We can touch our finger to our nose while our eyes are closed in part because we can sense the position and movement of our joints as well as the length of stretch in our muscles. These sensations create awareness of our body's positioning
The following receptors are most likely responsible for this ability.
A) nociceptors
B) proprioceptors
C) exteroceptors
D) interoceptors
B
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High carbon dioxide levels and low pH in blood of the carotid arteries will stimulate
A. baroreceptors to activate the vasomotor center. B. chemoreceptors to activate the vasomotor center. C. baroreceptors to activate the cardioinhibitory center and inhibit the cardioacceleratory center. D. chemoreceptors to inhibit the vasomotor center. E. baroreceptors and chemoreceptors to activate the cardioinhibitory center and inhibit the vasomotor center.
Which of the following sets of cranial nerves all carry preganglionic parasympathetic (general visceral efferent) fibers?
A) IV, V, VII, X B) III, V, VII, X C) III, VII, IX, X D) VII, VIII, IX, X E) VIII, IX, X, XI
The figure illustrates a detailed drawing of the neuromuscular junction. What does "E" represent?
A. Synaptic vesicles B. Sarcolemma C. Presynaptic terminal D. Postsynaptic membrane E. Synaptic cleft
Explain the feedback mechanism involved in true labor. Indicate the components of the feedback system (for example, identify the control center), their responses to stimuli, and the nature of the response (is it positive or negative feedback?)
What will be an ideal response?