Midterm Chapter 1-2

Question 1

Homeostasis

Answer 1

Ability to maintain relatively stable internal conditions even though the outside world is changing

Question 2

Negative feedback

Answer 2

Net effect of response is to shut off original stimulus or reduce intensity
Ex. Body temp, heart rate, blood pressure, breathing rate, blood levels of glucose, oxygen, carbon dioxide, minerals

Question 3

Positive feedback

Answer 3

Net effect increases the original stimulus and pushes the variable farther from the original value
Ex. Blood clot, labor

Question 4

Cranial cavity

Answer 4

Space inside skull

Question 5

Spinal cavity

Answer 5

Space where spinal cord is located

Cranial to end of vertebral column

Question 6

Thoracic cavity

Answer 6

Holds heart and lungs

Question 7

Abdominal cavity

Answer 7

Contains stomach, liver, intestines, and other organs

Question 8

Pelvic cavity

Answer 8

Contains reproductive organs, bladder, rectum