BISC 230Lgx Lecture Notes - Lecture 4: Magnetic Resonance Imaging, Lightning, Ct Scan

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scarletdeer311

8 Apr 2016

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Autonomic nerves - connected to both the brain and the spinal cord a. control glands and internal organs. Sensory only (3): olfactory nerve (i) - smell, opic nerve (ii) - sight, vesibulocochlear (viii) - balance/hearing nerve. Motor only (5): oculomotor (iii) - eye movement, trochlear (iv) - eye movement, abducens - eye movement, spinal accessory - neck movement, hypoglossal - tongue. Sensory/motor (4): trigeminal (v) - facial sensaion, chewing muscles, facial (vii) - facial muscles, taste sensaion, glossopharyngeal (ix) - throat sensaion, throat muscles, vagus (x) - heart, liver, and intesines. Only owls observe time travel and find voldemort googling very scared harry. Spinal cord: controls most body movements, acts independently from brain, brain cannot stop automaic movement. Anatomy: three layers of the meninges (dura mater, arachnoid layer, pia mater) a. a. b. neuron o o o. Grey mater on the inside (reverse of the brain) Dorsal ibers == aferent, sensory info spinal cord.

Related Questions

For each of the following, match the cranial nerve with its proper embryonic origin and with the type of innervation that it carries. Answer choices may be used multiple times (one answer may be used for more than one cranial nerve).

1.	olfactory nerve:
2.	optic nerve:
3.	oculomotor nerve:
4.	trochlear nerve:
5.	ophthalmic nerve:
6.	maxillary nerve:
7.	mandibular nerve:
8.	abducens nerve:
9.	facial nerve:
10.	vestibulocochlear nerve:
11.	glossopharyngeal nerve:
12.	vagus nerve:
13.	accessory nerve:
14.	hypoglossal nerve:

a.dorsal root; special sensory; general sensory; somatic motor; postganglionic parasympathetic

b.ventral root; general sensory only

c.ventral root; somatic motor; preganglionic parasympathetic; postganglionic parasympathetic

d.ventral root; special sensory only

e.dorsal root; special sensory; general sensory; branchial motor; preganglionic parasympathetic

f.extension of brain; somatic motor only

g.dorsal root; general sensory; branchial motor; postganglionic parasympathetic

h.dorsal root; somatic motor only

i.dorsal root; special sensory; branchial motor; preganglionic parasympathetic

j.extension of brain; general sensory only

k.extension of brain; special sensory only

l.ventral root; branchial motor only

m.extension of brain; branchial motor only

n.dorsal root; special sensory only

o.dorsal root; general sensory; postganglionic parasympathetic

p.dorsal root; somatic motor; postganglionic parasympathetic

q.dorsal root; branchial motor only

r.dorsal root; special sensory; branchial motor; postganglionic parasympathetic

s.ventral root; somatic motor only

pucehound90

#1 Visceral sensory information enters the CNS on afferent fibers within

A) dorsal roots S_2 to S_4.

B) dorsal roots T_1 to L_2.

C) cranial nerves V, VII, IX, and X.

D) both B and C

E) A, B, and C

#2 Which of the following is not a function of the neuroglia?

A) support

B) memory

C) phagocytosis

D) secretion of cerebrospinal fluid

E) maintenance of blood-brain barrier

#3 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?

A) the anterior gray commissures

B) the anterior white commissures

C) the anterior gray horns

D) ascending tracts

E) descending tracts

#4 The efferent division of the peripheral nervous system innervates:

A) skeletal muscle cells

B) glandular cells

C) smoothmusdecells

D) heart muscle cells

E) all of the above

#5 Cerebrospinal fluid flows within the

A) pia mater.

B) dura mater.

C) filum terminale.

D) arachnoid mater.

E) subarachnoid space.

#6 A patient develops a tumor of a cranial nerve that leads to difficulty in speaking from a loss of

tongue movement.which cranial nerve is affected?

A) glossopharyngeal

B) vagus

C) spinal accessory

D) hypoglossal

E) trigeminal

#7 Parkinson disease is the result of

A) inadequate production of dopamine by substantia nigra neurons.

B) inadequate production of GABA by neurons in the basal nuclei.

C) weak response of the red nuclei of the mesencephalon.

