Exam 1 Flashcards
Metabolic waste
breakdown proteins, DNA or RNA (nitrogen)
waste gets carried to kidneys
Hormone
a chemical used for communication, of an organ, that travels through the blood to affect another organ.
Homeostasis
Blood volume affecting blood pressure
Osmotic balance
hemostasis
Temperature
Osmotic balance
affecting cell volume, blood pressure
amount of water/material entering and exiting
Hemostasis
keeping blood volume from dropping
blood clotting
Formed element
cells or pieces of cells
subcategories are RBC, WBC, and Platelets
Red blood cell
transport gases, O2 also carries CO2 to and from lungs & tissues
What are the three names of an RBC
Red blood cells
RBC’s
Erythroeytes
Erythrocyte
Red blood cell. Transports nutrients. Especially gas.
White blood cell
Leukocyte. Inflammation and infection
Leukocyte
White blood cell. Inflammation and infection
WBC
White blood cell, leukocyte. Inflammation and infection
Platelet
Thrombocyte. What clots blood.
Thrombocyte
Platelet. What clots blood.
Plasma
The non-formed element of blood. 90% water, 10% solutes. About 55% of a blood sample when spun down.
Serum
Plasma without clot forming protein
Albumin
Smallest on the “globulin” scale. A colloid. A liver protein used to bring osmotic balance, fatty acid and steroid transport. Transports “hydrophobic elements”
Osmotic balance
affecting cell volume, venous return, BP
amount of water/ material entering and exiting the cell
Fatty acid
Fatty acids are the building blocks of the fat in our bodies and in the food we eat
Steroid
any of a group of hormones that belong to the class of chemical compounds known as steroids
Alpha-globulin
enzymes that transport iron (Fe2+), lipids, vitamins (hydrophobic)
Beta-globulin
Same as alpha but are also fibrinogen
Fibrinogen
part of the beta globulins are soluble, unpolymerized clotting proteins.
In the beta globulins, the clotting protein (fibrin) in serum gets taken out
take fibrin out and have serum, gen is the beginning so when the end is taken out just have the start.
Gamma-globulin
Immunoglobulin. Ig’s, antibodies
from WBC’s, salt minerals (Zn,Mg,Mn) form dietary absorption, bones (Ca2+), and liver (stores iron & sugars)
Antibody
An antibody, also known as an immunoglobulin, is a large, Y-shaped protein used by the immune system (gamma globulins)
Immunoglobulin
a different name for an antibody (gamma globulins)
Adipose
Fat cells
Amino acid
amino nitrogen-containing, a portion of a C-H-containing molecule
building blocks of a protein
Nucleotides
The basic structural unit of nucleic acids like DNA
Endocrine
something (inside the body) that secretes hormones into the blood to affect another organ
is an organ that makes hormones to act on other organs
Hematocrit
packed cell volume, PCV
Hema (red) to (cell), crit (count)
In a centrifuge, the RBC ends up on the bottom will all the formed elements. the plasma is on the top. take the total amount divided by the packed volume at the bottom
Packed cell volume
the amount of red blood cells and formed elements in the blood. another name for hematocrit
PCV
Packed cell volume
Buffy coat
What separates plasma from clotted RBCs in a sample
Centrifuge
A device that spins down and separates samples
Viscosity
Thickness of a liquid
What is transported in the blood?
O2, CO2, salts minerals, hormones, fatty acids, lipids, vitamins, iron
along with other waste products
What does the blood hold constant?
what is the relationship between Osmotic balance and blood volume?
osmotic balance can affect blood pressure which has to deal with the amount of volume of blood. therefore the amount of blood going in and out of the heart depends on the osmotic balance.
what is the relationship between blood volume and blood pressure
When blood volume increases, it expands your arteries and veins and leads to increased blood pressure.
what is the relationship between osmotic balance and cell volumes?
the amount of material entering or exiting the cell depends on the volume in that cell
cells regulate internal volume in response to osmotic stress
list the three classes of formed elements
Red blood cells, White blood cells, Platelets
- Alternative name & function (Red blood cells)
RBC’s, erythrocytes
Transport gases
O2 & CO2 to and from lungs & tissues
- Alternate names & function (White blood cells)
WBC’s, leukocytes
some role in immunity and inflammation (tissue damage, infection)
- Alternate names and function (platelets
thrombocytes (blood clots)
not full cells, used for clotting
what is the difference between homeostasis & hemostasis?
homeostasis is to place the body in conditions for optimal functioning. while hemostasis keeps the blood volume from dropping to low. (it is a subset of homeostasis)
what is the difference between serum and plasma?
the serum is plasma without clot-forming proteins. centrifuge the clotting proteins will go to the bottom and the serum will stay at the top. Serum is a subset of plasma
what criterion is used to distinguish between alpha- beta- and gamma-globulins
What the globulins carry and how large they are
small (albumin, alpha, beta (fibrinogen), gamma) large
alpha: enzymes (Fe, lipids, vitamins, things that are hydrophobic)
beta: enzymes (soluble, unpolymerized clotting protein, fibrinogen)
Gamma: antibodies, immunoglobulins (salt & minerals from dietary absorption, bones, liver
what does hematocrit indicate
hematocrit indicates the red blood cell count
How is hematocrit measured
measured by centrifuging blood and dividing the total volume (plasma + buffy coat + hematocrit) by the hematocrit
what is the normal range of hematocrit
the normal range of RBC by volume in whole blood is 37-52%
what determines blood viscosity?
