All fibers of the trapezius muscle are innervated by the __________.

A. scapular nerve
B. spinal accessory nerve
C. axillary nerve
D. coxal nerve


Answer: B. spinal accessory nerve

Anatomy & Physiology

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A membrane attack complex is a protein grouping that

A.  triggers phagocytosis of a target cell by a nearby macrophage or neutrophil. B.  forms a channel in the target cell membrane  that causes cytolysis. C.  links a pathogen to a red blood cell so that it is carried to the liver or spleen. D.  stimulates basophils to attack a multicellular parasite in the body.

Anatomy & Physiology

An action potential in a presynaptic neuron induces opening of voltage-gated ____________________ channels in the synaptic knob, which triggers exocytosis of synaptic vesicles

Fill in the blank(s) with correct word

Anatomy & Physiology

Which of the light micrographs in the figure below shows the type of epithelial tissue whose functions include filtration, diffusion, osmosis, and secretion in serous membranes?

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

Anatomy & Physiology

What substance is administered during an asthmatic attack to decrease resistance by dilating the airways?

a. angiotensin b. histamine c. epinephrine d. norepinephrine

Anatomy & Physiology