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Flashcards in Thoracic plexus Deck (15)
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1
Q

What muscles are supplied by the medial branch of each posterior primary rami of the thoracic vertebra

A

semispinalis
Longissimus
Multifidi

2
Q

What gives sensory supply to the skin paraspinally

A

Sensory portion of the medial branch of the posterior thoracic rami

3
Q

What muscles are supplied by the lateral branch of each posterior primary rami of the thoracic vertebra

A

Longissiums
iliocostalis
levator costarum

4
Q

What gives sensory supply to the skin near the costal angles

A

Sensory portion of the lateral branch of the posterior thoracic rami

5
Q

What do the anterior primary rami follow

A

The course of the rib it is associated with

6
Q

What nerves contribute to the intercostaobrachial nerve

A

T2 (somtimes T1)

7
Q

each intercostal nerve divides into a lateral cutaneous branch which divides into what

A

Anterior and poterie brahc of the lateral cutaneous branch

8
Q

What does the lateral cutaneous branch of each intercostal nerve supply

A

Skin overlying the rib its on

9
Q

What is the terminal branch of each cutaneous nerve

A

Anterior cutaneous branch

10
Q

What does the anterior cutaneous branch supply

A

Skin close to midline

11
Q

Are postganglionic sympathetics mylinated

A

No

12
Q

Which thoracic nerve is the largest

A

Subcostal nerve

13
Q

Which thoracic nerve may supply skin as far inferior as the buttocks

A

The subcostal nerve

14
Q

What type of communicans does each thoracic nerve receive

A

Grey and white communicans

15
Q

What muscles are supplied by thoracic nerves 7-11

A

Transverse abdominus
Internal oblique
External oblique
Rectus abdominus