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The anatomical position means the body is standing at attention with the palms facing forward and the thumbs pointing away from the body.
Embryology concerns the structural changes that occur in an individual from conception through old age
It is important for any organism to maintain its boundaries, so that its internal environment remains distinct from the external environment surrounding it
Without some sort of negative feedback mechanism, it would be impossible to keep our body chemistry in balance.
Regardless of the variable being regulated, all homeostatic control mechanisms have at least three interdependent components.
The study of the heart may incorporate many aspects of anatomy but as a whole you would say it is __________ anatomy.
An increased rate of breathing as a result of an increased buildup of carbon dioxide in the bloodstream would be best described as an example of ________.
excretion of metabolic waste
If you consider your home air conditioner in terms of homeostasis, then the wall thermostat
would be the ________.
The single most abundant chemical substance of the body, accounting for 60% to 80% of
body weight, is ________
Which of the following statements is true concerning feedback mechanisms
Negative feedback mechanisms work to prevent sudden severe changes within the body
The anatomical position is characterized by all of the following except ________.
palms turned posteriorly
Choose the anatomical topic and definition that is not correctly matched.
Cytology: study of the structures in a particular region
Homeostasis is the condition in which the body maintains ________.
a relatively stable internal environment, within limits
Choose the following statement that is not completely correct regarding serous membranes
Visceral pericardium covers the surface of the heart, and parietal pericardium lines the walls
of the heart. (it is the other way around)
Place the following in correct sequence from simplest to most complex:
1. molecules 2. atoms 3. tissues
4. cells 5. organ
2,4,1,3,5- atoms, cells, molecules, tissues, organ
Which of the following statements is the most correct regarding homeostatic imbalance
It is considered the cause of most diseases
One of the functional characteristics of life is irritability. This refers to ________.
sensing changes in the environment and then reacting or responding to them
Which of the following are survival needs of the body
nutrients, water, atmospheric pressure, and oxygen
The anatomical position is used ________.
as a standard reference point for directional terms regardless of the actual position of the body
What is a vertical section through the body, dividing it into anterior and posterior regions called?
Which of the following describes the operation of the heart and blood vessels
What does the "principle of complementarity of structures and function" mean?
What a structure can do depends on its specific form, or "structure determines
The ________ cavity contains tiny bones that transmit sound vibrations to the organ of hearing in the inner ear.
________ is explained by chemical and physical principles and is concerned with the function of specific organs or organic systems
What is the function of the serous membranes
They act to reduce friction and allow the organs to slide across cavity walls
Fully describe the anatomical position for the human body
The body is erect, arms hanging at the sides, palms forward, and thumbs pointed away
from the midline
Can lungs carry out excretory functions? Explain your answer
Yes, carbon dioxide is a metabolic waste the lungs excrete.
The higher we go in the mountains, the greater the atmospheric pressure, which causes a loss of oxygen. Comment on this statement
The statement is backwardsthe higher we go, the less atmospheric pressure, therefore
Why is anatomical terminology necessary
Anatomical terms are precise words that have limited usage, which prevents confusion
when describing the location of body parts
The ability to sense changes in the environment and respond to them is called ________.
responsiveness or irritability
Why must a normal body temperature be maintained in order for chemical reactions to be continued at life-sustaining rates?
If body temperature is too low, chemical reactions slow and eventually stop. If body
temperature is too high, chemical reactions speed up and body proteins lose their normal shape,
resulting in loss of function
What is the pathway between the receptor and the control center in the reflex pathway called?
Which feedback mechanism causes the variable to deviate further and further from its original value or range?
thymus gland, trachea, espohagus, bronchi, ends of the vencavae, beginning of the aorta
stomach, liver, gallbladder, spleen, pancreas, most of the small and large intestines, kidneys
urinary bladder, sex organs, part of the large intestine, including the cecum, appendix, rectum
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