This cross section of skin shows general cutaneous receptors. What kind of receptor does number 5 indicate?
A. Free nerve ending
B. Krause bulb
C. Lamellated corpuscle
D. Tactile disc
E. Root hair plexus
C
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Answer the following statements true (T) or false (F)
1. The photoreceptor cells are sensitive to damage from light. 2. Both the cornea and the lens are vascular. 3. The optic disc is the location where the optic nerve leaves the eyeball. 4. Sour taste receptors are stimulated by hydrogen ions of acidic food substances. 5. The fluid contained within the membranous labyrinth is called perilymph.
The energy content of a food or similar substance is measured by a process called ________.
Fill in the blank(s) with the appropriate word(s).
Acinar cells of the exocrine pancreas secrete
(a) glucagon (b) lysozyme (c) insulin (d) plasma protiens (e) proteases
Where are the ganglia of the parasympathetic nervous system located?
A) near the cells or organ being innervated by parasympathetic postganglionic neurons B) close to the spinal cord C) near the parasympathetic preganglionic neuron D) close to the brain