Which of the following tissues has a matrix arranged in concentric circles around a central canal that has blood vessels running through it?
A. Hyaline cartilage
B. Elastic cartilage
C. Osseous tissue
D. Nervous tissue
E. Dense regular connective tissue
C. Osseous tissue
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Which cranial nerve innervates the sternocleidomastoid and trapezius?
A. Abducens B. Facial C. Vagus D. Accessory E. Trigeminal
) Select the statement about mixtures that is correct.
A) A solution contains solvent in large amounts and solute in smaller quantities. B) Solutions contain particles that settle out in time. C) Suspensions can change reversibly from liquid to solid. D) Suspensions are homogeneous mixtures of two or more components.
The cell body of a neuron is also called a(n) __________.
A. neuroglia B. dendrite C. nerve fiber D. neurosoma
If the connection between the SA node and AV node becomes blocked,
a. the QRS complex will be absent on an ECG b. the ventricles will beat more slowly c. the atria will beat slower d. tachycardia will occur e. both a and d will occur