A negative feedback mechanism will cause _____ if blood pressure drops.
What will be an ideal response?
an increase in heart rate, stroke volume, and vasoconstriction
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In intervertebral joints, which ligament connects the laminae of adjacent vertebrae?
A. Ligamentum nuchae B. Interspinous ligament C. Posterior longitudinal ligament D. Ligamentum flavum E. Anterior longitudinal ligament
Within the ear, tiny hairlike receptors are stimulated by sound and conduct the signal to the brain via the vestibulocochlear nerve.
Answer the following statement true (T) or false (F)
What usually causes a myocardial infarction (heart attack)?
What will be an ideal response?
How do lymphatic capillaries differ form blood capillaries?
A. Lymphatic capillaries do not have a basement membrane. B. Simple squamous epithelial cells of lymphatics overlap with loose attachments. C. Lymphatic capillaries are more permeable than blood capillaries. D. Lymphatic capillary epithelium act as one-way valves preventing movement of fluid back into interstitial spaces. E. All of the choices are ways lymphatic capillaries differ from blood capillaries.