Human Systems And Homeostasis
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- 1.1. In negative feedback system, an organ or tissue that corrects a change is called
- A.
A: a sensor
- B.
B. a stimulus
- C.
C. an effector
- D.
A coordinating centre
- 2.Which of the following statements if false
- A.
A. a sensor B. a stimulus C. an effector D. a coordinating centre homeostatic mechanisms must allow the body to protect agains pathogens
- B.
Homeostatic mechanisms must allow the body to make repairs when injured
- C.
Negative feedback usually results in disorders and eventual death
- D.
All of the above
- 3.______ are the cells, tissues, or organs that receive the final response
- A.
Effectors
- B.
Senders
- C.
Receptors
- D.
Control center
- 4.______ feedback is the response of the system goes in the same direction as the change that initiated it to enhance the change.
- A.
Positive
- B.
Negative
- C.
Positive and negative
- D.
All the above
- 5._________ feedback regulates by changing the oppositedirection of the change that is set in motion, or restores a change
- A.
Positive
- B.
Negative
- C.
Positive and Negative
- D.
All the above
- 6.._______ is body temperature below the set point, and _______ is body temperature above the set point.
- A.
Hyperthermia, Hypothermia
- B.
Hypothermia, hyperthermia
- C.
Temperature
- 7.System defends the body against pathogens and abnormal cells
- A.
Lymphatic
- B.
Endocrine
- C.
Digestive
- D.
Respiratory
- 8._______ system breaks down food and absorbs it into the body.
- A.
Cardiovascular
- B.
Digestive
- C.
Urinary
- D.
Reproductive
- 9._______ system transports molecules throughout body in the bloodstream
- A.
Respiratory
- B.
Cardiovascular
- C.
Digestive
- D.
Lymaphatic
- 10.____ system protect body from the external environment
- A.
Integumentary
- B.
Digestive
- C.
Reproductive
- D.
Urinary
- 11.________ system provides communication through hormones in the bloodstream.
- A.
Cardiovascular
- B.
Endocrine
- C.
Lymphatic
- D.
Intequmentary
- 12._____ are two or more different tissues combined.
- A.
Complex tissues
- B.
Organ
- C.
Systems
- D.
Cells
- 13.The focus of anatomy is
- A.
Function
- B.
Structure
- C.
Function and structure
- D.
None of the above
- 14.The focus of physiology is
- A.
Function
- B.
Structure
- C.
Both of the above
- D.
None
- 15.
- Negative Feedback maintains homeostasis. The ______________ senses a disturbance in homeostasis. Then the signal is sent to the _______________, which sends a message to the ____________ that will make the change and return the body back to its set point.
- 16.Homeostasis can be defined as the existence and maintenance of a relatively constant enviroment within the body.
- A.
True
- B.
False
- 17.Negative feedback involves a constant back and forth in reactions to go in a straight line overall.
- A.
True
- B.
False
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