click below
click below
Normal Size Small Size show me how
A&P Ass3 Terms
Penn Foster Intro to A&P Assignment 3 Terms
Term | Definition |
---|---|
Adult hemoglobin | the primary type of hemoglobin found in RBCs of animals beginning a couple of weeks to a couple of months after birth |
agranulocytes | WBCs w/o cytoplasmic granules |
air sacs | "9 thin, transparent membranes in birds that are connected to the primary & secondary bronchi & act as reservoirs for entering & leaving the lungs" |
alveolar ducts | the smallest air passageways in the lungs |
alveolar sacs | clusters of alveoli at the ends of the alveolar ducts |
alveoli | "microscopic, thin-walled sacs surrounds by networks of capillaries" |
Anemia | "decreased oxygen-carrying capacity of the blood caused by insufficient numbers of RBCs, decreased hemoglobin concern, or a combo of both" |
antigen | "cells or organisms that are ""not self""; initiates an immune response" |
aorta | major artery of the systemic circulation that receives blood from the LV |
aortic valve | a semilunar valve; separates the LV & the aorta during diastole |
arytenoid cartilages | two of the cartilages of the larynx; attach to vocal cords |
auricles | ear-shaped appendage of either atrium of the heart |
B Lymphocytes | the type of lymphocyte that is responsible for humoral immunity through its transformation into a plasma cell & production of antibodies |
basopenia | decrease in the total number of basophils in peripheral blood |
Basophils | "granulocytic WBC characterized by the presence of numerous, dark blue-staining" |
bifurcation of the trachea | the division of the trachea at its caudal end into the left & right main bronchi |
bilirubin | the yellow breakdown product of hemoglobin |
blastic transformation | B lymphocytes become plasma cells that produce antibodies |
bronchi | largest air passageways in the lungs; branch into bronchial tree |
bronchial tree | air passageways in the lungs between the main bronchi & the alveoli |
bronchioles | some of the smallest branches of the bronchial tree; divide into alveolar ducts |
bursa of Fabricius | specialized organ in brids needed for B lymphocyte development |
Cardiac output | amount of blood that leaves the heart |
cell-mediated immunity | "portion of the immune system that produces ""killer"" cells that directly attack foreign invaders" |
Chemical system | "respiratory control that monitors the pH, O2 & CO2 content." |
chemotaxis | movement of WBC to an area of inflammation in response to chemical mediators |
choanae | 2 internal nares that open from the nasal chmabers into the roof of the mouth |
chordae tendinae | "fine, threadlike cords that connect 2 AV to the appropriate papillary muscles in the ventricles" |
chylomicrons | microscopic particles of fat found in chle & blood |
circulating pool | neutrophils found in the peripheral blood flowing through the center of blood vessels |
cricoid cartilage | one of the cartilages in the larynx; form & support the caudal portion of the larynx |
Deoxyhemoglobin | hemoglobin that is not carrying oxygen |
diapedesis | WBC leave the blood vessel & enter the tissue by squeezing through the tiny spaces between the cells lining the blood vessel walls |
diaphragm | "thin, dome-shaped sheet of muscle that forms the boundary between the thoracic & abdominal cavities" |
diaphragmaticus | the muscle that attaches the caudal aspect of the liver to the pubis is reptiles & amphibians |
diastole | partrt of the cardica cycle associated w/ relaxation of the atria & ventricles & the filling of the chambers w/ blood |
edema | abnormal accumulation of fluid (localized/generalized) w/I the tissues/cavities of the body |
electrocardiogram (ECG/EKG | recording of the electrical activity of the heart |
Embryonic Hemoglobin (HbE) | hemoglobin found in RBCs during early fetal life. |
eosinopenia | decrease in the total number of eosinophils in peripheral blood |
eosinophilia | increase in the total number of eosinophils in peripheral blood |
Eosinophils | granulocytic WBC characterized by the presence of numerous red-staining granules |
epiglottis | "most rostral of laryngeal cartilages, assists in breathing & swallowing" |
epitope | the amino acids on the cell surface of antigens |
erythropoiesis | production of erythrocytes |
expiration | pushing air out of the lungs; exhalation |
external respiration | process of respiration that occurs in the lungs |
extravascular hemolysis | destruction of RBCs outside of a blood vessel |
false vocal cords | vestibular folds; connective tissue b&s in the larynx of nonruminant animals in addition to vocal cords |
