Recitation Week 14

Question 1

How would you define acrophase?

Answer 1

the synchronization of one cycle with another, or another temporal event

Question 2

Describe the difference between arrhythmic, free-running and entrained.

Answer 2

1) Arrhythmic = no consistency in actions/behaviors in terms of time. so no fixed amount of time or no fixed times specific actions are taken
2) Free-running = consistent actions are taken for specific periods of time, but the times those events happen shift over time
3) Entrained = consistent action for specific periods of time with the events happening around consistent times

Question 3

Please describe the RHT pathway

Answer 3

1) Retina ->
2) SCN ->
3) PVN ->
4.10) Anterior Pituitary Gland -> 4.11) Which releases ACTH to Adrenal Cortex -> 4.12) which releases CORT and affects metabolism
4.21) SNS/PNS (autonomic nervous system) -> 4.22) Which affects Pineal Gland which releases Melatonin |> 4.23) Which affects feeding behavior

Question 4

Please describe how and what genes are affected during the day

Answer 4

1) CLOCK & BMAL 1 = ON!
2) CRY & PER = Expressed