When arterioles constrict, it raises arterial blood pressure and increases the volume of forward flow into the veins, while constriction in veins reduces forward flow by decreasing pressure in the atria.
Answer the following statement true (T) or false (F)
False
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The axons of primary sensory neurons make synaptic connections with
A. posterior root ganglia of spinal nerves. B. secondary neurons in the CNS. C. secondary neurons in the PNS. D. thalamic neurons.
A urinary blockage can be caused by __________ or stones
Fill in the blank(s) with correct word
Contraction of smooth muscle requires:
A. myosin light-chain phosphorylation B. Ca++-dependent activation of calcineurin C. binding of Ca++ to troponin C D. an action potential in the smooth muscle cell E. inhibition of Rho kinase
The membrane of a contractile cardiac muscle cell contains
A. fast voltage-gated sodium channels and slow voltage-gated calcium channels. B. fast voltage-gated sodium channels and fast voltage-gated calcium channels. C. slow voltage-gated sodium channels and fast voltage-gated calcium channels. D. slow voltage-gated sodium channels and slow voltage-gated calcium channels.