The ________ are calcium channels in cardiac contractile cells. Opening them causes ________.

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


ryanodine receptors; calcium-induced calcium release

Anatomy & Physiology

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Why is the citric acid cycle called a cycle? What substances enter the cycle, and what substances leave it?

What will be an ideal response?

Anatomy & Physiology

B lymphocytes (B cells) and T lymphocytes (T cells) play an important role in the adaptive defense system

Indicate whether the statement is true or false

Anatomy & Physiology

The stage in a cell's life cycle in which the cell performs its normal functions and prepares for division is called

A) prophase. B) metaphase. C) interphase. D) telophase. E) anaphase.

Anatomy & Physiology

Which herbal supplement has been used as a mild tranquilizer in dogs?

a. valerian b. saw palmetto c. ginseng d. St. John's Wort

Anatomy & Physiology