Which of the following does NOT deliver blood to the right atrium?

inferior vena cava
pulmonary veins
superior vena cava
coronary sinus


pulmonary veins

Anatomy & Physiology

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The concentration of a hormone in the blood can affect the number of receptors for that hormone on or in a target cell.

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

Anatomy & Physiology

Where do the citric acid cycle reactions occur?

a. cytoplasm. b. cytosol. c. inner-mitochondrial membrane. d. outer-mitochondrial membrane. e. mitochondrial matrix.

Anatomy & Physiology

The formation of organs and organ systems during the embryonic period is called ________.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

Which best describes temporal summation?

A. A synapse is stimulated a second time before the effect of a first stimulus at the synapse has terminated. B. It only refers to addition of EPSPs. C. Two synapses on different regions of a cell are stimulated at the same time. D. It always brings a postsynaptic cell to threshold. E. The size of an EPSP depends on the size of the stimulus.

Anatomy & Physiology