Lower motor neurons of the spinal cord have their cell bodies in:
a. anterior grey horn
b. lateral grey horn
c. posterior grey horn
d. anterior white column
Answer: a. anterior grey horn
You might also like to view...
The molecule DNA contains a five-carbon sugar called
A) glucose. B) fructose. C) maltose. D) ribose. E) deoxyribose.
Which of the following will happen to a human cell in a hypotonic solution?
A. I?t will swell B. I?t will maintain its normal volume C. I?t will burst D. I?t will crenate
Graded potentials
A) produce an effect that increases with distance from the point of stimulation. B) produce an effect that spreads actively across the membrane surface without diminishing. C) may be either a depolarization or a hyperpolarization. D) are often all-or-none. E) always cause repolarization.
A patient has presented with an abnormal reflex response. In response to a flash of light, the patient will move his eyes towards the light but not turn his head. Which of the following may explain the condition?
A. The patient has damage to his trochlear nerve (IV), accentuating his ability to move his eyes and rendering the need to move the head unnecessary. B. The patient has damage to the oculomotor nerve (III), affecting his ability to coordinate eye movement and head movement. C. The patient has damage to the accessory nerve (XI), affecting his ability to reflexively turn his head. D. The patient has damage to the occipital lobe of the cerebrum, causing him to be blind to the flash of light.