When the diaphragm contracts, thoracic volume increases and pressure in the lungs decreases.
a. true
b. false
Answer: a. true
You might also like to view...
What process does the pre-embryo undergo in order to from into a tightly grouped ball of cells?
A. Dissolution B. Meiosis C. Implantation D. Morulation E. Compaction
Select the correct statement about antigens
A) "Self-antigens" is another name for incomplete antigens. B) The largest type of antigen is called a hapten. C) One antigen may have many different antigenic determinants and may therefore cause the formation of more than one antibody. D) Only small antigens exhibit reactivity.
The stretch technique is the most common cat restraint technique
Indicate whether the statement is true or false
Which of the following is not involved in the relaxation of muscle?
a. when acetylcholine is destroyed by acetylcholinesterase. b. when there is no longer a local action potential. c. when the T tubules actively take up the Ca2+ that had been released. d. when the actin and myosin molecules are no longer bound together. e. when the troponin-tropomyosin complex slips back into its blocking position.