T lymphocytes mature in the ________, a gland in the mediastinum.
Fill in the blank(s) with the appropriate word(s).
thymus
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Cumulative damage from reactive ________ is thought to be a major factor in aging
A) nitrogen B) double bonds C) isotopes D) free radicals E) helium
Answer the following questions true (T) or false (F)
1. You reached into the freezer to grab a piece of cold ice. This temperature information is carried to the brain by the posterior columns of white matter in the spinal cord. 2. The corticospinal tracts are descending (motor) tracts located in the spinal cord. 3. The two major ascending tracts in the spinal cord carry somatic sensory stimuli to the third-order neurons in the thalamus of the brain.
The paired cartilages that articulate with the superior border of the cricoid cartilage and help with opening and closing the glottis to produce sound are the ________ cartilages
A) thyroid B) tracheal C) cuneiform D) corniculate E) arytenoid
Gap junctions with intercalated discs serve to transfer cell to cell ionic currents.
Indicate whether the statement is true or false