Wk. 1 Root Words

a-,an- through broncho-

a-, an-

not, without

ex. acardia, lack of a heart; anaerobic, in the absence of oxygen

ab-

off, from, away

ex. abnormal, departing from normal

acou-

hearing

ex. acoustics, the science of sound

acr-, acro-

at the apex, extremity, peak

ex. acrodermatitis, inflammation of the skin of the extremeties

ad-

to, toward

ex. adorbital, toward the orbit

aden-, adeno-

gland

ex. adeniform, resembling a gland in shape

aero-

air

ex. aerobic respiration, oxygen-requiring metabolism

af-

toward

ex. afferent neurons, which carry impulses to the central nervous system

alb-

white

ex. corpus albicans of the ovary, a white scar tissue

amphi-

on both sides, of both kinds

ex. amphibian, an organism capable of living both in water and on land

ana-

apart, up, again

ex. anaphase of mitosis, when the chromosomes separate

angi-

vessel

ex. angiitis, inflammation of a lymphatic vessel or blood vessel

ant-, anti-

against, opposite

ex. anticoagulant, a substance that prevents blood coagulation

ante-

preceding, before

ex. antecubital, in front of the elbow

ap-, api-

tip, extremity

ex. apex of the heart

append-

hang to

ex. appendicular skeleton

aqua-, aque-

water

ex. aqueous solutions

areola-

open space

ex. areolar connective tissue, a loose connective tissue

arthr-, arthro-

joint

ex. arthropathy, any joint disease

artic-

joint

ex. articular surfaces of bones, the points of connection

atri-

vestibule

ex. atria, upper chambers of the heart

aut-, auto-

self

ex. autogenous, self-generated

ax-, axi-, axo-

axis, axle

ex. axial skeleton, axis of vertebral column

azyg-

unpaired

ex. azygous vein, an unpaired vessel

basal

base

ex. basal lamina of epithelial basement membrane

bi-

two

ex. bicuspid, having two cusps

bio-

life

ex. biology, the study of life and living organisms

blast-

bud, germ

ex. blastocyte, undifferentiated embryonic cell

brachi-

arm

ex. brachial plexus of peripheral nervous system supplies the arm

brev-

short

ex. peroneus brevis, a short leg muscle

broncho-

the windpipe

ex. bronchospasm, spasmodic contraction of bronchial muscle