Dental Hygienist Practice Test – Physiology

Diffusion is a physical process referring to the movement of molecules from an area of a higher concentration gradient to a lower concentration gradient.

Neutrophils are a type of white blood cells (leukocytes) which are the most abundant type of granulocytes. They are classified as granulocytes due the presence of granules in their cytoplasm.

Neutrophils (which are a type of white blood cells), are one of the first responders of inflammatory cells to help fight against infections.

Sweat is the secreted fluid that is produced from the merocrine gland.

The visceral pleura is a delicate inner layer of pleura that lines the surface of each lung.

Higher than normal levels of potassium in blood is known as Hyperkalemia

Tissues consist of a group of similar cells performing a common function

The smooth endoplasmic reticulum aides in the detoxification of toxins of which includes, drugs, carcinogens, and pesticides.

Osteoporosis is a bone disease in which thin and fragile bones arise due bone resorption occurring at a faster pace than bone deposition.

Conductivity is a property related to nerve tissue and is not relevant to muscle tissue.

The trigeminal nerve is responsible for sensation in the face allowing for functions such chewing, biting and swallowing.

Anti-A and anti-B antibodies cannot be produced by AB-positive blood type

The thyroid gland uses Iodine to make thyroid hormones including thyroxine

Answer is B – the pancreas produces insulin, but the insulin receptors on the body’s cells are resistant

During blood clot formation, vascular spasms are the first response.

Respiratory system gases travel down the partial pressure gradients from a location in which the partial pressure is higher to a location where the partial pressure is lower.

Replication is a process where a strand of DNA is copied, producing two identical DNA molecules. Replication is not a function of the digestive system.

Chronic obstructive pulmonary disease is a mixture of Chronic bronchitis and emphysema.

Peristalsis is a series of wavelike contractions of the smooth muscle that allows the movement of food through the alimentary canal

The diaphragm is innervated by the phrenic nerve which aids breathing and diaphragmatic movement.