ANSC 3270 Midterm 1
Study online at https://quizlet.com/_ejr6un
1. What is a stressor? something that disrupts homeostasis in an organ-
ism and elicits a stress response
2. What is a stress response involves activation of multiple physiological sys-
tems during perceived danger
3. How does a stress response manifest as a fight, flight or freeze response
4. What is short-term stress response enhance survival of an organisms by restoring
designed to do physiological homeostasis
5. How is a stress sensory input relayed through neural transmitters, endocrine hormones
to the brain (3) and immune cytokines
6. How is variation in stress response determined by genetics, environmental factors,
determined by (3) and how are they and gene-by-environment interactions.
regulated
Regulated by epigenetics mechanisms
7. What is a resilient animal to stress they are able to resist, cope, or completely recover
from perceived danger
8. What happened if an animal is sensi- can lead to hyper-responsiveness to the same
tized to a stressor stressor or other stressors during subsequent ex-
posure
9. What are 3 examples of physical stres- Heat, cold, climate change
sors
10. What is an example of a chemical mycotoxins
stressor
11. What is an example of a biological
stressor (4)
, ANSC 3270 Midterm 1
Study online at https://quizlet.com/_ejr6un
bacteria, fungi, virus, parasite
infectious stressor
12. What is an example of a physiological weaning
stressor
13. What was found to be the most in- Jul, Aug, Sept. The parasite can grow in the growing
fectious time of the year for the grass, which the sheep eat, and get infected from
haemonchus contortus in european
sheep? Why?
14. What is Q0 Potential infection pressure
15. How does CO2 relate to infection pres- believed that as CO2 increases, so does the infec-
sure tion pressure
16. The time of day regulates what 2 Herpes and influenza
viruses in mice
17. How does a viral infection worsen in when circadian rhythm is abolished by disruption
the body of a key circadian clock gene
18. What is the key circadian clock gene BMAL 1
19. How does BMAL 1 change in humans blood concentration decreases in the winter, and
during the year can be correlated to the increased risk of infection
during the winter
20. What is the most critical component matching animals to their environment.
to animal management in regards to Miss-match can lead to stress and may increase
stressors risk of disease
21. Cavalier King Charles Spaniel
, ANSC 3270 Midterm 1
Study online at https://quizlet.com/_ejr6un
What is the most appropriate breed
for a dog in an apartment
22. what is the best dairy breed if you Holstein/Gir cross
want to increase dairy production in
Brazil
23. What breed would you use to in- Gulf Coast
crease resistance to gastrointestinal
parasites in sheep?
24. What fish species grows well in warm tilapia
water
25. What are the 2 different stress axes 1. sympathetic-adrenal-medullary (SAM)
2. hypothalamic-pituitary-adrenal-cortex (HPA)
26. What is the difference between activa- SAM activates within seconds, and HPA is delayed
tion times of SAM and HPA to minutes and peaks within hours
27. Describe the steps of the SAM axis (2) 1. immediate release of Acetylcholine (ACH) from
sympathetic nerve fibres to the adrenal medulla
2. in the adrenal, Nicotinic ACH receptors (NiAchR)
triggers the secretions of epinepherine (EPI) and
norepinephrine (NEPI)
28. How do catecholamines mediate their via tissue and cell-specific expression of alpha and
physiological responses beta adrenergic receptors
29. How do concentrations of circulating they are under the influence of melatonin (from
catecholamines vary throughout the the pineal gland), andrenocorticotropin hormone
day and season (4 including where (ACTCH, anterior pituitary), glucocorticoid (adrenal
they came from) cortex), and gonadal steroids
Study online at https://quizlet.com/_ejr6un
1. What is a stressor? something that disrupts homeostasis in an organ-
ism and elicits a stress response
2. What is a stress response involves activation of multiple physiological sys-
tems during perceived danger
3. How does a stress response manifest as a fight, flight or freeze response
4. What is short-term stress response enhance survival of an organisms by restoring
designed to do physiological homeostasis
5. How is a stress sensory input relayed through neural transmitters, endocrine hormones
to the brain (3) and immune cytokines
6. How is variation in stress response determined by genetics, environmental factors,
determined by (3) and how are they and gene-by-environment interactions.
regulated
Regulated by epigenetics mechanisms
7. What is a resilient animal to stress they are able to resist, cope, or completely recover
from perceived danger
8. What happened if an animal is sensi- can lead to hyper-responsiveness to the same
tized to a stressor stressor or other stressors during subsequent ex-
posure
9. What are 3 examples of physical stres- Heat, cold, climate change
sors
10. What is an example of a chemical mycotoxins
stressor
11. What is an example of a biological
stressor (4)
, ANSC 3270 Midterm 1
Study online at https://quizlet.com/_ejr6un
bacteria, fungi, virus, parasite
infectious stressor
12. What is an example of a physiological weaning
stressor
13. What was found to be the most in- Jul, Aug, Sept. The parasite can grow in the growing
fectious time of the year for the grass, which the sheep eat, and get infected from
haemonchus contortus in european
sheep? Why?
14. What is Q0 Potential infection pressure
15. How does CO2 relate to infection pres- believed that as CO2 increases, so does the infec-
sure tion pressure
16. The time of day regulates what 2 Herpes and influenza
viruses in mice
17. How does a viral infection worsen in when circadian rhythm is abolished by disruption
the body of a key circadian clock gene
18. What is the key circadian clock gene BMAL 1
19. How does BMAL 1 change in humans blood concentration decreases in the winter, and
during the year can be correlated to the increased risk of infection
during the winter
20. What is the most critical component matching animals to their environment.
to animal management in regards to Miss-match can lead to stress and may increase
stressors risk of disease
21. Cavalier King Charles Spaniel
, ANSC 3270 Midterm 1
Study online at https://quizlet.com/_ejr6un
What is the most appropriate breed
for a dog in an apartment
22. what is the best dairy breed if you Holstein/Gir cross
want to increase dairy production in
Brazil
23. What breed would you use to in- Gulf Coast
crease resistance to gastrointestinal
parasites in sheep?
24. What fish species grows well in warm tilapia
water
25. What are the 2 different stress axes 1. sympathetic-adrenal-medullary (SAM)
2. hypothalamic-pituitary-adrenal-cortex (HPA)
26. What is the difference between activa- SAM activates within seconds, and HPA is delayed
tion times of SAM and HPA to minutes and peaks within hours
27. Describe the steps of the SAM axis (2) 1. immediate release of Acetylcholine (ACH) from
sympathetic nerve fibres to the adrenal medulla
2. in the adrenal, Nicotinic ACH receptors (NiAchR)
triggers the secretions of epinepherine (EPI) and
norepinephrine (NEPI)
28. How do catecholamines mediate their via tissue and cell-specific expression of alpha and
physiological responses beta adrenergic receptors
29. How do concentrations of circulating they are under the influence of melatonin (from
catecholamines vary throughout the the pineal gland), andrenocorticotropin hormone
day and season (4 including where (ACTCH, anterior pituitary), glucocorticoid (adrenal
they came from) cortex), and gonadal steroids
