Exam (elaborations)
BHSC 1200 midterm 3 Exam Study Guide with Complete Solutions
- Course
- Institution
BHSC 1200 midterm 3 Exam Study Guide with Complete Solutions
[Show more]
Content preview
©PREP4EXAMS@2024/2025 [REAL-EXAM-DUMPS] Sunday, August 4, 2024 12:41 AMWEST VIRGINIA UNIVERSIRTY- (WV) : 26506
BHSC 1200 midterm 3 Exam Study
Guide with Complete Solutions
functions of blood - ✔️✔️1) transportation: transports oxygen from lungs to cells of body;
transports carbon dioxide from cells to lungs; carries hormones and nutrients throughout
the body
2) regulation: circulating blood helps maintain homeostasis of all body fluids; regulates
pH through use of buffers; adjusts body temperature through heat-absorbing and
coolant properties of water
3) protection: clots prevent excessive loss from the cardiovascular system after an injury
describe the components of blood - ✔️✔️1) blood plasma: watery liquid extracellular
matrix that contains dissolved substances; ~55%
2) formed elements: cells and cell fragments; ~45%
functions of plasma proteins - ✔️✔️albumins: help maintain osmotic pressure
1
,©PREP4EXAMS@2024/2025 [REAL-EXAM-DUMPS] Sunday, August 4, 2024 12:41 AM
WEST VIRGINIA UNIVERSIRTY- (WV) : 26506
globulins: immunoglobulins help attack viruses and bacteria; alpha and beta globulins
transport iron, lipids globulins transport iron, lipids and fat-soluble vitamins
fibrinogens: blood clotting
define hematopoiesis - ✔️✔️-blood cell production
-occurs in red bone marrow after birth
explain where hematopoiesis occurs in the fetus, child, adolescent, and adults -
✔️✔️fetus: first occurs in yolk sac; liver, spleen, thymus, and lymph nodes; red bone
marrow in last 3 months before birth
child: medullary cavity of bones
adolescent: only in proximal quarter of femoral and humeral shafts
adults: proximal ends of long bones
structure of erythrocytes and how structure relates to function - ✔️✔️-biconcave discs
2
,©PREP4EXAMS@2024/2025 [REAL-EXAM-DUMPS] Sunday, August 4, 2024 12:41 AM
WEST VIRGINIA UNIVERSIRTY- (WV) : 26506
-strong and flexible plasma membrane, allowing the cell to deform without rupturing as
they squeeze through narrow capillaries
-no nucleus to allow them to carry more oxygen
structure and function of hemoglobin - ✔️✔️-consists of a protein called globin (composed
of 4 polypeptide chains) and a nonprotein pigment called heme which is bound to each
of the chains
-at the center of each heme ring is an iron ion that binds to oxygen
-transports oxygen and carbon dioxide; regulates blood flow
describe the function of erythropoietin and it's stimulus for release - ✔️✔️-increases
number of red blood cell precursors
-produced primarily by cells in the kidneys that lie between the kidney tubules
-with renal failure, EPO release slows and RBC production is inadequate, leading to
decreased hematocrit and decreased ability to deliver oxygen to body tissues
define hematocrit and provide examples of conditions that increase and decrease it -
✔️✔️-percentage of total blood volume occupied by RBCs
-normal range is 38-46 for females; 40-54 for males
3
, ©PREP4EXAMS@2024/2025 [REAL-EXAM-DUMPS] Sunday, August 4, 2024 12:41 AM
WEST VIRGINIA UNIVERSIRTY- (WV) : 26506
-increase: aka polycythemia; raises blood viscosity making it difficult to flow, high blood
pressure, increased risk of stroke; caused by tissue hypoxia, blood doping, use of EPO
by athletes, and abnormal increases in RBC production
-decrease: menstruation in women; anemia
define reticulocyte count and provide examples of conditions that increase and
decrease it - ✔️✔️-measures the rate of erythropoiesis
-increase: indicates good red bone marrow response to previous blood loss or to iron
therapy; could point to illegal use of epoetin alfa by an athlete
-decrease: indicates a shortage of erythropoietin or an inability of the red bone marrow
to respond to EPO in anemia (nutritional deficiency or leukaemia)
describe what happens to RBCs when they are damaged or die, including the fate of
hemoglobin breakdown - ✔️✔️1) macrophages in the spleen, liver, or red bone marrow
phagocytize ruptured or worn-out RBCs
2) the heme and globin parts of Hgb are split apart
3) globin is broken down into amino acids which can be reused to synthesize other
proteins
4
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller OliviaWest. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75759 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now