D) decreased levels of acetylcholine from neurons in the substantia nigra.

E) hyperactivity of the limbic system.

#8 Based on the motor homunculus, which of the followingbody regions has the largest motor units?

A) larynx B) hands C) tongue D) face E) back

#9 If the corpus callosum is surgically cu!

A) conscious decisions are made without regard to sensations from the left side.

B) objects toudred by the left hand can be recognized but not verbally identified.

C) symptoms of the "disconnection syndrome" appear.

D) the two cerebral hemispheres operate independently.

E) all of the above

#10 The flexor reflex

A) moves a limb away from a painful stimulus.

B) is an example of a monosynaptic reflex.

C) prevents a musde from generating damaging tension.

D) usually depends on cranial neurons.

E) prevents a muscle from overstretching.

#11 The subdural space lies between

A) the dura mater and the arachnoid mater.

B) the arachnoid mater and the pia mater.

C) the endosteum and the periosteum.

D) the pia mater and the dura mater.

E) the pia mater and the subarachnoid space.

#12 _____ is a condition resulting from an inflammation of a facial nerve.

A) Cerebral palsy

B) Addison disease

C) Bell palsy

D) any of the

#12 Clusters of RER and free ribosomes in neurons are called

A) microglia.

B) neurofilaments.

C) neurofibrils.

D) Nisslbodies.

E) perikaryon.

#1 Visceral sensory information enters the CNIS on afferent fibers within

A) dorsal roots 52 to 54.

B) dorsal roots T1 to L2.

C) cranial nerves V VIL DC and X.

D) bothB and C

E) a, n, and C

#2 Which of the following is not a function of the neuroglia?

A) support

B) memory

C) phagocytosis

D) secretion of cerebrospinal fluid

E) maintenance of blood-brain barrier

#3 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?

A) the anterior gray commissures

B) the anterior white commissures

C) the anterior gray horns

D) ascending tracts

E) descending tracts

#4 The efferent division of the peripheral nervous system innervates:

A) skeletal muscle cells

B) glandular cells

C) smoothmusdecells

D) heart muscle cells

E) all of the above

#5 Cerebrospinal fluid flows within the

A) pia mater.

B) dura mater.

C) filum terminale.

D) arachnoid mater.

E) subarachnoid space.

#6 A patient develops a tumor of a cranial nerve that leads to difficulty in speaking from a loss of

tongue movement. IA/hich cranial nerve is affected?

A) glossopharyngeal

B) vagus

C) spinai accessory

D) hypoglossal

#7 Parkinson disease is the result of

A) inadequate production of dopamine by substantia nigra neurons.

B) inadequate production of GABA by neurons in the basal nuclei.

C) weak response of the red nuclei of the mesencephalon.

D) decreased levels of acetylcholine from neurons in the substantia nigra.

E) hyperactivity of the limbic system.

#8 Based on the motor homunculus, which of the followingbody regions has the largest motor units?

A) larynx B) hands C) tongue D) face E) back

#9 If the corpus callosum is surgically cu!

A) conscious decisions are made without regard to sensations from the left side.

B) objects toudred by the left hand can be recognized but not verbally identified.

C) symptoms of the "disconnection syndrome" appear.

D) the two cerebral hemispheres operate independently.

E) all of the above

#10 The flexor reflex

A) moves a limb away from a painful stimulus.

B) is an example of a monosynaptic reflex.

C) prevents a musde from generating damaging tension.

D) usually depends on cranial neurons.

E) prevents a muscle from overstretching.

#11 The subdural space lies between

A) the dura mater and the arachnoid mater.

B) the arachnoid mater and the pia mater.

C) the endosteum and the periosteum.

D) the pia mater and the dura mater.

E) the pia mater and the subarachnoid space.

#12 _____ is a condition resulting from an inflammation of a facial nerve.

A) Cerebral palsy

B) Addison disease

C) Bell palsy

D) any of the

#12 Clusters of RER and free ribosomes in neurons are called

A) microglia.

B) neurofilaments.

C) neurofibrils.

D) Nisslbodies.

E) perikaryon.

BISC 230Lgx Lecture Notes - Lecture 4: Magnetic Resonance Imaging, Lightning, Ct Scan

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