a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart)
immune system
Noun
a system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by producing the immune response
integumentary system
Noun
the skin and its appendages
isogamete
Noun
either of a pair of conjugating gametes of the same size and structure
inferior colliculus
Noun
an essential auditory center in the midbrain
introitus
Noun
entrance or opening to a hollow organ or tube (especially the vaginal opening)
islands of Langerhans
Noun
cell clusters in the pancreas that form the endocrine part of that organ
isles of Langerhans
Noun
cell clusters in the pancreas that form the endocrine part of that organ
islets of Langerhans
Noun
cell clusters in the pancreas that form the endocrine part of that organ
interbrain
Noun
the posterior division of the forebrain
imperforate hymen
Noun
hymen that is completely closed so that menstrual blood cannot flow out
inferior vocal cord
Noun
either of the two lower vocal folds that come together to form the glottis
inferior vocal fold
Noun
either of the two lower vocal folds that come together to form the glottis
intermaxillary suture
Noun
the suture between the two maxillae of the upper jawbone
intestine
Noun
the part of the alimentary canal between the stomach and the anus
internasal suture
Noun
the suture between the two nasal bones
ileum
Noun
the part of the small intestine between the jejunum and the cecum
interparietal suture
Noun
the suture uniting the two parietal bones
interventricular foramen
Noun
the small opening (on both the right and left sides) that connects the third ventricle in the diencephalon with the lateral ventricle in the cerebral hemisphere
ileocecal valve
Noun
valve between the ileum of the small intestine and the cecum of the large intestine
imperforate anus
Noun
a congenital defect of the anus
interphalangeal joint
Noun
any of the joints between the phalanges of the fingers or toes
intercellular substance
Noun
the body substance in which tissue cells are embedded
intercostal muscle
Noun
muscles between the ribs
ingrown toenail
Noun
toenail having its free tip or edges embedded in the surrounding flesh
index
Noun
the finger next to the thumb
index
Noun
an alphabetical listing of names and topics along with page numbers where they are discussed
index
Noun
a number or ratio (a value on a scale of measurement) derived from a series of observed facts
index
Noun
a mathematical notation indicating the number of times a quantity is multiplied by itself
index
Noun
a numerical scale used to compare variables with one another or with some reference number
index
Verb
adjust through indexation
index
Verb
provide with an index
index
Verb
list in an index
index finger
Noun
the finger next to the thumb
imagination
Noun
the formation of a mental image of something that is not perceived as real and is not present to the senses
imagination
Noun
the ability to deal resourcefully with unusual problems
imagination
Noun
the ability to form mental images of things or events
imaginativeness
Noun
the formation of a mental image of something that is not perceived as real and is not present to the senses
imaginary place
Noun
a place that exists only in imagination
id
Noun
(psychoanalysis) primitive instincts and energies underlying all psychic activity
indiscreetness
Noun
lacking good judgment
intellect
Noun
knowledge and intellectual ability
intellect
Noun
the capacity for rational thought or inference or discrimination
intellect
Noun
a person who uses the mind creatively
infernal region
Noun
(religion) the world of the dead
infernal region
Noun
(Christianity) the abode of Satan and the forces of evil
inguen
Noun
the crease at the junction of the inner part of the thigh with the trunk together with the adjacent region and often including the external genitals
insightfulness
Noun
shrewdness shown by keen insight
instinct
Adjective
(followed by `with')deeply filled or permeated
instinct
Noun
inborn pattern of behavior often responsive to specific stimuli