Blood Flashcards
What components are consisted In The cardiovascular system
- Blood
- Heart
- Blood vessels
How does blood play a role in transportation in the human body?
a. blood transports oxygen from the lungs to the cells of the body
b. Transports nutrients from the gastrointestinal tract to cells
c. Heat and waste products to various organs for elimination
How does blood regulate the human body ?
a. Regulates blood PH through the use of buffers
b. Helps adjust body temp
How does blood protect the human body?
a. Can clot(become gel-like) which prevents blood loss
b. It’s white blood cells help protect the body against disease and bacteria
What is the blood volume in males?
5-6L
How much blood volume is in women?
4-5L
What is the temperature of blood usually?
Blood temp is around 38’C
What is the pH index for blood?
7.35- 7.45
What are the functions of blood In the human body?
Regulation
Protection
Transportation
What are the components of blood?
Blood plasma
Formed elements
What are the three principals that are consisted in Formed elements
RBC
WBC
Platelets
What are the RBC and WBC also known as?
Erythrocytes and leukocytes
What is The percentage of total blood volume occupied by RBC called?
hematocrit
Lymphocytes are the major soldiers in lymphatic system battles. 3 main types
- B cells
- T cells
- NK cells
How does blood contribute in homeostasis?
transporting
oxygen, carbon dioxide, nutrients, and hormones to and from your body’s cells.
regulates
body pH and temperature,
provides protection
against disease through phagocytosis and the production of antibodies
What is the importance of blood and interstitial fluid?
They assist in helping multicellular organism that cannot move around to obtain oxygen and nutrients or eliminate carbon dioxide and other wastes.
What is blood?
Extra: what is the extra cellular matrix called?
Blood is a liquid connective tissue that consists of cells surrounded by a liquid extracellular matrix.
The extracellular matrix = blood plasma: it suspends various cells and cell fragments.
What is interstitial fluid? How is it renewed?
Interstitial fluid is the fluid that bathes body cells and is constantly renewed by the blood.
What is the reverse direction for carbon dioxide to be eliminated?
from body cells to interstitial fluid to blood.
What does EOP do and where is it produced in the human body?
Erythropoietin (EPO) increases the number of red blood cell precursors. EPO is produced by cells in kidneys
What is TPO. Where is it produced from?
Thrombopoietin (TPO) is a hormone produced by the liver that stimulates the formation of platelets from megakaryocytes.
What is hemostasis
The process of blood clotting and healing
What is the bloods main function in the human body?
Transportation
What is the average life cycle for RBC
120 days
What is hypoxia
Oxygen deficiency at tissue level
What is chemotaxis
Inflamed or damaged cells release this chemical to attract phagocytes
In hemostasis, there are 3 steps that prevent blood loss. What does this prevent if successful
Vascular spasm: arteries and arterioles are damaged; smooth mm of outer walls contract to shrink vessel to reduce blood flow and loss for serveral minutes
platelet plug formation: formation of platelets form a plug
blood clotting: serum makes a blot clot (clotting/ coagulation)
It prevents hemorrhage
What blood type is the universal donor
O-
What blood type can receive from anyone?
AB+
What is it called when a person has higher than normal levels of RBC
Polycythemia
These blood cells have a nuclei and full complement of other organnelles but don’t have any hemoglobin
WBC / leukocytes
Erythropoiesis is the production of RBCs, starts in the red bone marrow.
True
What is the physiology of RBC
Has no nucleus, all internal space is to transport oxygen
What is anemia
Anemia: lower then normal levels of RBCs
