Cardiovascular Physiology

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Cardiovascular Physiology Exam Questions with correct answers provided What is the intrinsic conduction system of the heart responsible for? - ☑ ☑ It is responsible for initiating and conducting electrical impulses that regulate heartbeats. What is the role of the sinoatrial node in the heart? - ☑ ☑ It acts as the pacemaker, setting the pace for the heart with the fastest depolarization rate. Where is the sinoatrial node located? - ☑ ☑ In the right atrial wall. What does the t...

Cardiovascular Physiology Exam Questions with correct answers provided What does the autonomic nervous system contribute to the cardiovascular system in terms of regulation ☑ Sympathetic contributes to circulation Parasymnpatheitc contributes to heart funciton What does the sympathetic system contribute to cardiovascular system ☑ ☑ It increases the activity of the heart by increasing HR and its strength and volume of pumping Sympathetic nerves also carry large numbers of vasoconstri...

Physiology Exam 3 Cardiovascular with 100% Correct Solutions

Cardiovascular Physiology Exam Questions with correct answers provided name the key components of blood and their proportions -formed elements (erythrocytes 45%, leukocytes < 1%), cell fragments (platelets < 1%), plasma 55% name and describe the key measure of blood composition. use in an example (M vs F) - hematocrit: % of total blood volume comprised by erythrocytes (45% M, 42% F) what are the main components of plasma? -water (over 90%), ions, nutrients, wastes, gases, hormones, ...

Cardiovascular Physiology Exam Questions with correct answers provided name the key components of blood and their proportions - ☑ ☑ formed elements (erythrocytes 45%, leukocytes < 1%), cell fragments (platelets < 1%), plasma 55% name and describe the key measure of blood composition. use in an example (M vs F) - hematocrit: % of total blood volume comprised by erythrocytes (45% M, 42% F) what are the main components of plasma? - ☑☑ water (over 90%), ions, nutrients, wastes, g...

Cardiovascular Physiology Exam Questions with correct answers provided what are endothermic amniotes? - ☑ ☑ animals that are able to maintain a fairly constant body temperature through internal heat production -> separates mammals from birds/reptiles why are physiological changes required at birth? - ☑ ☑ need specific and fully organized neurological/ reflex paths 9 physiological changes required at birth? - 2. endocrine function 3. epidermal function (barriers) Loss of plac...

Cardiovascular Physiology Exam Questions with correct answers provided Big Picture: The Cardiovascular System Provides 3 Fundamental Functionalities for Meeting the Increased ATP Demands of Exercise - ☑ ☑ 1.) Transport 2.) Distribution 3.) Transfer of 02 & energy substrate to working and recovering muscle -venous return carries CO2 to the lungs Flow - ☑☑The fundamental phenomenon in the CV system and is always dependent on a gradient to power it Key Levels & Flows in the CV Syst...

Cardiovascular Physiology Exam Questions with correct answers provided arteries- ☑ Carry oxygenated blood away from the heart blood vessels - ☑ ☑ A general term for any or all of the 3 types of vessels-- arteries, veins and capillaries capillaries - ☑ ☑ Microscopic vessel through which exchanges take place between the blood and cells of the body circulatory system - ☑ ☑ Another name for the cardiovascular system deoxygenated - ☑ ☑ Without oxygen. After blood has unloade...

Cardiovascular Physiology Exam Questions with correct answers provided what two events are involved in heart contraction? -1. conduction system starts and propagates an action potential 2. cardiac muscle cels fire action potentials and contract (first in atria then ventricles) where is the SA node? -in right atrium inferior to superior vena cava opening where is the AV node located? -base of the right atrium where is the AV bundle located? -interventricular septum where are the right and...