Brachial Plexus

Question 1

The posterior triangle of the neck is bordered by the ____ muscle

Answer 1

the ____ muscle

Question 2

The axilla contains important structures such as the axillary artery and the ____ plexus

Answer 2

which is crucial for ____ movement. brachial

Question 3

The brachial plexus is formed by the ventral rami of spinal nerves C5 to ____ and is responsible for innervating the ____ and upper limb. T1

Answer 3

shoulder

Question 4

In the context of medical education

Answer 4

the posterior triangle of the neck is significant for understanding the anatomy of the ____ and its relation to the ____ plexus. nerves

Question 5

The axilla serves as a passageway for nerves and blood vessels

Answer 5

including the ____ artery and the ____ plexus. subclavian

Question 6

The sternocleidomastoid muscle is a key landmark in the posterior triangle of the neck

Answer 6

separating it from the ____ triangle. anterior

Question 7

The posterior triangle is bounded by the ____ muscle

Answer 7

the ____ muscle

Question 8

The scalene interval is located between the ____ and ____ scalene muscles. anterior

Answer 8

middle

Question 9

Scalene interval syndrome can compress structures such as the ____ and ____ nerves. brachial plexus

Answer 9

subclavian artery

Question 10

The sternocleidomastoid muscle is innervated by the ____ nerve and attaches to the ____ and ____. accessory

Answer 10

sternum

Question 11

To evaluate the pulse of the subclavian artery

Answer 11

one must locate it beneath the ____ and above the ____ muscle. clavicle

Question 12

The brachial plexus is formed from the roots of spinal nerves ____ to ____. C5

Answer 12

T1

Question 13

The phrenic nerve is composed of fibers from spinal segments ____ and is responsible for ____. C3

Answer 13

C4

Question 14

The axilla is bounded by the ____ muscle

Answer 14

the ____ muscle

Question 15

The axillary lymph nodes drain lymph from the ____ and ____ regions. upper limb

Answer 15

breast

Question 16

The brachial plexus can be drawn from its origins through the ____ and ____ nerves. terminal

Answer 16

preterminal

Question 17

The spinal cord segments contributing to the brachial plexus include ____ to ____ and also to the terminal nerves. C5

Answer 17

T1

Question 18

The superior boundaries of the neck include the _____ and the _____ skull. mandible

Answer 18

posterior

Question 19

The inferior boundaries of the neck are the _____ and the _____ shoulders. thorax

Answer 19

shoulders

Question 20

The boundaries of the posterior triangle include the middle 1/3 of the _____

Answer 20

the anterior margin of the _____

Question 21

The posterior triangle of the neck is defined by the _____ margin of the trapezius and the _____ margin of the sternocleidomastoid. anterior

Answer 21

posterior

Question 22

The neck is bounded superiorly by the mandible and _____

Answer 22

and inferiorly by the thorax and _____ . posterior skull

Question 23

The posterior triangle of the neck includes the middle 1/3 of the clavicle

Answer 23

the anterior margin of _____

Question 24

The roof of the posterior triangle is formed by the ____ and ____ layers. skin

Answer 24

superficial fascia

Question 25

The muscles that form the floor of the posterior triangle include the ____ and ____ scalene muscles. middle

Answer 25

posterior

Question 26

The investing layer of deep cervical fascia covers the ____ muscle

Answer 26

which is responsible for facial expression. platysma

Question 27

The posterior triangle includes the ____ and ____ scalene muscles along with the levator scapulae. anterior

Answer 27

middle

Question 28

The posterior triangle is bounded by the ____ layer of deep cervical fascia on its floor. prevertebral

Question 29

The posterior triangle contains the cutaneous nerves of the cervical plexus and the ____ nerve

Answer 29

which is important for neck movement. Accessory

Question 30

In the posterior triangle

Answer 30

the external jugular vein and the ____ artery are significant vessels that are present. subclavian

Question 31

The posterior triangle is related to the upper limb because it conveys the ____ plexus and subclavian ____. brachial

