Exam (elaborations)
PSIO 305 Exam 3 Questions and Answers (Latest Update ) PSIO 305 Exam 3 Questions and Answers (Latest Update )
- Course
- Institution
PSIO 305 Exam 3 Questions and Answers (Latest Update )
[Show more]
Content preview
PSIO 305 Exam 3 Questions and Answers(Latest Update 2024-2025)
Which of the following statement is true?
-PTSD is entirely genetically determined
-Monozygotic twins and dizygotic twins have the same
concordance for PTSD
-People with pre-existing hypocortisolism is more likely to
develop PTSD
-Early childhood experience does not confer PTSD
susceptability
-None of above is true - Correct Answer ✅People with pre-
existing hypocortisolism is more likely to develop PTSD
* In PTSD, E/NE and CRH levels are elevated, but cortisol level
is reduced, Low cortisol level before or shortly after the
traumatic event is predictive of
subsequent PTSD.
-Monozygotic twins to have significantly higher concordance
for PTSD than dizygotic twins—>estimated 30% heritability.
The ultimate goal of physiological stress response is to
-Remember the stressful event
-Run away from the stressor
,PSIO 305 Exam 3 Questions and Answers
(Latest Update 2024-2025)
-Fight with the stressor
-Remain alert for threat
-Maintain or re-gain homeostasis - Correct Answer ✅-
Maintain or re-gain homeostasis
*Allostasis is the process by which the body responds to
stressors in order to maintain or regain homeostasis.
During early phases of acute stress, activity increases in the
following systems except
-HPA axis
-Parasympathetic
-Sympathetic
-Cadiovascular
-Respiratory - Correct Answer ✅-Parasympathetic
Which of the following statement is true about Sympathetic
Nervous System (SNS)?
a. SNS does not affect skeleton muscle function
b. SNS causes vasoconstriction to blood vessels in skeleton
muscle
,PSIO 305 Exam 3 Questions and Answers
(Latest Update 2024-2025)
c. SNS causes vasodilation to blood vessels in skeleton
muscle
d. SNS influence skeleton muscle function by stimulating
glycogenolysis
e. c and d - Correct Answer ✅e. c and d
*SNS causes
-Heart rate increase, vasoconstriction and sodium/water
retention lead to higher blood
pressure and better blood circulation.
- Glycogenolysis, neoglucogenesis and lipolysis make more
nutrients available.
- Bronchial dilation results in more oxygen intake.
- Pupil dilation allows more sensory information to be sent to
the brain.
- Reduced digestion and bladder relaxation direct resources
and attention to the stressor.
- Increased blood flow to skeleton muscle
Which of the following types of cells can perform
phagocytosis?
, PSIO 305 Exam 3 Questions and Answers
(Latest Update 2024-2025)
-Microglia
-Ependymal cells
-Schwann cells
-Astrocytes
-Motor neurons - Correct Answer ✅-Microglia
*Function with astrocytes to protect neurons from toxic
substances.
• Protect the CNS from foreign matter through
phagocytosis, clearing out bacteria or dead/ injured cells.
• Secrete cytokines to modulate brain functions.
• Protect the CNS from oxidative stress.
Which of the following is a mixed (i.e., sensory and motor)
cranial nerve?
-Vestibulocochlear
-Optic
-Vagus
-Olfactory
-Accessory - Correct Answer ✅-Vagus
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 Allivia. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76710 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now