The site of gas exchange in mammals is at the blind-ended sacs called __________

Fill in the blank with the correct word.


Answer: Alveoli.

Anatomy & Physiology

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Which type of cell gives rise to osteoclasts?

A. Osteoblast B. Monocyte C. Osteogenic cell D. Haversian cell E. Lymphocyte

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Which type of receptor initiates the inhalation (or Hering-Breuer) reflex?

A. Central chemoreceptors B. Proprioceptors C. Peripheral chemoreceptors D. Baroreceptors

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The ________ system's main functions are support, movement, and protection.

A. endocrine B. nervous C. skeletal D. cardiovascular

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Having extra digits is termed

A) polyuria. B) polydactyly. C) polyploidy. D) polydipsia.

Anatomy & Physiology