Immunoglobulins that are the first antibodies to be produced in response to infection are _________.

A) IgM.
B) IgD.
C) IgA.
D) IgG.
E) IgE.


A) IgM.

Anatomy & Physiology

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Which neurotransmitter is released by the preganglionic neuron at the autonomic ganglion in the diagram?

a) Norepinephrine b) Acetylcholine c) Epinephrine d) Dopamine e) Serotonin

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Which of these is a pad of fibrous cartilage within some synovial joints?

A. Meniscus B. Symphysis C. Bursa D. Intracapsular ligament

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Thalamic neurons that travel to the primary sensory cortex are ________ neurons

A) receptor B) first-order C) second-order D) third-order E) fourth-order

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Carbon dioxide ________ oxygen unloading and oxygen unloading ________ carbon dioxide transport.

A. increases; worsens B. decreases; improves C. increases; improves D. decreases; worsens

Anatomy & Physiology