Human Anatomy and Physiology Practice Test 4

Thermoregulation by the skin involves cooperation between numerous positive feedback mechanisms

____________ are structures within cells that perform cellular functions.

The ____________ are the 'powerhouses' of the cell because they produce energy in the form of ATP.

The gustatory receptors are located in the

Saltatory conduction is much faster than nerve impulses that move along unmyelinated membranes.

Certain cells of the epidermis are important components of the immune system.

In comparing uncompensated respiratory acidosis and uncompensated metabolic acidosis which one of the following is true?

The autonomic nervous system (ANS) controls voluntary activities.

An ____________ is a protein in the immune system.

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

Layer of dead cells

If the clearance of a substance which is freely filtered is less than that of inulin,

Muscle contraction occurs via the sliding fi lament mechanism.

In the eye, light rays are refracted onto:

The skin fi bres are arranged in bundles known as:

Skin colour is determined by which pigment?

Pacinian corpuscles in the subcutaneous layer are temperature-sensitive.

Which of the following neurotransmitters are correctly matched with an autonomic pathway?

Glucagon is produced in the pancreas by which cells?

The principal actions of thyroid hormones increase the basal metabolic rate.