Hadzic's Chapter 1 Reading

Question 1

The cervical plexus originates from the

Answer 1

anterior rami of C1-C4

Question 2

In Cervical Plexus, the anterior rami combines into

Answer 2

3 loops from which the deep and superficial branches arise

Question 3

The neuron is the

Answer 3

basic functional unit responsible for the conduction of nerve impulses

Question 4

Anatomy of a neuron

Answer 4

A typical neuron consists of a cell body (soma) that contains a large nucleus. The cell body is attached to several branching processes, called dendrites, and a single axon

Question 5

Receive incoming messages

Answer 5

Dendrites

Question 6

Conduct outgoing messages

Answer 6

axons

Question 7

Peripheral nerves, axons are very long and slender. They

are also called

Answer 7

nerve fibers.

Question 8

The individual nerve fibers that make up a nerve, like individual wires in an electric cable, are bundled together by

Answer 8

connective tissue.

Question 9

Is an important part of the nerve

Answer 9

The connective tissue of a peripheral nerve

Question 10

Which layer surround the ENTIRE NERVE and hold it loosely to the connective tissue?

Answer 10

Epineurium

Question 11

Axons that bundles together within a nerve forms a ________surrounded by

Answer 11

Fascicle: perineurium

Question 12

It is at this level that the nerve–blood barrier is located and constitutes the last protective barrier of the nerve tissue

Answer 12

Perineurium

Question 13

Fine connective tissue within a fascicle that surrounds every individual nerve fiber or axon

Answer 13

Endoneurium

Question 14

The nerves that make their exit through the skull are known as

Answer 14

cranial nerves, and there are 12 pairs of them.

Question 15

The nerves that exit below the skull and between the vertebrae are called

Answer 15

spinal nerves, and there are 31 pairs of them

Question 16

Each spinal nerve is formed by a

Answer 16

dorsal and a ventral root that come together at the level of the intervertebral foramen

Question 17

Each spinal nerve supplies a specific segment of the body surface, known as a

Answer 17

dermatome.

Question 18

A dermatome is an area of the skin supplied by

Answer 18

the dorsal (sensory) root of the spinal nerve

Question 19

A myotome is the segmental innervation

Answer 19

of skeletal muscle by a ventral root of a specific spinal nerve

Question 20

Other word for rami

Answer 20

Branch (smaller branch )

Question 21

What are the four cutaneous branches of the cervical plexus, the (Le grand tout seul)

Answer 21

Lesser occipital nerve
greater auricular nerve
transverse cervical nerve
supraclavicular nerve.

Question 22

The four cutaneous branches of the cervical plexus derived from

Answer 22

C2-C4

Question 23

Cervical plexus innervation

Answer 23

SUN
scalp, upper shoulder, neck,
motor innervation to some of the muscles of the neck, the thoracic cavity, and the skin

Question 24

Cervical plexus blocks are defined by

Answer 24

injections relative to the two layers of the deep cervical fascia (ie, the superficial, or investing, layer and the deep layer).

Question 25

A superficial cervical plexus block involves

Answer 25

injection superficial to the investing layer

Question 26

Intermediate block involves injection between

Answer 26

supervision and deep layer

Question 27

The deep Cervical Plexus block involves injection

Answer 27

deep to the deep layer

Question 28

Part and one of the larger branches of the plexus, innervates the diaphragm

Answer 28

The phrenic nerve

Question 29

What is the spinal segment of the Ansa cervicalis (superior and inferior branches)

Answer 29

C1-C4

Question 30

Distribution of the Ansa Cervicalis by way of which nerve | GOTSS

Answer 30

Five of the extrinsic laryngeal muscles | sternothyroid, sternohyoid, omohyoid, geniohyoid, and thyrohyoid) by way of N XII (hypoglossal

Question 31

Lesser occipital, transversecervical, supraclavicular, and greater auricular nerves spinal segment and distribution

Answer 31

C2- C3 Skin of upper chest, shoulder, neck, and ear

Question 32

Phrenic nerve spinal segment and distribution

Answer 32

C3-C5 Diaphragm

Question 33

Cervical nerves spinal segment and distribution | CN

Answer 33

C1-C5 Levator scapulae, scalene muscles, sternocleidomastoid, and trapezius muscles (with N XI) accessory nerve

Question 34

The brachial plexus innervates the

Answer 34

pectoral girdle and upper limb.

Question 35

The Brachial plexus is formed by

Answer 35

five roots that originate from the ventral rami of spinal nerves C5-T1.

Question 36

ROOTS that Form the upper trunk of the Brachial Plexus

Answer 36

C5 and C6 roots merge to form the upper trunk.

Question 37

ROOTS that Form the middle trunk of the Brachial Plexus

Answer 37

C7

Question 38

ROOTS merge to form the lower trunk of the Brachial Plexus

Answer 38

The C8 and T1

Question 39

The TRUNKS give off

Answer 39

three anterior and three posterior DIVISIONS as they approach the clavicle.

Question 40

THE DIVISIONS rearrange to form

Answer 40

Medial, lateral and Posterior CORDS

Question 41

THE CORDS give offs

Answer 41

TERMNINAL BRANCHES

Question 42

The lateral cord gives off the

Answer 42

musculocutaneous nerve, and the lateral root of the median nerve.

Question 43

The medial cord gives off the medial root of the

Answer 43

median nerve and the ulnar nerve.

Question 44

The posterior cord gives off the

Answer 44

axillary and radial nerves.

Question 45

For Brachial Plexus The largest percentages of motor fibers are from_____ and the least are __

Answer 45

C5 and C6 roots, and the least from C7 and T1 roots

Question 46

For Brachial Plexus The greatest number of sensory fibers is from the

Answer 46

C7 root, with lesser amounts from C5, C6, C8, and T1 roots

Question 47

supplying muscles important for swallowing and speech

Answer 47

Ansa cervicalis (C1-C3)

Question 48

What is the External landmark of Cervical plexus Block

Answer 48

Middle point of the sternocleidomastoid muscle between mastoid process and clavicle.

Question 49

The lumbar plexus is formed by the

Answer 49

ventral rami of spinal nerves L1-L3 and the superior branch of L4

Question 50

In LUMBAR PLEXUS In about 50% of the cases, there is a | contribution from.

Answer 50

T12

Question 51

The inferior branch of L4, along with the entire ventral rami of L5, forms the

Answer 51

lumbosacral trunk that contributes to the sacral plexus.

Question 52

The main branches of the lumbar plexus are the

Answer 52

iliohypogastric, ilioinguinal genitofemoral, lateral femoral cutaneous, obturator, and femoral nerves

Question 53

The sacral plexus arises from the (Figures 1-21,1- 22A,B, 1-23, and 1-24). ,

Answer 53

lumbosacral trunk | (L4-L5) plus the ventral rami of S1-S4

Question 54

The main nerves of the sacral plexus are

Answer 54

the sciatic nerve and the pudendal nerve

Question 55

The two components of the sciatic nerve diverge into two recognizable nerves:

Answer 55

the common peroneal and the tibial nerve