Which of the following is NOT a component of saliva?

A. Water
B. The enzyme salivary amylase
C. Hydrochloric acid
D. Mucus


Answer: C

Anatomy & Physiology

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What effect would a chemical that blocks voltage-gated sodium ion channels in a neuron's plasma membrane have on its membrane potential?

A) The membrane potential would become more positive because more sodium ions would leave the cell. B) The membrane potential would become more negative because more sodium ions would leave the cell. C) The membrane potential would become more positive because more sodium ions would enter the cell. D) The membrane potential would become more negative because more sodium ions would enter the cell. E) The membrane potential would not change because sodium could not enter the cell.

Anatomy & Physiology

Neutrophils are __________ specialists; they engulf and destroy bacteria intracellularly

Fill in the blank(s) with correct word

Anatomy & Physiology

From the heart to body tissues, which of the following sequences of vessels is correct?

A. Elastic artery, arteriole, muscular artery, capillary B. Arteriole, muscular artery, elastic artery, capillary C. Distributing artery, muscular artery, medium artery, capillary D. Elastic artery, muscular artery, arteriole, capillary E. Muscular artery, arteriole, elastic artery, capillary

Anatomy & Physiology

Asthenia means _____.?

A) ?into B) ?nature C) ?weakness

Anatomy & Physiology