The ventral part of the medulla oblongata near the origin of the vagus nerve is the location of
A. peripheral chemoreceptors.
B. central chemoreceptors.
C. mechanoreceptors.
D. baroreceptors.
Answer: B
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A) Divide the ocular lens magnification by the objective lens magnification B) Multiply magnification of the ocular lens times that of the objective lens C) Add together the ocular and objective magnifications D) Divide the objective lens magnification by the ocular lens magnification
The long refractory period of cardiac muscle prevents tetanic contractions of the heart
Indicate whether the statement is true or false
When contracted, this muscle causes expansion of the thoracic cavity and increases pressure in the abdominopelvic cavity. Its insertion is on a central tendon.
A. External intercostals B. Transversus thoracis C. Diaphragm D. Serratus posterior inferior E. Internal intercostals
The thalamus functions as a sensory relay center in the brain.
Answer the following statement true (T) or false (F)