Question

1. which of the following would you expect to occur if you found an extremely large thymus gland in an adult human? 3.6 a) an unusual immune system b) high levels of ca2+ in the blood c) a high metabolic rate d) no \fight - or - flight\ reaction 8. a substance that is released from an endocrine gland and travels through the blood to find its target or effector cell is classified as a(n)________. 3.1 a) neurotransmitter b) enzyme c) synaptic signal d) hormone 9. what are the two main hormones secreted by the ovaries? 3.6 a) estrogen and progesterone b) testosterone and estrogen c) progesterone and testosterone d) adh & prolactin 10. where is the thyroid located? 3.6 a) posterior to stomach b) anterior of neck c) on the occipital lobe d) superior to the kidneys 11. which endocrine gland is responsible for regulating our melatonin levels? 3.6 a) parathyroid glands b) pineal gland c) hypothalamus d) thalamus

Explanation:

1. The thymus gland is important for the immune - system development. An unusually large thymus in an adult may lead to an unusual immune system.
2. Hormones are released from endocrine glands and travel through the blood to target cells.
3. The ovaries secrete estrogen and progesterone as their main hormones.
4. The thyroid gland is located anterior of the neck.
5. The pineal gland regulates melatonin levels.

Answer:

1. a) an unusual immune system
2. d) Hormone
3. a) Estrogen and Progesterone
4. b) Anterior of neck
5. b) pineal gland