Answer the following statements true (T) or false (F)
1. An abnormal mass of proliferating cells is called a neoplasm.
2. A neoplasm can either be malignant or benign.
3. A flat, scalelike epithelial cell would be called squamous.
4. Stratified squamous epithelial tissue is composed of a single layer of flat, scalelike cells.
5. Glia cells are an example of connective tissue.
1. TRUE
2. TRUE
3. TRUE
4. FALSE
5. FALSE
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An increase in heart rate is accompanied by
a. an increase in L-type Ca2+ channel activity. b. an increase in K+ flux through voltage-gated K+ channels. c. an increase in the passive movement of Na+ into cells of the SA node. d. an increase in the passive movement of K+ out of cells of the SA node. e. a combined increase in passive movement of Na+ and K+ out of the cells of the SA node.
The amount of blood pumped out of each ventricle during a single beat is the __________.
a. cardiac output b. stroke volume c. end-diastolic volume d. end-systolic volume
In a herniated disc, the ring of fibrocartilage called the ________ ruptures and the ________ oozes out
A) nucleus pulposus; lamina B) lamina; nucleus pulposus C) nucleus pulposus; anulus fibrosus D) anulus fibrosus; nucleus pulposus E) anulus fibrosus; body
Increased fluid accumulation in the cornea would result in
A. an increase in the ability to transmit light to the retina. B. a scattering of light rays. C. a decrease in the strength of the tissue. D. loss of pigment in the eye. E. blockage of light rays.