When the diaphragm contracts, thoracic volume increases and pressure in the lungs decreases.

a. true
b. false


Answer: a. true

Anatomy & Physiology

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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.

Anatomy & Physiology

The stretch technique is the most common cat restraint technique

Indicate whether the statement is true or false

Anatomy & Physiology

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.

Anatomy & Physiology

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

Anatomy & Physiology