Which chambers contract simultaneously?

A. All chambers contract individually.
B. All chambers contract simultaneously.
C. Two atria
D. Right atrium and right ventricle


Answer: C

Anatomy & Physiology

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While watching Olympic weight lifters on television, Carl notices that on several occasions an athlete would lift the weight to his chest and then suddenly drop it. Can you offer an explanation for what might be happening?

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Which cranial nerve controls the muscles involved in chewing?

A) facial B) glossopharyngeal C) trigeminal D) vagus

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Endothelial cells within capillaries of the brain are linked to their neighbors by ______ junctions that prevent diffusion of some substances across the capillary wall

Fill in the blank with correct word.

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Which of the following is not correct pertaining to olfaction?

A) The central processes of the olfactory receptor neurons pass through foramina in the cribriform plate. B) The central processes of the right and left olfactory receptor neurons each collectively form the right and left olfactory nerve. C) The olfactory nerves terminate in the olfactory bulb, which is in contact with the orbital surface of the frontal lobe of the brain. D) The axons of secondary olfactory neurons form the olfactory tract. E) The olfactory tract terminates in the medulla.

Anatomy & Physiology