Answer 31

vessels

Question 32

The posterior triangle includes the phrenic nerve and the ____ plexus rami and trunks

Answer 32

which are essential for upper limb function. brachial

Question 33

Numerous structures emerge from the posterior triangle

Answer 33

including the subclavian vein and the ____ nerve. phrenic

Question 34

The cervical plexus is formed by the ventral rami of ____ to ____. C1

Answer 34

C4

Question 35

The cervical plexus consists of cutaneous branches and ____ branches. muscular

Question 36

The cutaneous branches of the cervical plexus include the lesser occipital nerve and the ____ nerve. greater auricular

Question 37

In the posterior triangle

Answer 37

the cutaneous branches emerge from beneath the ____ muscle. sternocleidomastoid

Question 38

The cervical plexus includes the transverse cervical nerve and the ____ nerves. supraclavicular

Question 39

The ____ joint connects the sternum and clavicle

Answer 39

while the omohyoid muscle is located in the ____ region. sternoclavicular

Question 40

The phrenic nerve provides motor innervation to the ____ and sensory innervation to the ____ area of the diaphragm. diaphragm

Answer 40

central

Question 41

A bilateral lesion of the phrenic nerves can lead to ____ in breathing and may cause ____ pain. difficulty

Answer 41

referred

Question 42

To remove a section of the clavicle

Answer 42

you should use a ____ and cut the omohyoid muscle with ____ scissors. saw

Question 43

The sensory fibers of the phrenic nerve enter the same ____ spinal cord segment as the diaphragm

Answer 43

leading to referred pain in the ____ area. C4

Question 44

The scalene triangle is bounded anteriorly by the _____ muscle and posteriorly by the _____ and _____ muscles. anterior scalene

Answer 44

middle scalene

Question 45

The inferior boundary of the scalene triangle is the _____ rib

Answer 45

which is crucial for understanding its anatomy. first

Question 46

The major network of nerves that supplies the upper limb is known as the _____ _____

Answer 46

which is formed by the roots C5 to T1. brachial plexus

Question 47

The roots of the brachial plexus are derived from the ventral rami of spinal nerves _____ to _____. C5

Answer 47

T1

Question 48

To remember the roots of the brachial plexus

Answer 48

use the mnemonic 'Remember To Drink Cold _____.' Beverage

Question 49

The subclavian artery is evaluated by palpating downward ____ to the clavicle to compress the artery against the ____ rib. posterior

Answer 49

first

Question 50

When the subclavian artery crosses the lateral border of the first rib

Answer 50

it changes its name to the ____ artery. axillary

Question 51

The most proximal pulse point for evaluating arterial sufficiency in the upper limb is the ____ artery. subclavian

Question 52

To assess the subclavian pulse

Answer 52

one must compress the artery against the ____ rib

Question 53

Scalene Interval Syndrome can be caused by anything that narrows the scalene interval

Answer 53

such as a _____ or _____ muscle slip. cervical rib

Question 54

Compression of the subclavian artery in Scalene Interval Syndrome leads to insufficient blood flow to the _____ and reduced _____ distal to occlusion. upper extremity

Answer 54

arterial pulses

Question 55

Nerve compression in Scalene Interval Syndrome usually involves the _____ & _____ ventral rami or the inferior trunk of the brachial plexus. C8

Answer 55

T1

Question 56

In Scalene Interval Syndrome

Answer 56

the compression of the subclavian artery can result in _____ blood flow and _____ pulses. insufficient

Question 57

The causes of Scalene Interval Syndrome include fibrous bands

Answer 57

a cervical rib

Question 58

The subclavian artery is located ____ to the anterior scalene muscle

Answer 58

while the subclavian vein is ____ to it. posterior

Question 59

The axilla is described as a ____-shaped space located between the upper arm and the ____ of the chest. pyramid

Answer 59

side

Question 60

The major nerves

Answer 60

lymphatics

Question 61

The phrenic nerve originates from spinal levels ____ and is found on the ____ surface of the anterior scalene. C3

