The events leading to skeletal muscle contraction are initiated by the neurotransmitter __________.

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


acetylcholine or ACh

Anatomy & Physiology

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Immunity that is genetically determined and present at birth is called ________ immunity

A) active B) natural passive C) passive D) auto E) innate

Anatomy & Physiology

The average human adult skeleton has how many bones?

Anatomy & Physiology

This figure shows the muscles of respiration. What muscle does number 2 indicate?

A. External intercostal B. Scalene C. Internal intercostal D. Transversus thoracis E. Diaphragm

Anatomy & Physiology

Increasing stimulus strength results in an increase in the _____ of action potentials.

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

Anatomy & Physiology