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Anatomy of the Axilla Quiz

#1

Which muscle is responsible for adduction of the arm in the axilla?

Pectoralis major
Explanation

Adduction of the arm

#2

What is the space located between the lateral border of the first rib, superior border of the scapula, and posterior aspect of the clavicle called?

Supraclavicular space
Explanation

Space bordered by bones

#3

Which anatomical structure forms the inferior border of the axilla?

Pectoralis major muscle
Explanation

Forms inferior border

#4

Which of the following is a component of the axillary sheath?

Brachial artery
Explanation

Component of sheath

#5

What is the primary function of the clavipectoral fascia in the axilla?

Attachment of muscles
Explanation

Muscle attachment

#6

What is the brachial plexus?

A network of nerves in the axilla
Explanation

Nerve network in the axilla

#7

Which vein passes through the axilla and is often used for venipuncture?

Axillary vein
Explanation

Common vein for venipuncture

#8

Which nerve is commonly affected in the condition known as 'winged scapula'?

Long thoracic nerve
Explanation

Affected in 'winged scapula'

#9

What is the function of the pectoralis minor muscle in the axilla?

Scapular protraction
Explanation

Protraction of the scapula

#10

What is the primary function of the subclavius muscle in the axilla?

Depresses the clavicle
Explanation

Clavicle depression

#11

Which artery travels through the axilla, supplying blood to the upper limb and forming an anastomosis with the dorsal scapular artery?

Subscapular artery
Explanation

Blood supply with anastomosis

#12

What is the primary function of the axillary lymph nodes?

Filter lymphatic fluid from the arm
Explanation

Lymphatic fluid filtration

#13

Which artery is a major blood supply to the axilla and the upper limb?

Axillary artery
Explanation

Major blood supply to axilla and upper limb

#14

Which lymphatic drainage basin receives the majority of lymph from the axilla?

Apical axillary lymph nodes
Explanation

Main lymph node basin

#15

In a brachial plexus injury known as 'Erb's palsy,' which nerves are typically affected?

Axillary and musculocutaneous nerves
Explanation

Affected nerves in 'Erb's palsy'

#16

What is the primary function of the coracobrachialis muscle in the axilla?

Flexion of the arm
Explanation

Arm flexion

#17

Which nerve is responsible for the sensation over the lateral aspect of the arm and forearm, passing through the axilla?

Musculocutaneous nerve
Explanation

Sensation in arm and forearm

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