During muscle contraction, myosin cross bridges attach to active sites of:

A) myosin filaments
B) actin filaments
C) Z lines
D) thick filaments
E) the H zone


B) actin filaments

Anatomy & Physiology

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Discuss the evolutionary connection between bilateral symmetry and cephalization in animals

What will be an ideal response?

Anatomy & Physiology

Which of the following surrounds some (or many) axons, providing insulation that increases conduction speed?

Anatomy & Physiology

Sensory impulses from all of the senses except ________ converge on the thalamus and synapse in at least one of its nuclei.

A. vision B. taste C. touch D. olfaction E. hearing

Anatomy & Physiology

In what phase of the sexual response cycle does ejaculation occur?

a. excitation phase b. resolution phase c. plateau phase d. orgasmic phase e. seminal phase

Anatomy & Physiology