Human Anatomy and Physiology Practice Test 4

The epidermis contains specialized receptors involved in the sensation of touch.

The cellular organelle responsible for digesting exhausted cell com ponents is the ____________.

When the radius of the resistance vessels is increased, which of the following is increased?

Renin is secreted by

Which of the following is least likely to contribute to the beneficial effects of angiotensin-converting enzyme inhibitors in the treatment of heart failure?

Deoxyribonucleic acid is:

In the presence of vasopressin, the greatest fraction of filtered water is absorbed in the

Site of Meissner's corpuscles (type of nerve ending)

The sympathetic nervous system mediates:

Calcitonin is produced by the thyroid gland.

The cell body of the neurone acts as a receptor site for nerve impulses

Osteocytes are involved in bone resorption.

Layer of dead cells

Orthostatic hypotension due to a malfunction in the baroreceptor reflex was diagnosed in a 65-year-old man who had been experiencing frequent episodes of syncope as he got out of bed in the mornings. Activation of the baroreceptor reflex

If the concentrations of solutes in the extracellular fl uid and intracellular fl uid are equal, the cell is in an _________ solution.

The dermis contains which of the following?

The main respiratory control neurons

Which cells produce the pigment that contributes to hair colour?

In a patient with a plasma pH of 7.10, the [HCO3 - ]/[H2 CO3 ] ratio in plasma is

Which of the following characteristics is the same for the nervous and endocrine systems?