Fluoride treatment strengthens the

A. periodontal membrane.
B. enamel.
C. dentin.
D. pulp.


Answer: B

Anatomy & Physiology

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The most important factor in decreasing the intracellular concentration of calcium ion after contraction is

A) Active transport of calcium across the sarcolemma. B) Active transport of calcium into the sarcoplasmic reticulum. C) Active transport of calcium into the synaptic cleft. D) Diffusion of calcium out of the cell. E) Diffusion of calcium into the sarcoplasmic reticulum.

Anatomy & Physiology

The ____________________ controls breathing, heartbeat rates, and reactions to visual and auditory stimuli

Fill in the blank(s) with correct word

Anatomy & Physiology

What is the correct order of structures through which air flows into the respiratory tract?

A. Larynx; pharynx; bronchi; trachea; bronchioles B. Larynx; pharynx; trachea; bronchioles; bronchi C. Pharynx; larynx; trachea; bronchi; bronchioles D. Pharynx; trachea; larynx; bronchi; bronchioles E. Larynx; pharynx; trachea; bronchi; bronchioles

Anatomy & Physiology

The collection of pathways controlling a single joint is known as ________. The simplest reflex in this collection of pathways is the ________, which involves only two neurons: ________ neuron from the ________ and the ________ neuron to the muscle.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology