Cardiovascular Anatomy
Arteries move blood ___________ the heart and Veins move blood _________ the heart.
What is away from and toward the?
The name of this heart rhythm describes a rate <60 bpm.
What is Bradycardia?
These air filled sacs located in the lungs are crucial for gas exchange.
What are Alveoli?
This is the primary transporter of carbon dioxide.
What is the bicarbonate ion?
This injury can occur to someone who is exposed to low air temperature and has low blood flow. It primarily impacts the periphery.
What is frostbite?
The primary function of capillaries is.
What is gas exchange?
As exercise intensity increases this happens to heart rate.
What is increases proportionally.
What is Spirometry?
This cardiovascular phenomenon occurs during prolonged exercise primarily in the heat and contributes to reduced stroke volume.
What is cardiovascular drift?
The primary method of heat loss during exercise in hot environments when air temperature exceeds skin temperature.
What is evaporation?
This vessel branches off the aorta and supplies blood to capillaries and delivers blood and glucose (fuel) to the heard
What are the coronary arteries?
Stroke Volume is impacted by these four factors.
What is increased venous return, increased distensibility (or stretch), increased contractility, and decreased resistance.
The oxyhemoglobin dissociation curve is used to describe __________. And is influences by ___________ and ____________.
What is how ready hemoglobin binds to and releases oxygen? And what is temperature and pH.
This part of the brain acts as the body’s thermostat and coordinates thermoregulation.
What is the hypothalamus?
Heat transfer through direct physical contact with a colder object is called this.
What is conduction?
This component of the myocardium connects cardiac muscle fibers and helps the heart contract as a single unit.
What are intercalated disks?
Name the three mechanisms the body has to assist in venous return during exercise.
What are valves, skeletal muscle pump, and respiratory pump.
What is the name of the pulmonary volume that describes volumes of a maximal inspiration and a maximal expiration.
What is vital capacity?
What is Fick's Equation? And how does it work?
What is VO2 = Q x a-vO2 difference? It uses the difference is O2 content between the arterial blood and venous blood and the amount of blood the heart pumps per minute to determine oxygen consumption
This adaptation increases heat production without muscle contractions.
What is non-shivering thermogenesis?
Name the 4 components of the hearts intrinsic conduction system.
What is the SA node, AV Node, AV bundle, and Purkinje fibers.
The Frank Starling Law states:
The strength of contraction increases in response to increased venous return.
Which law describes gas exchanges from the capillaries to the alveoli. Name and define the law.
What is Henry's Law? Henry's law states that gases dissolved in liquid are proportional to partial pressures.
This index combines temperature and humidity to estimate environmental heat stress.
What is the Wet Bulb Globe Temperature (WBGT)?
As dehydration progresses or sweat rate increases, venous pressure decreases, reducing this determinant of stroke volume.
What is End Diastolic Volume (EDV)?