chapter 12- 14 quizzes

As CSF circulates, ________ between it and the interstitial fluid of the CNS is unrestricted between and across the ependymal cells. perfusion diffusion convection osmosis conduction

diffusion

The layer of connective tissue that surrounds individual axons within a peripheral nerve is termed the metaneurium. endoneurium. epineurium. perineurium. subneurium.

endoneurium.

The epidural space contains cerebrospinal fluid. lymph. connective tissue and blood vessels. denticulate ligaments. blood.

connective tissue and blood vessels.

The midbrain contains the headquarters of the ________, a specialized component of the reticular formation that controls alertness and attention. cardiovascular control center tectum tegmentum reticular activating system respiratory rhythmicity center

reticular activating system

Visceral reflex arcs can bypass CNS neurons in ________ reflexes. short long both short and long neither short nor long

short

All of the following are visceral effectors except glands. smooth muscles. adipocytes. cardiac muscle. skeletal muscles.

skeletal muscles.

There are ________ pairs of cranial nerves. 12 31 6 2 22

12

________ is the term used to describe the crossing over of a tract to the side of the nervous system opposite to where the axons originated. Coordinating Ascending Relaying Descending Decussation

Decussation

Tina falls while climbing a tree and lands on her back. Her frightened parents take her to the emergency room, where she is examined. Her knee-jerk reflex is normal and she exhibits a plantar reflex (negative Babinski reflex). These results suggest that Tina has injured one of her ascending nerve tracts. Tina has injured one of her descending nerve tracts. Tina suffered no damage to her spinal cord. Tina has a spinal injury in the cervical region. Tina has a spinal injury in the lumbar region.

Tina suffered no damage to her spinal cord.

Specialized ganglionic sympathetic neurons that release hormones into the bloodstream are found within the intramural ganglia. collateral ganglia. brainstem. chain ganglia. adrenal glands.

adrenal glands.

Jane suffers from chronic seizures and in order to control the problem undergoes surgery in which the fibers of the corpus callosum are cut. As a result of this surgery she would likely be unable to speak. analyze by touch an object in her right hand. recognize written words. move her left arm. touch her nose with her eyes closed.

analyze by touch an object in her right hand.

The white matter of the cerebellum forms the vermis. arbor vitae. pyramid. folia. cerebellar peduncles.

arbor vitae.

Sympathetic nerves stimulate gastric secretion. allow us to relax, rest, and recover. control swallowing. are bundles of postganglionic fibers that innervate organs within the thoracic cavity. provoke feelings of sympathy.

are bundles of postganglionic fibers that innervate organs within the thoracic cavity.

Mary is in an automobile accident and suffers a spinal cord injury. She has lost feeling in her lower body. Her doctor tells her that swelling is compressing a portion of her spinal cord. Which part of her cord is likely to be compressed? descending tracts in the cervical region of her spinal cord. ascending tracts in the lumbar region of her spinal cord. the anterior white commissures. descending tracts in the lumbar region of her spinal cord. ascending tracts in the cervical region of her spinal cord.

ascending tracts in the lumbar region of her spinal cord.

The cells that cover the outer surfaces of CNS capillaries cells are the lymphocytes. microglia. leukocytes. monocytes. astrocytes.

astrocytes.

A certain drug decreases heart rate by blocking a receptor on cardiac pacemaker cells. This drug probably binds to ________ receptors. alpha-1 adrenergic alpha-2 adrenergic nicotinic cholinergic muscarinic cholinergic beta-1 adrenergic

beta-1 adrenergic

Mary accidentally ate poisonous mushrooms that contain muscarine. What would not occur? diarrhea feeling of euphoria and increased energy constriction of respiratory passageways constriction of the pupils reduction in heart rate

feeling of euphoria and increased energy

Sympathetic activation leads to all of the following except increased release of insulin. increase in alertness. vasoconstriction to digestive organs. vasodilation to skeletal muscle. increased heart rate.

increased release of insulin.

The celiac ganglia do not innervate the spleen. pancreas. liver. stomach. intestines.

intestines.

Reflexes that activate muscles on the same side of the body as the stimulus are called bilateral. contralateral. antilateral. collateral. ipsilateral.

ipsilateral.

A viral disease that destroys the neuronal cell bodies of the anterior gray horn will interfere with position sense. lead to muscle weakness or paralysis. block autonomic regulation. mainly interfere with crude touch and temperature sense. interfere with communication from one side of the spinal cord to the other.

lead to muscle weakness or paralysis.

Divisions of the cerebral hemispheres that are named after the overlying skull bones are fissures. sinuses. lobes. sulci. gyri.

lobes.

Bill contracts a viral disease that destroys cells in the posterior gray horns in his spinal cord. As a result, which of the following would you expect? problems with moving his legs loss of sensation in his torso uncontrollable sweating of his feet problems with moving his arms inability to breathe

loss of sensation in his torso

The white matter of the spinal cord is mainly myelinated axons. nodes of Ranvier. unmyelinated axons. Schwann cells. neuroglia.

myelinated axons.

The ________ division of the autonomic nervous system is known as the "rest and digest" division. visceral sympathetic somatomotor thoracolumbar parasympathetic

parasympathetic

The myotatic reflex is also known as the ________ reflex. reciprocal crossed extensor stretch flexor tendon

stretch

The statement "Its postganglionic axons always use acetylcholine as the neurotransmitter" is true only for the sympathetic nervous system. not true for either the parasympathetic or sympathetic nervous systems. true only for the somatic nervous system. true only for the parasympathetic nervous system. true for both the parasympathetic and sympathetic nervous systems.

true only for the parasympathetic nervous system.

Difficulty in swallowing may be a sign of damage to which cranial nerve(s)? vagus vagus and glossopharyngeal glossopharyngeal facial trochlear

vagus and glossopharyngeal

Integrative centers concerned with the performance of complex processes are restricted to either the left or the right hemisphere. These complex processes include all of the following except understanding spatial relationships. vision. speech. writing. mathematical computation.

vision.

Reflexes can be classified according to all of the following except the motor response. whether they are sensory or motor. where information processing occurs. the complexity of the neural circuit. where they are initiated.

whether they are sensory or motor.