Answer 61

4

Question 62

The axillary artery and axillary vein are located in the ____ and are surrounded by ____ for protection. axilla

Answer 62

fat

Question 63

The three trunks of the brachial plexus are found in the ____ and are essential for ____ communication. axilla

Answer 63

nerve

Question 64

The apex of the axilla is formed by the clavicle

Answer 64

upper border of the scapula

Question 65

The base of the axilla consists of the skin and _____ of the armpit. fascia

Question 66

The anterior wall of the axilla includes the pectoralis major

Answer 66

pectoralis minor

Question 67

The posterior wall of the axilla is made up of teres major

Answer 67

latissimus dorsi

Question 68

The medial wall of the axilla is formed by the upper portion of the thoracic wall and the _____ anterior. serratus

Question 69

The lateral wall of the axilla is represented by the intertubercular sulcus of the _____. humerus

Question 70

The axillary artery changes its name to _____ after crossing the outer border of the _____ rib. brachial artery

Answer 70

1st

Question 71

The axillary artery is a continuation of the _____ artery and becomes the _____ artery at the lower border of teres major. subclavian

Answer 71

brachial

Question 72

The contents of the axilla include the axillary artery

Answer 72

axillary vein

Question 73

The axillary vein receives tributaries from the axillary artery and the _____ plexus. brachial

Question 74

The axillary artery is located in the _____ and changes its name at the lower border of the teres major muscle. axilla

Question 75

The axillary artery is divided into ____ parts

Answer 75

which are separated by the ____ minor. 3

Question 76

Part 1 of the axillary artery gives off ____ branch

Answer 76

known as the ____ thoracic artery. 1

Question 77

Part 2 of the axillary artery has ____ branches

Answer 77

including the thoracoacromial trunk and the ____ thoracic artery. 2

Question 78

The third part of the axillary artery gives off ____ branches

Answer 78

which include the subscapular artery and both the anterior and ____ circumflex humeral arteries. 3

Question 79

The axillary vein is formed at the lower border of ____ by the joining of the ____ and the basilic vein. teres major

Answer 79

brachial veins

Question 80

The axillary vein changes its name to the subclavian vein at the outer border of the ____ rib. 1st

Question 81

The brachial plexus is a nerve plexus that supplies both ____ and ____ function to a common anatomical region. motor

Answer 81

sensory

Question 82

The axillary vein accompanies the axillary ____ through the axilla. artery

Question 83

Nerve fibers from two or more spinal segments intermingle in the ____ plexus. brachial

Question 84

The brachial plexus is formed by the ventral rami of spinal nerves C5

Answer 84

C6

Question 85

The trunks of the brachial plexus are formed from the ventral rami of which spinal nerves: C5

Answer 85

C6

Question 86

Each trunk of the brachial plexus distributes fibers to an anterior division and a _____ division. posterior

Question 87

The ventral rami that contribute to the brachial plexus include C5

Answer 87

C6

Question 88

The brachial plexus consists of trunks

Answer 88

divisions

Question 89

The anterior and posterior divisions of the brachial plexus are formed from the _____ of the trunks. fibers

Question 90

The brachial plexus is formed by the trunks of ____ and ____ which are made up of ventral rami from spinal nerves. C5

Answer 90

C6

Question 91

The cords of the brachial plexus are named based on their position relative to the ____ artery and include the ____ and ____ cords. axillary

Answer 91

lateral

Question 92

The brachial plexus consists of trunks

Answer 92

divisions

Question 93

The anterior divisions of the brachial plexus contribute to the formation of the ____ and ____ cords. lateral

Answer 93

medial

Question 94

The cords of the brachial plexus terminate into several major nerves including the ____ and ____ nerves. median

Answer 94

ulnar

Question 95

The brachial plexus is crucial for the innervation of the upper limb

Answer 95

with its roots originating from spinal nerves ____ to ____. C5