BIO213 Review PDF

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Review for test #4...

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Test 4 Review: 1. 2. 3. 4. 5.

The brain and the cranial nerves (PNS) The spinal nerve and spinal nerves (CNS) Reflexes Autonomic nervous system General senses

ANS REVIEW: 1. 2. 3. 4. 5. 6.

The parasympathetic division is also known as the craniosacral division. The sympathetic division produces the ‘Fight or Flight’ response. The ANS is a motor-only (efferent) system. All ANS commands originate from the hypothalamus. Which horn of the spinal cord processes visceral motor (ANS) commands? Lateral gray horn The skin is innervated by the sympathetic division. The postganglionic fiber leaves the chain ganglia. 7. The parasympathetic division has long preganglionic fibers and short postganglionic fibers. TRUE 8. Sympathetic postganglionic fibers that innervate the stomach leaves the celiac ganglion. 9. Increased alertness, increased heart rate, and sweat gland activation describes the sympathetic response. CRANIAL NERVES: 1. 2. 3. 4. 5. 6. 7. 8. 9.

The only cranial nerve to leave the head & neck region is CN X (vagus nerve). Which cranial nerve conducts most sensory information from the face? Trigeminal nerve. The hypoglossal nerve is cn XII. FALSE. Which cranial nerve conducts the most motor commands to the face (for facial expressions)? Facial Which of the following is a mixed nerve? Vagus nerve Cranial nerve IX is the glossopharyngeal nerve. There are 31 pairs of cranial nerves: FALSE. The olfactory bulb is associated with CN 1. How many pairs of cranial nerves leave the medulla oblongata? 5.

REFLEXES: 1. 2. 3. 4. 5. 6.

Which of the following is not a component of the reflex arc? Divergence. The following describe all reflexes, except inherited. There are both endocrine and neural reflexes. TRUE How many neurons must be present in a monosynaptic reflex? 2. Which is a cranial reflex? Pupillary. Intrafusal fibers are found in muscle spindles.

7. 8. 9. 10.

Driving, skiing, and skating all require acquired reflexes. TRUE The crossed-extensor reflex is polysynaptic. You are born with innate reflexes. Reflexes can be used as diagnostic tools. TRUE.

BRAIN: (motor is up front) (sensory is behind) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.

There are 6 major regions to the brain. The second largest area of the brain is called the cerebellum. The cerebrum contains 80% of the brain's neurons. FALSE All of the parts of the brain stem, except the diencephalon. All of the following connect the left and right hemisphere except the optic chiasm. The pituitary gland is attached to the hypothalamus. The hypothalamus releases hormones. TRUE. The auditory cortex is found in the temporal lobe. The arbor vitae is found in the cerebellum. The lateral ventricles are separated by the septum pellucidum. The sensory homunculus is associated with the postcentral gyrus. Which brainwave is associated with sleep? Delta. ECF is produced by the choroid plexus. FALSE. ECF stands for extracellular fluid....