Which of the following is involved in the coloring of the skin?

A) lamellated corpuscles
B) Merkel cells
C) Ruffini corpuscles
D) tactile corpuscles
E) melanocytes


E) melanocytes

Anatomy & Physiology

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Addition of length to a long bone primarily occurs at the:

a. epiphyseal side of the epiphyseal plate b. articular cartilage c. diahyseal side of the epiphyseal plate d. periosteum

Anatomy & Physiology

What is the function of the transverse tubules in a skeletal-muscle fiber?

A. They store the calcium ions that are the main source of activation for the cross-bridge cycle. B. They form the Z lines that mark the end of each sarcomere. C. They allow action potentials to propagate deep into the center of skeletal muscle cells. D. They manufacture and store ATP. E. They run in parallel with the myofibrils, and have abundant Ca2+-ATPase proteins for pumping Ca2+ back into the sarcoplasmic reticulum.

Anatomy & Physiology

Descent of the testes is stimulated by the ________

A) presence of the X chromosome B) presence of estrogens C) presence of testosterone D) presence of Y chromosome E) absence of the X chromosome

Anatomy & Physiology

Which of the following quantities is calculated the same as pressure?

A. stress B. strain C. shear D. tension

Anatomy & Physiology