Cross-bridges are formed by ________.

A) F-actin
B) troponin
C) myosin heads
D) synapses


Answer: C) myosin heads

Anatomy & Physiology

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Potassiumsecretion in the principal cells of the distal and collecting tubules is coupled to __________ reabsorption by the energy-dependent basolateral __________ pump

Fill in the blank(s) with correct word

Anatomy & Physiology

Mucus lubricates tissue

Indicate whether the statement is true or false.

Anatomy & Physiology

The ________ is the site of sperm maturation and storage.

A. epididymis B. spermatic cord C. ductus (vas) deferens D. rete testis E. seminiferous tubules

Anatomy & Physiology

Loss of balance and equilibrium can indicate damage to the:

A) trochlear nerve (IV). B) vestibulocochlear nerve (VIII). C) accessory nerve (XI). D) hypoglossal nerve (XII).

Anatomy & Physiology