The volume of blood ejected from the left ventricle into the aorta each minute is called the

a) cardiac output.
b) cardiac input.
c) stroke volume.
d) heart rate.
e) pulse pressure.


a

Anatomy & Physiology

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Which of the following statements best describes how humans are infected by the malaria parasite?

A) In the hemolymph of the mosquito, the gametocytes mature, migrate to the salivary glands, and are injected into the host when the mosquito feeds. B) In the mosquito's digestive tract the parasite produces oocysts, which migrate to the salivary glands, and are injected into the host when the mosquito feeds. C) In the mosquito's digestive tract the parasite produces gametocytes, which migrate to the salivary glands, and are injected into the host when the mosquito feeds. D) In the mosquito's digestive tract the parasite develops into infective sporozoites, which travel to the salivary glands, and are injected into the host when the mosquito feeds.

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What nonspecific cells kill virus-infected cells and tumor cells by cell to cell contact?

A. B lymphocytes B. T lymphocytes C. Natural killer cells D. Mast cells

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Layers of bone that go all the way around a bone are referred to as

A) interstitial lamellae. B) radial lamellae. C) circumferential lamellae. D) longitudinal lamellae. E) concentric lamellae.

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If a section is made that separates the brainstem from the rest of the brain, the cut is between the

A) medulla oblongata and pons. B) pons and midbrain. C) midbrain and diencephalon. D) thalamus and cerebrum. E) medulla oblongata and spinal cord.

Anatomy & Physiology