Nerves of the Upper Limb (Exam IV)

Question 1

Responsible for conscious control of muscles & conscious awareness of sensation to the upper limb:

Answer 1

Somatic control

Question 2

Vessels, certain glands of the skin, & some lymph structures that all contain smooth muscle components will receive what type of innervation?

Answer 2

Autonomic innervation

Question 3

Any sort of glandular secretion is usually going to be _____ function however what is the exception here?

Answer 3

Parasympathetic function
Exception: sweat glands

Question 4

Sweat glands & goosebumps are under the control of:

Answer 4

Sympathetics

Question 5

Provides somatomotor & somatosensory innervation to the upper extremity

Answer 5

Brachial plexus

Question 6

What type of innervation to the upper extremities does the brachial plexus provide?

Answer 6

Somatomotor & somatosensory

Question 7

The brachial plexus arises from the _____ rami of what spinal nerve roots?

Answer 7

Anterior rami of spinal nerve roots C5-T1

Question 8

The brachial plexus arises form the ______ of the spinal cord

Answer 8

Cervical enlargement

Question 9

The brachial plexus provides innervation to the:

Answer 9

Upper limbs & shoulder

Question 10

Between C4 & C5 spinal nerve roots we may see some ______

Answer 10

Overlap

Question 11

Even though some overlap may be seen between C4 & C5 spinal nerve roots, C4 is considered part of the ____ while C5 is considered part of the _____

Answer 11

Cervical plexus
Brachial plexus

Question 12

The spinal nerve roots that make up the brachial plexus emerge from the ______ of cervical vertebral & pass through the _______ & ______ muscles (also referred to was the _____ space) of the neck

Answer 12

Intervertebral formamina
Anterior & middle scalene muscles
Interscalene

Question 13

Usually indicative of a lot of spinal cord nerves coming off that part of the spinal cord segment:

Answer 13

Spinal cord enlargment

Question 14

The cervical enlargement gives rise to:

Answer 14

The brachial plexus & part of the cervical plexus

Question 15

Roots of the brachial plexus:

Answer 15

C5, C6, C7, C8, T1

Question 16

The spinal cord has dorsal roots which are _____ & ventral roots which are _____

Answer 16

Sensory
Motor

Question 17

When we talk about roots being dorsal or ventral (sensory or motor) they have to be one or the other- NOT mixed & they come together to form the:

Answer 17

Spinal nerve root

Question 18

When we talk about somatic plexuses, we talk about the roots of the plexuses, and in this case, the term root is referring to the:

Answer 18

Spinal nerve

Question 19

When talking about somatic plexuses, and using the term root meaning the spinal nerve here it is:

Answer 19

Mixed motor & sensory

Question 20

Examples of some somatic plexuses:

Answer 20

Brachial plexus, lumbar plexus, sacral plexus

Question 21

The spinal nerves are emerging through the openings between the articulated vertebral segments called:

Answer 21

Intervertebral foramina

Question 22

Describe the location of the intervertebral foramina in relationship to the vertebral bodies:

Answer 22

Posterior & lateral to the vertebral bodies

Question 23

Intervertebral foramina is where we see the:

Answer 23

Spinal nerve roots emerge

Question 24

The brachial plexus is solely composed of _____ rami, so tat means that all of the structures we see in the upper limb are derived _____

Answer 24

Ventral
Hypaxially

Question 25

The brachial plexus is made up of the ______ ______ ______ of cervical & thoracic spinal nerves C5-T1

Answer 25

Anterior ventral rami