary immunity gained by a body that has acquired antibodies from an outside source
PATHOGEN
an infectious agent
PENIS
organ for elimination of urine and sperm from the male body
PERFUSION
passage of fluid to an organ or a tissue
PERIOD
one of seven horizontal rows in the periodic table
PERIODIC TABLE
table of elements expressed as columns and rows
PERIOSTEUM
thin layer that surrounds bone and is the surface for attachment of tendons and ligaments
PERISTALSIS
series of muscle contractions that move food through the digestive tract
PHAGOCYTOSIS
ingestion of particles by cell or phagocytes
PHENOTYPE
physical appearance of a trait formed by genetics and envronment
PHOSPHATE GROUP
phosphorous atom bound to 4 oxygen atoms
PHOSPHODIESTER BOND
covalent bond that links 2 nucleotides together in a nucleic acid molecule
PINEAL GLAND
small gland near the center of the brain that secretes melatonin
PITUITARY GLAND
endocrine gland at the base of the brain that controls growth and dvlpmt.
PLASMA
clear pale yellow component of blood that carries red blood cells, white blood cells, and platelets throughout the body
PLASMA CELL
white blood cell that produces a single type of antibody
PLEURA
membrane around lungs and inside chest cavity
POLYMER
substance composed of similar units bonded together
POLYSACCHARIDES
carb polymers made of many sugar molecules
POSITIVE FEEDBACK
mechanism that stimulates glandular secretion to continue increasing even past homeostasis until a biological effect is reached
PRODUCTS
in a chem equation, its the right side
PROSTATE
glands in males that controls the release of urine and secretes a portion of semen that enhances motility and fertility
PROTEINS
molecules composed of amino acids joined by peptide bonds
PROTONS
positively charged atomic particle
PROXIMAL TUBULE
first location where glucose and other useful solutes are reabsorbed back into the blood thru walls of surrounding capillaries.
Connects Bowman’s capsule to Loop of Henle
PUBERTY
physiological period in which changes in hormone levels cause a growth spurt and development of secondary sex characteristics
REACTANTS
in chem equatioin, its the left side
RECESSIVE
refers to trait that are masked if dominant alleles are also present
RECTUM
last section of large intestine ending w anus
REFERENCE PLANES
planes dividing body to describe locations:
SAGITTAL, CORONAL, TRANSVERSE
REFLEX
involuntary action to stimulus
RELAXATION
release of tension in a muscle
RELEASING HORMONES
chem messengers that stimulate the production of certain hormones
RENAL ARTERIES
two branches of abdominal aorta that supply kidneys
RENAL CORTEX
outer layer of the kidney
RENAL MEDULLA
innermost part of the kidney
RENAL PELVIS
center of kidney where urine collects before moving to the ureter
RENAL VEIN
vein carrying blood from a kidney to the inferior vena cava
RENIN
enzyme released by the kidney when reduced blood pressure is detected by baroreceptors in aorta and carotid arteries
RHEUMATOID ARTHRITIS
progressive autoimmune disease that causes join inflammation and pain
RIBOSOME
protein-RNA complex that is the site of protein synthesis
