Introduction Part II (Exam 1)

Question 1

How many pairs of cranial nerves?

Answer 1

12

Question 2

How many pairs of spinal nerves?

Answer 2

31

Question 3

_____ efferent neurons innervate skeletal muscle.

Answer 3

Somatic

Question 4

_____ efferent neurons innervate cardiac muscle, smooth muscle, and gland.

Answer 4

Autonomic

Question 5

Transmit signals from receptors to CNS.

Answer 5

Sensory Neurons

Question 6

____ located in the brain stem.

Answer 6

Cranial Nerves

Question 7

31 spinal nerves include:

Answer 7

8 cervical, 12 thoracic, 5 lumbar, 5 sacral, 1 coccygeal

Question 8

Ends at L2 level.

Answer 8

Conus Medularis

Question 9

Extends from the inferior end of spinal cord.

Answer 9

Cauda Equina

Question 10

Spinal Nerve Root Afferent/Sensory

Answer 10

Dorsal Root(Posterior)

Question 11

Spinal Nerve Root Efferent/Motor

Answer 11

Ventral Root (Anterior)

Question 12

Region of skin innervated by sensory afferent fibers from an individual spinal nerve.

Answer 12

Dermatome

Question 13

Group of motor muscles innervated by a spinal nerve.

Answer 13

Myotome

Question 14

Cervical Plexus

Answer 14

C1-4

Question 15

Innervates the diaphragm.

Answer 15

Phrenic Nerve C3-5

Question 16

Brachial Plexus

Answer 16

C5-T1

Question 17

5 Primary Nerves of the Brachial Plexus

Answer 17

Musculocutaneous (forearm flexors) , Axillary (Deltoid) , Radial (Wrist/Finger Extensors) , Median (Forearm Pronators, Wrist/Finger Flexors) , Ulnar (Flex, Abd/Add Fingers).

Question 18

Lumbosacral Plexus

Answer 18

L1-S3

Question 19

6 Nerves of Lumbosacral Plexus

Answer 19

Obturator (Hip Abd) , Femoral (Quads) , Superior Gluteal (Hip Abd, Glut Min, TFL), Inferior Gluteal (Glut Max), Common Peroneal (Peroneals, Ant .Tib (Deep), Tibial (Post. Tib, Flexor Dig Hall/Longus)

Question 20

A simple, local interruption of conduction affecting the myelin only. (Hand Falling Asleep)

Answer 20

Neurapraxia

Question 21

Nerves segments proximal to injury site degenerates back to the ___ Node of Ranvier it encounters.

Answer 21

First

Question 22

Changes in nerve distal to injury.

Answer 22

Wallerian Degeneration

Question 23

Axons grow ___mm per day or ___ inch per month.

Answer 23

1

Question 24

If cell body is destroyed?

Answer 24

No regeneration.

Question 25

Myelin can take ___ days to ___ year to reform.

Answer 25

10 days, 1 year.

Question 26

Separated in L and R sides, connected by thick band of nerve fibers called?

Answer 26

Corpus Collosum

Question 27

Adheres to the brain. Thin, high vascularized. Houses Circle of Willis.

Answer 27

Pia Mater

Question 28

Thin web-like layer. Avascular.

Answer 28

Arachnoid Mater

Question 29

Layer against the skull. Tough fibrous layer.

Answer 29

Dura Mater

Question 30

Sulci

Answer 30

Depressions

Question 31

Gyri

Answer 31

Ridges

Question 32

L Hemisphere

Answer 32

Verbal, Analytical

Question 33

R Hemisphere

Answer 33

Nonverbal, Artistic

Question 34

Allows communication between hemispheres.

Answer 34

Corpus Collosum

Question 35

Thought, Conscious, Motor Center, Language, Reasoning, Perception

Answer 35

Cerebral Cortex Functions

Question 36

Four ventricles of brain contain.

Answer 36

CSF

Question 37

Where is the CSF produced ?

Answer 37

Choroid Plexus

Question 38

Dominant Hemisphere

Answer 38

Left

Question 39

____% are left hemisphere dominant.

Answer 39

95%, Right Handed

Question 40

Masses of gray matter deep within the cerebrum.

Answer 40

Basal Ganglia

Question 41

Area where major sensory tracts and the visual/auditory pathways synapse.

Answer 41

Diencephalon

Question 42

Which nervous system includes cranial nerves, spinal nerves, and ganglia?

Answer 42

PNS

Question 43

Primary Motor Cortex

Answer 43

Frontal Lobe

Question 44

Responsible for speech.

Answer 44

Broca's Area (Frontal Lobe)

Question 45

Primary Sensory Cortex

Answer 45

Parietal Lobe

Question 46

Short-Term Memory

Answer 46

Parietal Lobe

Question 47

Judgement, Awareness, Attention, Thinking, Aggression, Mood, Abstract

Answer 47

Frontal Lobe

Question 48

Auditory Cortex

Answer 48

Temporal Lobe

Question 49

Understanding, Read, Hear

Answer 49

Wenicke's Area (Temporal Lobe)

Question 50

Visual Processing

Answer 50

Occipital Lobe