Tube-like invaginations of the sarcolemma that conduct action potentials toward the center of the muscle fiber are called _____.


Answer: Transverse tubules.

Anatomy & Physiology

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Before B cells secrete antibodies, they differentiate into ________.

A. stem cells B. T cells C. antigen-presenting cells D. macrophages E. plasma cells

Anatomy & Physiology

The skull contains ________ bones

A) 32 B) 22 C) 42 D) 12 E) 27

Anatomy & Physiology

Synthesis of plasma proteins is a major function of the

A) gallbladder. B) duodenum. C) pancreas. D) stomach. E) liver.

Anatomy & Physiology

The substantia nigra interconnects with the ________.

A. red nuclei B. tectum C. basal nuclei D. tegmentum E. reticular nuclei

Anatomy & Physiology