The condition where fluid compresses the heart and limits its ability to contract is called ________
A) cardiac tamponade
B) myocardial infarction
C) pericarditis
D) angina pectoris
A
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Which of the following statements accurately describes the changes in the membrane potential of a photoreceptor cell when light rays strike its photopigments?
a) The photoreceptor cell undergoes rapid depolarization. b) The photoreceptor cell undergoes hyperpolarization. c) A graded potential proportional to the intensity of the light stimulus occurs in the photoreceptor cell. d) No changes in the membrane potential occur. e) The photoreceptor cell creates action potentials at a frequency proportional to the intensity of the light stimulus.
Melanoma is a form of skin cancer that arises from melanocytes. Melanoma is most common in Caucasians between 40 and 70 years of age. Explain why Caucasians would have a greater incidence of melanoma
What will be an ideal response
The ___ of the uterus receives the embryo and provides nourishment until the placenta is formed.
A. myometrium B. perimetrium C. epimetrium D. endometrium
Bone-destroying cells known as osteoclasts are activated by the hormone ________.