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PLTW Biomed 1.2.4-1.2.5 (1)
PLTW Biomed 1.2.4-1.2.5 (1)
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PLTW Biomed 1.2.4-1.2.5Histology - ANS-The study of the microscopic anatomy of tissues. Also known as microanatomy
cell - ANS-smallest unit of life
tissue - ANS-An integrated group of cells with a common function and/or structure
organ - ANS-A collection of tissues in an organism that performs a specific function, such as the
heart, brain, skin, and liver
organ system - ANS-A group of organs that work together to perform one or more functions
magnetic resonance imaging (MRI) - ANS-A medical imaging technique that uses magnetic
fields and radio waves to take pictures of the soft tissues of the body
Traumatic Brain Injury (TBI) - ANS-A brain dysfunction caused by an outside force to the head
Chronic Traumatic Encephalopathy (CTE) - ANS-A progressive degeneration and/or death of
nerve cells caused by repeated head injuries
cell, tissues, organs, organ systems - ANS-order of the body hierarchy
nervous system - ANS-Contains the brain, brain stem, spinal cord, and nerves; responsible for
receiving, interpreting, and reacting to signals from inside and outside the body; responds to
changes by transmitting electrical and chemical signals throughout the body
peripheral nervous system - ANS-Consists of all the nerves in the body; brings into from the
outside world and from within the body to the CNS for processing
central nervous system - ANS-consists of brain and spinal cord; the brain processes the info
obtained from the nerves, makes a decision about what time do and sends a back a signal to
the PNS
Brain - ANS-housed within the protective covering of the skull; the most complex organ in the
body. controls thought, behavior, emotions, and memory as well as basic life functions such as
heart rate and breathing
Spinal cord - ANS-The main pathway for information connecting the brain to the other nerves
throughout the body
Nerves - ANS-Bundles of fibers that transmit information to and from the brain and spinal cord
, Concussion - ANS-An injury to the head that causes the brain to quickly move back and forth,
hitting the inside of the skull
cardiovascular system - ANS-The transport system of the body responsible for carrying oxygen
and nutrients to the body and carrying away carbon dioxide and other wastes; composed of the
heart, blood vessels, and blood
Atrium - ANS-An upper chamber of the heart where blood enters. The heart has two atria: the
left atrium connects to the lungs and the right atrium connects to the veins
Ventricle - ANS-A lower chamber of the heart where blood exits. The heart has two ventricles:
the left connects to the aorta and the right connects to the main pulmonary artery (or pulmonary
trunk)
Valve - ANS-A body structure that temporarily closes a passage or orifice, or permits movement
of fluid in only one direction
Artery - ANS-A type of vessel that carries blood from the heart through the body; part of the
circulatory system
Vein - ANS-A vessel that returns blood—typically deoxygenated—to the heart
Pulmonary Circulation - ANS-Part of the circulatory system in which deoxygenated blood moves
from the right ventricle of the heart to the lungs (through arteries) to become oxygenated and
then returns to the left side of the heart (through veins)
Systematic Circulation - ANS-The series of vessels that bring oxygenated blood from the heart
to tissues and return deoxygenated blood from the tissues back to the heart
Aorta - ANS-The largest artery in the body, the aorta carries oxygenated blood from the left
ventricle of the heart to the rest of the body
Superior Vena Cava - ANS-The second largest vein in the human body; returns blood to the
right atrium of the heart from the upper half of the body
Inferior Vena Cava - ANS-The largest vein in the human body; returns blood to the right atrium
of the heart from body parts below the diaphragm
Tricuspid Valve - ANS-The valve situated at the opening of the right atrium of the heart into the
right ventricle; consists of three triangular membranous flaps
mitral valve (bicuspid valve) - ANS-A valve in the heart that guards the opening between the left
atrium and the left ventricle; prevents the blood in the ventricle from returning to the atrium.
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