Which of the following statements is true of the cerebral cortex?
A. Sensations from the feet would be on the most inferior
area of the somatesthetic cortex.
B. Areas of the body with the greatest density of receptors
will have larger areas on the somatesthetic cortex.
C. The hands have a very small area on the motor cortex.
D. The left side of the motor cortex controls muscles on the
left side of the body.
Answer: Areas of the body with the greatest density of receptors will have larger areas on the somesthetic cortex
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Biology Chapter 8
- What is the first structure of a reflex arc?
- Nerves that serve the leg come from the
- Nerves that serve the arm come from the _______ plexus.
- Reflex arcs
- Which of the following spinal nerve groups is incorrect?
- If the dorsal root of a spinal nerve were to be cut, the individual would
- There are ___ pairs of cranial nerves and ____ pairs of spinal nerves.
- Which cranial nerve allows one to make facial expressions and secrete tears?
- Which cranial nerve is NOT involved with eye movements?
- Which cranial nerve is vital for the functioning of the visceral organs?
- Which of the following cranial nerves is NOT purely sensory?
- Eye movements would be compromised by
- A cranial nerve with only sensory fibers is the
- Which tracts are NOT part of the extrapyramidal motor tracts?
- The extrapyramidal tracts
- Most corticospinal tracts decussate in the
- Nerve fibers of the ___________ tract decussate in the spinal cord and are involved in regulating fine motor movements.
- Sensory impulses for fine touch, precise pressures, and body movement are carried by the _____ tracts.
- In the spinal cord, the gray matter is arranged into _____ and the white matter is arranged into ______.
- In the spinal cord, the gray matter is on the _____ and the white matter is on the ___.
- Neurons of the ventrolateral preoptic nucleus (VLPO) of the hypothalamus release _______ that promotes sleep.
- What condition is caused by a sudden failure of the RAS?
- Which of the following RAS neurotransmitters stimulates the cerebral cortex for wakefulness?
- The right side of the brain controls motor activity on the left side of the body because nerve tracts decussate in the
- Which of the following is NOT a vital function of the medulla oblongata?