faveoli | minute pits or depressions |
Fetal Hemoglobin (HbF) | predominant hemoglovin in RBCs during later part of gestation |
fibrinolysis | destruction of the fibrin str&s that make up the matrix of a clot |
foramen of Panizza | shunt connecting the left & right atria in the crocodile heart |
glottis | opening in the larynx |
granulocytes | WBCs characterized by the presence of granules |
granulopoiesis | production of granulocytes |
gular fluttering | rapid vibations of the upper trhoart patch in some birds; used to increase cooling |
gut associated lymphoid tissue (GALT) | lymphoid tissue scattered throughout the lining of the intestines |
haptoglobin | transport plasma protein that carries free hemoglobin from intravascular hemolysis to the macrophages of the MPS for further breakdown |
Heart rate | how often the heart contracts |
Hematopoiesis | blood cell production |
hematopoietic stem cells | tissue that produces blood cells |
hemoconcentration | condition resulting from loss of plasma from blood into tissue |
hemodilution | condition resulting in excess fluiid entering blood from tisse or IV injection |
Hemoglobin | protein molecules found inside RBCs that are responsible for carrying oxygen molecules |
hemoglobinemia | hemoglobin in plasma |
hemoglobinuria | free hemoglobin found in urine |
hemostasis | stoppind the flow of blood out of a blood vessle |
Heterophils | phagocytic avian WBC similar to neutrophil |
hilus | isolated area of some organs where blood vessles & other structures enter & leave |
homeostasis | state of chemical equilibrium maintained in the body by feedback & regulation processes in response to internal & external changes |
humoral immune response | type of defense immune response regulated by B lymphocytes |
immunoglobulins | "created by B lymphocytes, aka antibodies" |
inspiration | process of drawing air into the lungs; inhalation |
intercostal spaces | space between two ribs |
internal respiration | exchange of O2 & CO2 between the blood in the capillaries all over the body & the cells & tissues of the body |
interpleural space | space betwween the pleural covering of the right & left lung |
intravascular hemolysis | destructuion of RBCs w/I a blood vessel |
larynx | """voice box"" short, irregulat tube of cartilage & muscle that connects the pharynx w/ the trachea" |
lateral ventricles | blind pouches that project laterally between the vocal cords & the vestibular folds in the larynxes of nonruminants |
lobes | subdivisions of the lungs |
lower respiratory tract | all of the respiratory strucutres w/i the lungs |
lymph | excess tissue fluid that is picked up by lymph vessels & retured to peripheral blood |
Lymphocytosis | increase in the number of lyphocytes |
Lymphopenia | decrease in the number of lymphocytes |
lysosomes | organelle that fights pathogens; contains digestive enzymes that help destroy microorganisms that have been eaten by neutrophils |
marginal pool | neutrophils found lining the walls of small blood vessels |
mast cells | transient cell of connective tissue containing heparin & histamine used in the inflammatory response |
Mechanical system | sets inspiration & expiration limits for normal resting breathing |
mediastinum | area of the thorax between the lungs |
megakaryocytes | "large, multinucleated cells in red bone marrow that are parent cells of platelets" |
memory cells | lymphocytes that are programmed to remember the antigen that caused a previous immune response & to produce a more rapid response the second time |
mesobronchi | avian bronchi that has entered the lungs & lost their reinforcing cartilaginous rings |
minute volume | volume of air that an animal breathes in & out during one minute |
mitral valve | left AV valve; separates the LA & venticle & protects the pulmonary venous system from the high pressures in the LV during systole |
Monocytes | "large, phagocytic WBC" |
monocytopenia | decrease in the number of monocytes |
monocytosis | increase in the number of monocytes |
mononuclear phagocyte system | collective term fro monocytes & tissue macrophages |
multicameral lung | multichambered lung |
myocardium | middle layre of the heaert & the main muscle layer responsible for contraction during systole |
nares | nostrils |
nasal meatus | any of the main passageways in the nasal cavity |
nasal passages | convoluted air passageways in the nose that conduct air between the nostrils & the pharynx |
nasal septum | midline barrier that separates the left & right nasal passages |
