The structure in which cells repeatedly divide to produce new cells that form a hair is the

A. hair matrix.
B. Merkel region.
C. hair shaft.
D. lunula.


Answer: A

Anatomy & Physiology

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The integrating centers for temperature-regulating reflexes are located in the brain stem.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

What organ(s) is(are) nervous in structure but endocrine in function?

A) gonads B) thyroid C) posterior pituitary D) anterior pituitary E) thymus

Anatomy & Physiology

Muscle cells contain numerous ________ to serve their high demand for ATP.

A. inclusions B. ribosomes C. Golgi vesicles D. mitochondria E. lysosomes

Anatomy & Physiology

Which statement is accurate?

A. Filtration dominates at the venous end of a capillary bed, and is driven by hydrostatic pressure. B. Filtration dominates at the arterial end of a capillary bed, and is driven by hydrostatic pressure. C. Filtration dominates at the venous end of a capillary bed, and is driven by osmotic pressure. D. Filtration dominates at the arterial end of a capillary bed, and is driven by osmotic pressure.

Anatomy & Physiology