The exchange of oxygen and carbon dioxide between the alveoli and blood in the lung is called:

a. cellular respiration
b. internal respiration
c. external respiration
d. breathing


c. external respiration

Anatomy & Physiology

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Answer the following statements true (T) or false (F)

1. Robert Hooke named the small structures he saw “cells” because they reminded him of small monastery rooms. 2. Organelles are suspended in the interstitial fluid of the cell. 3. Ribosomes can be found attached to mitochondria or floating freely in the cytoplasm. 4. Ribosomes contain ribose sugar. 5. Mucus is an example of a Golgi apparatus product.

Anatomy & Physiology

The somatic nervous system regulates the functions of internal organs by controlling glands, smooth muscles, and cardiac muscle

a. True b. False Indicate whether the statement is true or false

Anatomy & Physiology

A receptor potential is a voltage change caused by the opening of a receptor at a synapse.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

For ________ selection to occur, a lymphocyte must recognize and bind to an antigen.

A. natural B. positive C. negative D. immune

Anatomy & Physiology