Natural Killer Cells (NK) | lymphocytes that are neither T lymphocytes nor B lymphocytes but have the ability to kill some types of tumor cells & cells infected w/ various viruses |
Neutrophils | phagocytes & first line of defense because of fast response time |
olfactory sense | sense of smell |
opsonins | plasma protein that cotas an antigen making it more attractive to phagocytes |
opsonization | process by which osonins coat an antigen |
Oxyhemoglobin | hemoglobin that is carrying oxygen |
papillary muscles | "muscular, nipplelike projectiions in the heart that anchor the chordae tendineae" |
parabronchi | subdivisions of the secondary bronchi in birds |
paranasal sinuses | space w/i a skull bone that is an outpouching of the nasal cavity |
partial pressure | portion of the overall pressure each gas exerts |
paucicameral lung | lung w/ four chambers |
pericardium | tissue that forms a sac around the heart to protect it & to control the movement of the heart w/i the throax |
Peripheral blood | blood outside the bone marrow that is flowing to & from the heart & lungs in blood vessles |
petechiae | "small hemorrhage found on the skin, mucous membranes, & serosal surfaces" |
phagocytosis | ingestion of microorganisms by phagocytic cells |
pharynx | throat; common passageway for the respiratory & digestive systems |
phonation | voice production |
Pleomorphic | describes a monocyte nucles that can change shape w/o dividing into segments |
pluripotent stem cells (PPSCs | primitive cell type found in red bone marrow |
polychromasia | describes immature RBC cytoplasm when it is still metabolicailly acive & has started prducing hemoglobin |
Polycythemia | abnomral increase in number of RBCs |
Polymorphonuclear | describes a nucleus that has many shapes |
pulmonary | adj referring to the lungs |
pulmonary artery | arises from the RV that delivers blood into the pulmonary circulation |
pulmonary circulation | delivers unoxygenated blood to the lungs & oxygenated blood to the left side of the heart |
pulmonary valve | separates the RV & the pulmonary arter during diastole |
pyknotic | nucleus has died |
red bone marrow | hematopoietic type of bone marrow |
red pulp | area of the spleen that is filled w/ blood sinusoids & macrophages |
renal portal system | the network of veins that transport blood from the extremities to the kidneys before returing it to the heart in birds. |
residual volume | volume of air remaining in the lungs after the max amount of air has been forced out b expiration |
respiratory center | area in the brain stem that controls the berathing process |
roaring | produced by paralysis of the muscles that tighten the arytenoid cartilages & vocal cord on one side (usually left); laryngeal hemiplegia |
senescence | process of aging |
septum | partition in an organ or area |
sinoatrial node | groups of specialized caridac muscle cells in the wall of the RA of the heart acts as the heart's pacemaker |
sinuses | outpouching of the nasal passages that are housed w/i spaces in areas of the skull bones |
Stroke volume | amount of blood ejected w/ each cardiac contraction |
sulcus | "grooves, especially shallow grooves, in the cerebral cortex" |
surfactant | componenet of the fluid that lines the alveoli in the lungs |
syrinx | enlargement of the trachea above the sternum (birds) |
systole | part of the cardiac cycle assoc w/ contraction of the ventricles & atria & ejection of blood into the arterial systems |
T Lymphocytes | responsible for cell-mediated immunity |
thoracic duct | large lymph vessel found in the thorax |
thorax | aka thoracic/chest cavity |
Thrombocytes | platelets |
thrombopoiesis | production of platelets |
thymocytes | pre T-cells in the thymus |
thyroid cartilage | V-shaped that forms & supports the ventral portion of the larynx |
tidal volume | volume of air breathed in & out in one breath |
trachea | "windpipe; short, wide ube that extends from the larynx to the thorax & branches into the left & right main bronchi" |
tricuspid valve | right AV valve; separates the RA & ventricle |
turbinates | "4 thin, scroll-like bones that fill most of the space in the nasal cavity" |
unicameral lung | one-chambered lung |
upper respiratory tract | respiratory structures outside the lungs |
vestibular folds | false vocal cords |
vocal cords or vocal folds | 2 fibrous connective tissue b&s attached to the arytenoid cartilages that stretch across the lumen of the larynx & vibrate as air passes over them |
white pulp | area of the spleen that contains lymphocytes |
whole blood | blood that contains plasma & all the formed elements |
yellow bone marrow | most common; consist mainly of adipose connective tissue |