Biological Clock 2

Question 1

In dark, pineal gland secretes _ , while presence of light suppresses it

Answer 1

Melatonin

Question 2

Melatonin influences activity of number of _ glands

Answer 2

Endocrine

Question 3

Relationship between activity of pineal gland and _

Answer 3

Seasonal affective disorder

(SAD)

Question 4

Presence of melatonin reduces activity of the _

Answer 4

Suprachiasmatic nuclei

Question 5

Damage to _ causes circadian rhythm to be lost

Answer 5

Suprachiasmatic nuclei

Question 6

Diseases of _ cause disorders of normal patterns such as sleep

Answer 6

Hypothalamus

Question 7

Synchronization of the body with the day night clock involves stimulation of _ to activate clock

Answer 7

Suprachiasmatic nuclei

Question 8

And action of _ to turn day-night cycle clock off

Answer 8

Pineal gland

Question 9

These specialized areas of brain regulate timing of events such as sleep, wake, _ and _

Answer 9

Eating

Body temp

Question 10

Pineal gland secretes _ in response to signals from hypothalamus

Answer 10

Melatonin