Exam (elaborations)
Bios 255 Midterm/Finals Exam – Questions & Answers
Bios 255 Midterm/Finals Exam – Questions & Answers
[Show more]
Content preview
Bios 255 Midterm/Finals Exam – Questions &Answers
Which of the typical blood vessels has a thin tunica tunica media dominated
by collagen fibers? ✔️Ans - veins
Capillaries surrounding the choroid plexus is of which type? ✔️Ans -
Fenestrated capillaries
Blood flow through a capillary bed is passed by what structure? ✔️Ans -
Atriovenous Anastomosis
Blood flows toward the heart in the veins by? ✔️Ans - -With the aid of
contractions of the adjacent skeletal muscles.
-Valves in the veins prevent the backflow of the blood
-Pressure at the venules is higher than the pressure at the venae cava
As the blood flows from venules toward the heart, what increases? ✔️Ans -
Resistance
Blood volume is decreased by what two hormones? ✔️Ans - ANP & BNP
Which of the following is not a vasoconstrictor?
-Prostagladin
-Thromboxones
-Nitric Oxide ✔️Ans - Nitric Oxide
Vasodilation is achieved by adrenergic receptors. True or False ✔️Ans -
False
Baroreceptors are found in what sinus? ✔️Ans - Carotid Sinuses
Which of the typical blood vessels has thick tunica media dominated by
smooth muscle cells and elastic fibers? ✔️Ans - Arteries
Femoral artery is a type of what artery? ✔️Ans - Muscular Artery
, Capillaries that have a complete lining are called what? ✔️Ans -
Continuous Capillaries
Blood flow through a capillary is regulated by what? ✔️Ans - Precapillary
Sphincter
As the blood flows from the aorta towards the cappilaries what increases?
✔️Ans - Resistance
Pressure gradient of water causes osmosis. True or False ✔️Ans - False
Which of the following is NOT a vasodilator? ✔️Ans - Prostagladin
Venous reserve is used during extreme blood loss. True or False ✔️Ans -
True
Chemoreceptors are found in what? ✔️Ans - Aortic Bodies
Venous valves allow blood to flow in BOTH directs. True or False. ✔️Ans -
False
The normal heart sounds are caused by what? ✔️Ans - The closure of the
heart valves
The left ventricular wall of the heart is much thicker than the right wall in
order to do what? ✔️Ans - Pump blood against a greater pressure
Ventricular depolarization corresponds to what complex? ✔️Ans - QRS
Complex
Blood within the pulmonary veins returns to the heart in what location?
✔️Ans - Left Atrium
When the heart rate is at 75, the duration of one cardiac cycle is how long?
✔️Ans - 0.8 seconds
Cardiac muscle cells are like skeletal muscle cells in that they all have what?
✔️Ans - Striation
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Studyhall. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$14.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67163 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now