Histological examination of a slice of neural tissue reveals a bundle of nerve fibers held together by cells whose multiple processes wrap around several fibers and form a myelin sheath. The specimen is likely to be a. a nucleus. b. a ganglion. c. a nerve. d. a tract.

Obtain prepared slides of pyramidal cells of the cerebral cortex, Purkinje cells of the cerebellar cortex, and a dorsal root ganglion. As you observe them under the microscope, try to pick out the anatomical details and compare the cells. Notice that the neurons of the cerebral and cerebellar tissues (both brain tissues) are extensively branched; in contrast, the neurons of the dorsal root ganglion are more rounded. The many small nuclei visible surrounding the neurons are those of bordering neuroglia. Which of these neuron types would be classified as multipolar neurons?__As unipolar?

Choose the proper term to respond to the statements describing various brain areas. a. cerebellum, b. corpora quadrigemina, c. corpus callosum, d. hypothalamus, e. medulla, f. midbrain, g. pons, h. thalamus. 1. Region where there is a gross crossover of fibers of descending pyramidal tracts, 2. Control of temperature, autonomic nervous system reflexes, hunger, and water balance, 3. Houses the substantia nigra and cerebral aqueduct, 4. Relay stations for visual and auditory stimuli input; found in midbrain, 5. Houses vital centers for control of the heart, respiration, and blood pressure, 6. Brain area through which all the sensory input is relayed to get to the cerebral cortex, 7. Brain area most concerned with equilibrium, body posture, and coordination of motor activity.

The innermost delicate meningeal layer is the a. dura mater. b. corpus callosum. c. arachnoid mater. d. pia mater.

Which of the following is true of the autonomic, but not the somatic, nervous system? a. Neurotransmitter is acetylcholine. b. Axons are myelinated. c. Effectors are muscle cells. d. It has motor neurons located in ganglia.

More than one choice may apply. Which of the following does the blood-brain barrier prevent from entering the brain? a. Glucose b. Urea c. Nicotine d. Alcohol

Which is a normal value for percentage of body weight that is water for a young adult male? a. 73 percent, b. 45 percent, c. 50 percent, d. 60 percent.

Find a quadratic equation with integral coefficients having the given roots.

$$5 + i \sqrt { 2 } , 5 - i \sqrt { 2 }$$

Evaluate the expression without using a calculator.

$$\sin \frac { \pi } { 6 } + \cos \frac { \pi } { 6 }$$

Where might a gray matter nucleus be located? a. Alongside the vertebral column, b. Within the brain, c. Within the spinal cord, d. In the sensory receptors.

Which of the following is an example of integration by the nervous system? a. The feel of a cold breeze b. Shivering and goose bumps in response to cold c. Perceiving the sound of rain d. The decision to go back for an umbrella

Draw a free-body diagram for each of the following objects: an athlete running along a horizontal track.

An increase in BP would be caused by all of the following except a. increase in SV. b. increase in heart rate. c. hemorrhage. d. vasoconstriction of the arterioles.

Evaluate the triple integral.

$$\iiint_{D}\left(x^{2} y+y^{2} z\right) d V,$$

where D is the box $1 \leq x \leq 3,-1 \leq y \leq 1,2 \leq z \leq 4$