Endocrine System

Question 1

Function of the endocrine system?

Answer 1

• SECRETE HORMONES directly INTO the BLOODSTREAM to be carried to the SPECIFIC target organ and tissues

Question 2

Structures of the endocrine system?

Answer 2

• Pituitary
• Thyroid
• Parathyroid
• Thymus
• Adrenals
• Pineal
• Pancreas
• Gonads (ovaries/testes)

Question 3

What are hormones?

Answer 3

• CHEMICAL SUBSTANCES secreted by the endocrine (ductless) glands iNTO the blood…CONTROLLING the activities of the tissue or organ

Question 4

Hormones can be classified as…

Answer 4

• PROTEINS and STEROIDS

Question 5

What do hormones regulate?

Answer 5

• Hormones regulate METABOLIC PROCESSES involving CARBS, PROTEINS and FATS

Question 6

What are the 2 types of receptors?

Answer 6

• Membrane receptors: OUTER SURFACE of the membrane e
• Intracellular receptors: INSIDE the cells

Question 7

3 Mechanisms to Control Hormone Secretion

Answer 7

• NEGATIVE FEEDBACK CONTROL: information is sent back to the gland that secreted it
• BIORHYTHMS: rhythmic attention of a hormone’s rate of secretion (jet lag and night shifts can alter these)
• CNS

Question 8

The Pituitary Gland and Hypothalamus are connected by what?

Answer 8

• They are connected by a network of tiny capillaries called HYPOTHALAMIC-HYPOSEAL PORTAL SYSTEM