Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
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

Chapter 19

Blood Vessels - hormones, shock, hypertension

QuestionAnswer
the adrenal medulla releases ___ and ___, which... epinephrine & noepinephrine - increases CO by vasoconstriction
angiotensin II is generated by ___ renin released from kidnets
what does angiontensin II do? vasoconstriction - stimulates release of aldosterone & ADH
angiontensin II ___ pressure and resistance increases
atrial natriuretic peptide causes.... vasodilation
what does atrial natriuretic do? antagonizes aldostoreone - increases excretion of sodium & water
antidiuretic hormone known as ADH can also be called ___ vasopressin
ADH stimulates ___ conservation of water by kidneys
direct renal mechanisms... alters how much fluid comes out blood through kidneys
what is hypertension? increase in systolic pressure (higher than 140) & diastolic (over 90)
pre-hypertensive means ___ pressure valves between 120-140 and 80-90
pre-hypertensive strains the ___ over years cardiovascular system
pre-hypertensive causes the heart to ____ causing ___ which..... push against greater resistance - hypertrophy - eventually weakens
pre-hypertensive accelelrates ___ atherosclerosis
primary hypertension is caused by ___ unknown causes - drugs, lifestyle changes
what causes secondary hypertension? a known medical condition such as kidney disease, endocrine disorders, etc
circulatory shock is any condition where ___ blood vessels are inadequately filled (blood doesn't circulate normally)
this type of shock is caused by pump failure. cardiogenic shock
___ shock is due to blood or fluid loss hypovolemic
in hypovolemic shock...what happens? heart rate increases to raise BP - intense vasoconstriction
what is vascular shock? extreme vasodilation
vascular shock can be caused by... allergic reaction, septic shock or ANS failure
the kidneys and abdomen ____ blood flow during exercise decrease
the heart, skeletal muscles and skin ___ blood flow during exercise increase
what happens to the brain blood flow during exercise? it stays constant
in active hyperemia, what happens to blood flow? it increases in response to greater metabolic activity
cerebral vessels __ when mean arterial pressure declines dilate
as mean arterial pressure rises, cerebral vessels ___ constrict
the brain is vulnerable to sudden extreme changes in pressure. fainting occurs when____ mean arterial pressure falls below 60 mmHg
increased capillary permeability is caused by... pressure goes over 160mmHg
hysrostatic pressure is the ___ ___ pushing pressure - pushes fluid across membrane
the "pulling pressure" is known as __ osmotic pressure
in osmotic pressure, what happens? water is drawn from tissue into capillary bed
extrinsic controls ___ during exercise decrease
what happens to mean arterial pressure and cardiac output during exercise? it increases - while resistance decreases
Created by: Mariahj25