When macula densa cells experience increased Na+ concentration in the filtrate, they respond by

A. increasing aldosterone secretion.
B. increasing afferent arteriole constriction.
C. decreasing renin secretion.
D. decreasing urine production.
E. increasing renin secretion


Answer: C

Anatomy & Physiology

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An individual who could trace a picture of a bicycle with his or her finger but could not recognize it as a bicycle is most likely to have sustained damage to the ________.

A) calcarine cortex B) primary visual area C) visual association area D) lateral geniculate body

Anatomy & Physiology

Which statement lists all of the components of the respiratory membrane?

A. The respiratory membrane is composed of the thin layer of surfactant in the alveoli, the single squamous cell alveolar wall, and the single cell capillary wall. B. The respiratory membrane is composed of the thin layer of water with surfactant in the alveoli and the single cell capillary wall. C. The respiratory membrane is composed of the thin layer of water in the alveoli, the single squamous cell alveolar wall, and the single cell capillary wall. D. The respiratory membrane is composed of the thin layer of water with surfactant in the alveoli, the single squamous cell alveolar wall, and the single cell capillary wall.

Anatomy & Physiology

Layers of bony matrix at the outer and inner surfaces of bone and covered by the periosteum and the endosteum are

A) concentric lamellae. B) osteons. C) Haversian systems. D) interstitial lamellae. E) circumferential lamellae.

Anatomy & Physiology

Why are the bones of young children much more flexible than those of the elderly?

What will be an ideal response?

Anatomy & Physiology