Which of the following is the mechanism in which skeletal muscles assist venous return of blood to the heart?
A. Cardiac suction
B. Gravity
C. Contraction of limb muscles
D. Pressure gradient
Answer: C
Anatomy & Physiology
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Where in the figure is the periosteum located?
a) A b) C c) D d) E e) G
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The direct motor pathway originates in the
A. motor cortex of the cerebral cortex. B. superior colliculus of the midbrain. C. vestibular nuclei of the brainstem. D. reticular formation of the brainstem.
Anatomy & Physiology
Seeing multiple doctors at the same time can lead to ________.
A. loss of insurance B. carcinoma C. polypharmacy D. increased agitation
Anatomy & Physiology
A person who is HIV-positive and has a helper T (TH) cell count lower than ________ has AIDS.
A. 5,000 cells/?L B. 20,000 cells/?L C. 50 cells/?L D. 200 cells/?L E. 1,000 cells/?L
Anatomy & Physiology