Lecture 2

Question 1

What organ acts a control center for homeostatic control of many systems in the body

Answer 1

The brain

Question 2

What is the role in a feedback system of stretch sensitive nerve cells in the cervix

Answer 2

Receptors

Question 3

Homeostasis is the condition in which the body maintains…

Answer 3

A relatively stable internal environment within limits

Question 4

The 2 systems most responsible for maintains homeostasis are the…

Answer 4

Endocrine and nervous system

Question 5

Compare negative and positive feedback systems

Answer 5

Negative- counter stimuli that move homeostasis beyond normal limits
Positive- enhance stimuli until a certain point is reached to return to homeostasis

Question 6

Headaches, nausea and anxiety are examples of symptoms or signs?

Answer 6

Symptoms

Question 7

Hormonal or electrical signals are sent from the control center to the?

Answer 7

Effectors

Question 8

Give an example of a positive feedback system

Answer 8

Sexual intercourse/ labor/ blood clotting

Question 9

What hormone lowers blood glucose level

Answer 9

Insulin

Question 10

What helps core body temperature increase

Answer 10

Construction of skin blood vessels
Increase in cellular respiration
Shivering
Thyroid hormone induced increase in metabolic rate