how the blood flows through the body (the resistance of flow specifically), thickness, gooiness, syrupiness (honey, syrup)
What are the risks of high blood viscosity?
high viscosity leads to high blood pressure & high hematocrit
Plasma components from the liver & function
the majority of proteins are made in the liver. a lot of those proteins are clotting proteins
Plasma components from the white blood cells & function
Albumin, antibodies, immunoglobulins, platelets
In the buffy coat
Plasma components from the endocrine organs & function
different hormones to affect different organs and systems
Plasma components from the digestive system & function
Plasma components from the bones & function
Plasma components from the respiring cells & function
Plasma components from the lungs & function
Plasma components from the fat cells & function
How does hematocrit numbers, blood viscosity, and blood pressure impact each other?
When one increases, the other increases.
+ Hematocrit = + Viscosity
+ Viscosity = + BP
+ BP = + Hematocrit
Hematopoiesis
Growth of red blood cells
Yolk sac
helps form blood and small cells
Aorta
major artery in the human body
Extramedullary
the production of blood cells outside of the bone marrow (not an adequate production of blood cells)
Femur
holds bone marrow and is a long bone
Humerus
holds bone marrow
Red bone marrow
This type of bone marrow contains hematopoietic stem cells, which are the stem cells that form blood cells
Stem cell
Unspecialized cells that can specialize in times of need
Differentiation
Cells that have a specialized purpose
Hematopoietic stem cell
slightly Specialized stem cells that form blood cells
Hemocytoblast
Immature red blood cells
Lymphoid stem cells
stem cells that will form B and T cells and are terminally differentiated
Lymphoid cells are pluripotent
Lymphocytes
a type of white blood cell that is part of the immune system
finish their differentiation in the thymus
Myeloid stem cells
will form granulocytes some phagocytes and RBC’s
Myeloid cells are pluripotent
Thymus
where some stem cells go to finish differentiation
What is the average life span of erythrocytes
~4 months
What is the average life span of Leukocytes
~ 2-3 weeks
What is the average life span of Thrombocytes
~ 1 week
What is the difference between stem cell & hematopoietic stem cell
SC: unspecialised cell that divides rapidly
HemSC: slightly specialized, will only make blood cells
What is the difference between Lymphoid and myeloid progenitors
Ly: give rise to B& T cells
My: give rise to granulocytes, phagocytes, RBC’s
Where is red bone marrow most commonly found in adults
Skull, vertebrae, Pelvis, Femur, Humerus
List in chronological order the tissues and organs that give rise to blood cells over the course of a lifetime?
start in yolk sac, get a bit more specific
aorta: in this stage is near kidneys & gonads
then to the liver and spleen (if these organs can still produce RBC’s as an adult it is called extramedullary hematopoiesis
bone marrow (skull, vertebrae, pelvis, femur, humerus)
Cytoskeleton
network of protein filaments and tubules in the cytoplasm, giving them shape
Ribosome
Ribosomes are used for protein synthesis, they link amino acid together
Mitochondrion
hehe powerhouse of the cell
used for aerobic respiration to bring energy to the cell
Aerobic respiration
the use of oxygen to get energy in the form of ATP
O2 + glucose –> CO2 + H2O (ADP –> ATP)
Anaerobic respiration
no oxygen is used glucose is turned into ethanol or lactic acid
lactic acid we make as a waste product
Fermentation
he chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat.
Carbonic anhydrase
anhydrase is without water enzyme
it is the process of CO2 in the blood turning into Bicarbonate
H2O + CO2 <–> H2CO3 <–> H+ + HCO3- (goes both directions)
Bicarbonate
H2CO3
dissolves in plasma better, increasing CO2 transport
Globin
there are 4 globin polypeptides in a hemoglobin
2 alpha and 2 beta
Alpha Globin
Subunits of the large protein hemoglobin
Beta globin
subunits of the large protein hemoglobin
Heme
is the disc held by Globin
is the organic ring cofactor on globin
the cell can’t carry O2 or CO2 without heme
the configuration of heme holds Fe (that holds O2)
Cofactor
is attached to the polypeptide and allows the peptide to function (like the key to a car)
Erythropoiesis
the porduciton of RBC’s
Differentiation
when a cell matures, divides less, more specialized
Erythroblast
in red bone marrow, make hemoglobin & lose nucleus
Reticulocyte
enter circulation w/ some organelles left (no nucleus) not in bone marrow
can see on a microscope look like a RBC but have blue (ribosomes)
Erythropoietin (EPO)
is a hormone that can effect organs
the hormone is secreated more when O2 levels drop in the blood
Negative feedback loop
returns to homeostasis
Stimulus
what has changed that the body has to adjust?
Receptor
measures stimulus
Sensor
same as receptor
integrator
decides if stimulus is too far from set point
control center
another word for integrator
Efferent signal
notifies organs that action is needed
Effector
the organ that can correct the probelm
Response
what the effector does
Result
what happens after the response
Phagocytosis
phage (eat), Cyt (cell) Osis(process)
process of eating a cell