Digitalis, A drug used to treat heart failure, increases the strength of heart contractions. On which phase of the cardiac cycle does this likely have the greatest effect?
Systole or diastole
Systole
Anatomy & Physiology
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Why is the inferior region of the shoulder joint most vulnerable to dislocation?
Anatomy & Physiology
A freckle is a concentrated spot of this pigment
A) carotene B) keratin C) cyano D) melanin
Anatomy & Physiology
What happens during gastrulation?
A. The embryo implants in the wall of the uterus. B. The chorion disintegrates. C. The placenta becomes functional. D. The amnionic fluid appears. E. The three primary germ layers are formed.
Anatomy & Physiology
The organelles responsible for organizing microtubules that are a part of the mitotic spindle are called
A. microvilli. B. nucleoli. C. centrioles. D. vesicles. E. cilia.
Anatomy & Physiology