____________________ is a protein complex made of three polypeptide units: one binds to ____________________, one binds to actin, and a third can bind with Ca2+

Fill in the blank(s) with correct word


Ttroponin; tropomyosin

Anatomy & Physiology

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When cholinergic receptors are stimulated,

A) sodium ions enter the postsynaptic neuron. B) sodium ions leave the postsynaptic neuron. C) chloride ions enter the postsynaptic neuron. D) chloride ions leave the postsynaptic neuron. E) norepinephrine deactivates acetylcholine.

Anatomy & Physiology

Where in the brain does your consciousness reside?

What will be an ideal response?

Anatomy & Physiology

Decreases in blood pressure turn _____ the thirst center of the brain

A. on B. off

Anatomy & Physiology

Under ordinary circumstances which of the following blood components is of no physiological significance?

A) Biocarbonate B) Carbaminohemoglobin C) Nitrogen D) Chloride

Anatomy & Physiology