In the initiation of muscle fiber contraction, calcium ions bind to tropomyosin, exposing

active sites on actin for cross-bridge formation.

Indicate whether the statement is true or false


FALSE

Anatomy & Physiology

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The main pacemaker of the heart is the __________.

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

Anatomy & Physiology

Which of the following is an example of a lipid??

A) ?Carbohydrate B) ?Protein C) ?Fat D) ?Enzyme

Anatomy & Physiology

The primary target of the human immunodeficiency virus is the ________.

A. helper T lymphocyte B. memory cell C. macrophage D. plasma cell

Anatomy & Physiology

What is MALT?

A) Lymphatic tissue specialized in filtering out yeast microbes B) Process that describes the gradual atrophy of the thymus C) Areas or nodules or lymphatic tissue associated with mucous membranes D) An area of fermentation resulting from infection

Anatomy & Physiology