Most sympathetic postganglionic fibers secrete the neurotransmitter ____________________, whereas all parasympathetic postganglionic fibers secrete the neurotransmitter ____________________

Fill in the blank(s) with correct word


norepinephrine (noradrenaline), acetylcholine

Anatomy & Physiology

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The largest vessels in the neck are usually the _________________________.

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

Anatomy & Physiology

The "cleanup" cells are located in the ________ layer of alveolar membrane.

A. surfactant B. epithelial C. interstitial space D. capillary endothelium

Anatomy & Physiology

In the photomicrograph of a portion of thick skin shown below, which layer is the stratum basale?

a) A b) B c) D d) E e) F

Anatomy & Physiology

When pain signals originating from visceral structures are perceived to be coming instead from the skin, the phenomenon is called ________ pain

Fill in the blank with correct word.

Anatomy & Physiology