CMN 2180 Study Guide - Fall 2018, Comprehensive Midterm Notes - Canada, Popular Culture, Ventricular System
12 Oct 2018
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Department
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CMN 2180
MIDTERM EXAM
STUDY GUIDE
Fall 2018
Pop Quizzes-Part 1
Pop quiz 1:
1. The circulating fluid in the circulatory system of an octopus is haemolymph= false (blood)
2. The resistance of the circulatory system is likely to be higher in a crab than in a clownfish= false
3. Which is better: open or closed circulatory system= complex animals can direct blood flow using
closed system; smaller animals benefit from an open system
Pop quiz 2:
1. Order these animals from lowest to highest (systemic) blood pressure: crab (open circulatory
sste, od has pup ad gas ehage sste efore the…, or sake reptiles so has
geeral patter, ut does’t have oplete divisio of vetriles…, roodile reptile; has
division of blood vessels), crow (has 2 pumps)
2. Sketch the AP of a pacemaker cardiac muscle fibre (label sketch). Where in the heart might you
find this type of cardiac muscle cell? Indicate the pacemaker potential. What is the physiological
significance of the pacemaker potential? What causes the pacemaker potential (what is the
underlying mechanism)?
• Refer to sheet
Pop quiz 3:
*Use of turbulent blood flow to measure blood pressure?
• They blow off the cuff (cuts off blood flow); noise of turbulent blood flow (from systemic
blood pressure) appears and then disappears (diastolic bp)
1. HR in a human in which vagal tone predominates will be > 100 bpm = false (parasympathetic
system is vagal tone; so it should be less then 100 bpm)
2. Administration of atenolol (a B1 blocker) will cause HR in a resting BIO3302 student to increase
= False (b1 blocker causes HR to fall)
3. Vagal tone tends to lower the force of contraction of the heart = False (parasymp only
innervates SA node; only effects HR, not force of contraction; by changing HR, frank sterling
effect comes into play which may effect HR and thus contraction force)
4. HR and SV both double. In the absence of any change in resistance, arterial blood pressure will
be increased or decreased by what factor? = 4
5. Doubling vessel length increases resistance more than or the same as or less than halving vessel
radius. = resistance doubles with a doubled length; halving radius increases resistance 16 fold
Pop quiz 5:
-apuo.myreviewroom.com
1. At a capillary, filtration is driven by fluid pressure whereas absorption reflects the osmotic
pressure gradient = true
2. The Frank-Starling hypothesis describes fluid circulation at a capillary = false (FS hypothesis for
venous return and stroke volume; fluid circulation at a capillary described by Starling-Landis)
3. Sympathetic innervation of pre-capillary sphincters regulates blood flow within a capillary bed =
false (problem is sympathetic innervation (smooth muscle in arterioles); pre-cap sphnctrs
regulated …
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find more resources at oneclass.com
4. *Whereas alpha1 adrenergic receptors cause vasoconstriction, vasodilation is achieved by
activating beta1 adrenergic receptors = false (B1 receptors found in heart; blood vessels contain
a1 and b2)
5. Baroreceptors monitor blood pressure = true
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
What causes the pacemaker potential (what is the underlying mechanism): refer to sheet. = 4: doubling vessel length increases resistance more than or the same as or less than halving vessel radius. = resistance doubles with a doubled length; halving radius increases resistance 16 fold. What is the nature of the space that is in issue in the case? (physical space; not virtual) What is the nature of the space where the indecency occurred. **once you learned the actual case, you can apply that in finding out what the implications are of labaye for thinking about indecency and the virtual environment. You can understand how the rules/laws are implicated in this case. While reading the criminal code of indecency, the results are based on previous cases, which was less subjective and more objective. Stating harm examples are not enough; have a functioning example of harm; Develop and operationalize social harm (what that concept specifically means)
