What muscles, present in the ventricles, anchor the atrioventricular valves by tendon-like chords called chordae tendineae?
A) pectinate muscles B) ligamentum arteriosum
C) trabeculae carneae D) papillary muscles
Answer: D
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Blood does not enter or leave the ventricles during the period called
A. ejection. B. isovolumetric contraction. C. rapid filling. D. atrial systole. E. active and passive filling.
Neurons are a major type of cell found in nervous tissue.
Answer the following statement true (T) or false (F)
The reflex that complements a withdrawal reflex by making compensatory adjustments on the opposite side of the body receiving the stimulus is the
A) tendon reflex. B) crossed extensor reflex. C) stretch reflex. D) flexor reflex. E) reciprocal reflex.
Examples of physical barriers against pathogens include all of the following except
A) sebaceous glands. B) mucus. C) epithelia. D) epidermal layers. E) blood.