chapter 1 anatomy and physiology
The ventral cavity includes which of the indicated subdivisions in the figure?
C,D,E
Type I diabetes is caused when an individual does not produce insulin. Which of the following statements regarding insulin is TRUE?
Insulin is the chemical messenger released from the pancreas when blood sugar is too high.
What is the function of serous fluid?
It enables organs, such as the heart and the stomach, to slide across cavity walls and each other without friction.
You have been asked to teach the principles of CPR to a group of teens training to be lifeguards. You use a diagram of the thoracic cavity to help you explain how chest compressions can maintain circulation. Which view of the chest would best illustrate this point?
Sagitta
Which of the following is a correct pairing of a body cavity with its contents?
The cavity at C contains the lungs.
Which of the following is a typical effector in a feedback system?
an endocrine gland
All living organisms maintain a boundary between their internal environment and the external environment. Which of the following systems functions only within the internal environment of the human organism?
circulatory system
The body cavities that protect the nervous system are located in the ________ cavity.
dorsal
Cells within the body work independently of one another and rarely have direct effects on other cells.
false
The serous membrane is a double-layered membrane created by two separate membranes.
false
Which of the following is an example of a positive feedback?
forming a platelet plug during blood clotting
The thoracic cavity contains the ________. It is found ________ to the vertebral cavity.
heart and lungs; anterior
Which of the following organs or structures would be found in the left iliac region?
intestines
Which type of serous membrane is located within the lower mediastinum?
parietal pericardium
The membrane that lines the thoracic cavity walls is the
parietal pleura
In which body cavities are the lungs located?
pleural, ventral, and thoracic
In a homeostatic control mechanism, which component monitors the environment?
receptor
Which of the following correctly describes the function of serous fluid?
reduce friction between the organs of the ventral cavity
What is the mediastinum
space between the lungs - thoracic cavity
The cruise control in a car monitors the car's speed and adjusts the accelerator as needed to maintain the speed at a set point determined by the driver. Which of the following would serve as the receptor in this feedback system?
the car's speedometer
Which of the following is an example of positive feedback?
the increase in milk production while a mother is nursing her infant
Which of the following represents activation of an "afferent" pathway?
the perception of being in a cold environment
Which of the following represents the correct order in which the components interact in a homeostatic control system?
the receptor, the control center, and the effector
The dorsal body cavity is divided into which of the following subdivisions?
the vertebral/spinal and cranial cavities
Which body cavity is further separated into other cavities?
thoracic
Generally, what is the result of the negative feedback process?
to maintain homeostasis
What is the role of the serous membranes covering some organs?
to prevent friction between the organ and body cavity wall
If a patient experiences inflammation of the membrane on the surface of the stomach, which membrane is affected?
visceral peritoneum
