A&P 2 - Exam 1 - Part 5 - Physiology, Venous Return
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Blood-pumping action of respirations and skeletal muscle contractions facilitate venous return by increasing pressure gradient between ______________and _______________. | peripheral veins, vena cava
🗑
|
||||
| Blood-pumping action of ____________ and _____________ facilitate venous return by increasing pressure gradient between peripheral veins and vena cava. | respirations, skeletal muscle contractions
🗑
|
||||
| Blood-pumping action of respirations and skeletal muscle contractions facilitate venous return by increasing ___________ between peripheral veins and vena cava. | pressure gradient
🗑
|
||||
| Inspiration __________ the pressure gradient between peripheral and central veins by decreasing central venous pressure and increasing peripheral venous pressure | increases
🗑
|
||||
| Inspiration increases the pressure gradient between peripheral and central veins by __________ central venous pressure and __________ peripheral venous pressure | decreasing, increasing
🗑
|
||||
| ____________ promote venous return by squeezing veins through a contracting muscle and milking the blood toward the heart. | skeletal muscle contractions
🗑
|
||||
| Changes in ___________ change the amount of blood returned to the heart. | total blood volume
🗑
|
||||
| Capillary exchange is governed by ____________ law of the capillaries. | Starling's
🗑
|
||||
| ____________ is governed by Starling's law of the capillaries. | capillary exchange
🗑
|
||||
| At arterial end of capillary, outward ___________ pressure is strongest force; moves fluid out of ___________ and into ____________. | hydrostatic, plasma, interstitial fluid
🗑
|
||||
| At venous end of capillary, inward ________ pressure is strongest force; moves fluid into _________ from _______. | osmotic, plasma, interstitial fluid
🗑
|
||||
| _________ of fluid lost by plasma at arterial end is recovered. | 90%
🗑
|
||||
| The ___________ system recovers fluid not recovered by capillary and returns it to the _________ before it is returned to the heart. | lymphatic, venous blood
🗑
|
||||
| Mechanisms that change total blood volume most quickly are those that cause __________ to quickly move into or out of the __________. | water, plasma
🗑
|
||||
| What does ADH stand for? | anti diuretic hormone
🗑
|
||||
| _____________ decrease the amount of water lost by the body by increasing the amount of water that kidneys reabsorb from urine before the urine is excreted from the body. | ADH mechanisms
🗑
|
||||
| ADH mechanisms are triggered by input from _____________ and ___________. | baroreceptors, osmoreceptors
🗑
|
||||
| _______ released when blood pressure in kidney is low. | renin
🗑
|
||||
| What is a hormone system that regulates blood pressure and water (fluid) balance? | renin-angiotensin system
🗑
|
||||
| The release of renin leads to increased secretion of ___________, which stimulates retention of __________, causing increased retention of water and an increase in _____________. | aldosterone, sodium, blood volume
🗑
|
||||
| ___________ is an intermediate compound that causes vasocontriction, which complements the volume-increasing effects of renin and promotes an increase in overall blood flow. | angiotensin II
🗑
|
||||
| Angiotensin II is an intermediate compound that causes _________, which complements the volume-increasing effects of ___________ and promotes an increase in overall blood flow. | vasoconstriction, renin
🗑
|
||||
| What does ANH stand for? | atrial natriuretic
🗑
|
||||
| ___________ adjusts venous return from an abnormally high level by promoting the loss of water from plasma, causing a decrease in blood volume; increases urine sodium loss, which causes water to follow osmotically. | ANH mechanism
🗑
|
||||
| ANH mechanism adjusts venous return from an abnormally high level by promoting the loss of __________ from plasma, causing a ________ in blood volume; increases urine sodium loss, which causes water to follow ________________. | water, decrease, osmotically
🗑
|
||||
| Arterial blood pressure is measured with the aid of a ___________ and ____________. | sphygmomanometer, stethoscope
🗑
|
||||
| While measuring arterial blood pressure one must listen for __________ sounds as the pressure of the cuff is gradually _________. | Korotkoff, decreased
🗑
|
||||
| ___________ is the force of the blood pushing against the artery walls while the ventricles are _____________. | systolic blood pressure, contracting
🗑
|
||||
| ___________ is the force of the blood pushing against the artery walls when the ventricles are _____________. | diastolic blood pressure, relaxed
🗑
|
||||
| What is the difference between systolic and diastolic blood pressure? | pulse pressure
🗑
|
||||
| In ___________ bleeding blood escapes in spurts do to alternating increase and decrease of ___________. | arterial, arterial blood pressure
🗑
|
||||
| In ___________ bleeding blood flows slowly and steadily due to low, practically constant, pressure. | venous
🗑
|
||||
| What is the volume of blood circulating through the body per minute? | minute volume
🗑
|
||||
| Minute volume is determined by the magnitude of ___________ and __________. | blood pressure gradient, peripheral resistance
🗑
|
||||
| minute volume = pressure gradient + resistance | Poiseuille's Law
🗑
|
||||
| What is Poiseuille's Law? | minute volume = pressure gradient + resistance
🗑
|
||||
| Velocity of blood is governed by the physical principle that when a liquid flows from an area of one cross-sectional size to an area of larger size, its velocity _________ in the area with the larger cross section. | decreases
🗑
|
||||
| Blood velocity is fastest in ________, slower in ___________ and slowest in ___________ because of a greater cross sectional area. | arteries and veins, arterioles and venules, capillaries
🗑
|
||||
| The ________ is an alternate expansion and recoil of an artery. | pulse
🗑
|
||||
| The pulse reveals important information regarding ________, ________ and _________. | the cardiovascular system, blood vesssels, circulation
🗑
|
||||
| The physiological significance of the pulse is that _________ stores energy released during __________, conserving energy generated by the heart and maintaining relatively constant ______________. | expansion, recoil, blood flow
🗑
|
||||
| Alternating increase and decrease of __________ in a vessel causes a _________. | pressure, pulse
🗑
|
||||
| The elasticity of _________ walls allows walls to expand with increased pressure and recoil with decreased pressure, this causes a _________. | arterial, pulse
🗑
|
||||
| Each pulse that starts with ___________ and proceeds as a wave of expansion throughout the arteries. | ventricular contraction
🗑
|
||||
| The pulse wave generated by a ventricular contraction gradually dissipates, disappearing in the ____________. | capillaries
🗑
|
||||
| A pulse can be felt wherever an artery lies near the surface and over a bone or other ___________. | firm background
🗑
|
||||
| The __________ pulse is detectable only in large veins, most prominent near the __________. | venous, heart
🗑
|
||||
| The venous pulse is not of __________. | clinical importance
🗑
|
||||
| Blood flow shifts materials from place to place and redistributes ______ and _______. | heat, pressure
🗑
|
||||
| Blood flow is vital to maintaining ____________ of the internal environment. | homeostasis
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
K1N1V
Popular Physiology sets