Transportation and Respiration Flashcards
Blood transports ____, _____, and ______
oxygen, nutrients and hormones
blood also carries this main waste back to the lungs for expiration
CO2 (carbon dioxide)
The main components of the cardiovascular system include:
Heart, Blood, and Vessels
a yellowish fluid that blood cells are suspended in is called ______
Plasma
the average human body has how many litres of blood?
5
Blood makes up approximately what percentage of body weight?
7%
what are the three major functions of the cardiovascular system?
transportation, regulation, and protection
the cardiovascular system transports different components around the body. What are some of the components that are transported?
nutrients, oxygen, hormones, carbone dioxide, wastes
the cardiovascular system regulates different components in the body. What does it regulate?
pH, temperature, hormones
The cardiovascular system helps to protect the body. What things does it do in order to protect the body?
Creating blood clots, creating white blood cells to fight diseases and infections
blood is comprised of ______, ______, _______ and ________
plasma, red blood cells, white blood cells, platelets
The biology word we use for Red Blood Cells
Erythrocyte
The biology word we use for White Blood Cell
Leukocyte
The biology word we use for platelets
thrombocytes
Erythrocytes have this shape. What is the purpose of this shape?
Biconcave; it increases the surface area of the cell
Erythrocytes and leukocytes are produced where in the body?
Bone Marrow
Name two hereditary Blood Disorders.
Hemophilia and Sickle Cell Disease
What is Anemia?
an iron deficiency. RBC will appear smaller and more pale than normal
What is sickle cell anemia?
a hereditary blood disorder. It changes the shape of RBC and makes them sticky. Can cause blood clots
White blood cells make up what percentage of blood?
~1%. It can double when sick
Plasma makes up what percentage of blood?
~55%
Red blood cells make up what percentage of blood?
~45%
What are the 5 types of leukocytes?
Basophils, Eosinophils, lymphocytes, monocytes, neutrophils
What is the name of the process in which Leukocytes engulf pathogens?
Phagocytosis
Platelets are important for what process?
coagulation
What two factors prevent clots from forming inside uninjured blood vessels?
the smoothness of the inner wall of the vessels and anticoagulants
What are the 4 major blood groups?
A, B, AB, and O
What is a person’s blood type is determined by?
the presence or absence of antigens on the surface of RBC
What is an Antigen?
A protein on the surface of a RBC. Can cause an immune response
What is an Antibody?
Proteins in the blood that are suspended in plasma. They bind to antigens to destroy them
People with blood type A have what type of antigens?
A antigens
People with blood type A have what type of antibodies?
Anti-B Antibodies
People with blood type B have what type of antigens?
B Antigens
People with blood type B have what type of antibodies?
Anti-A Antibodies
People with blood type AB have what type of antigens?
A and B antigens
People with blood type AB have what type of antibodies?
none!
People with blood type O- have what type of antigens?
none!
People with blood type A have what type of antibodies?
Anti-A and Anti-B antibodies
what is an Rh factor?
an antigen that will determine positive or negative blood types
What is agglutination?
an antigen-antibody reaction that creates clumps in blood when wrong types are mixed
Which blood type is a universal donor?
Type O-
what three elements make up the circulatory sustem?
heart, blood vessels, blood
Blood from the pulmonary vessels transports blood where? why?
from the heart to the lungs and back, in order to be oxygenated and remove CO2 from the body
Blood from the systemic vessels transports blood where? why?
from the heart to the tissues in all parts of the body and back, in order to deliver oxygen to the tissues and remove CO2 wastes
what types of blood vessels are in the body?
arteries, capillaries, and veins
What is the purpose of arteries
Carries blood away from the heart. Transports oxygen and nutrients
What is the purpose of veins?
carries blood towards the heart, to transport CO2 and wastes
what is the largest artery in the body?
Aorta
what special structures do veins have?
Veins have valves in them to prevent backflow of blood
What are capillaries?
Thin, permeable vessels. This is the location that gas and waste/nutrient exchanges are happening
What is the name of the tough membrane that surrounds the heart?
pericardium
What is the name of the structure that separates the left and right sides of the heart?
Septum
Name the pathway of blood through the heart starting at the Vena Cava
Vena Cava > Right Atrium > Right Ventricle > Pulmonary Artery > LUNGS > Pulmonary Veins > Left Atrium > Left Ventricle > Aorta
Which node is the pacemaker of the heart?
the Sinoatrial Node (SA Node)
What is systole?
a part of the heartbeat cycle where the ventricles contract to push blood out of the heart
what is diastole?
a part of the heartbeat cycle where the heart is at rest. Blood will fill the ventricles at this stage
What chemical regulator tells the body to increase heartrate to lower CO2 levels?
Noradrenaline
what chemical regulator tells the body to slow the heartrate?
acetylcholine
What is blood pressure caused by?
the force of blood pushing on artery walls
what is considered a normal blood pressure?
120/80
Name the causes of increased blood pressure
exercise, hypertension, aging, diet, lifestyle
What is the name for the narrowing of the arteries from plaque?
Atherosclerosis
Name the two respiratory system requirements
Respiratory surface and moist environment
Name the structures in the Upper Respiratory Tract
Mouth, Nasal cavity, pharynx, larynx, trachea, uvula
Exchange of oxygen and CO2 between the air and blood
external respiration
exchange of oxygen and CO2 between blood and cells
internal respiration
chemical reactions that use oxygen to break down food molecules to get chemical energy for cell functions. Takes place in the cells
Cellular Respiration
What are the three functions of the nasal cavity
Air is Cleaned, Moistened, and warmed
Name the structures in the Lower Respiratory Tract
Bronchi, Bronchioles, Alveoli ducts, Alveoli
What muscles are used for breathing?
Intercostal and Diaphragm
Explain Inhalation
ribs move upwards and outward. Diaphragm pulls down to allow lungs to expand, and pull air in to lungs
Explain Exhalation
Ribs move inward and downward. Diaphragm pushes up to force air out of the lungs
Breathing is controlled by what part of the brain?
Medulla Oblongata
What do arterial chemoreceptors detect?
pH and CO2 levels
Which type of blood vessel has thick walls in order to withstand high pressure?
Artery
Blood vessels that allow diffusion of gases through their thin walls are the
capillaries
The main function of capillaries is to?
The main function of capillaries is to
The function of an artery is to
transport blood away from the heart.
The blood vessel that carries blood from the lungs to the heart is the
pulmonary vein
if you are an O+ blood type, you can safely receive what blood type(s)?
O+, O-
if you are an O- blood type, you can safely receive what blood type(s)?
Only type O- is compatible!
if you are an A+ blood type, you can safely receive what blood type(s)?
O+, O-, A+, A-
if you are an A- blood type, you can safely receive what blood type(s)?
O-, A-
if you are an B+ blood type, you can safely receive what blood type(s)?
O+, O-, B+, B-
if you are an B- blood type, you can safely receive what blood type(s)?
O-, B-
if you are an AB+ blood type, you can safely receive what blood type(s)?
All the blood types are compatible!
if you are an AB- blood type, you can safely receive what blood type(s)?
O-. A-, B-, AB-
the membrane that surrounds the lungs is called the ________
Pleura