Anatomy Review Slides Lec. 17

Question 1

External Intercostal Muscle layer Characteristics

Answer 1

• DIRECTLY attaches to the Transverse Process of the Vertebra
• INDIRECTLY attaches to the to the Sternum via CT

Question 2

Major blood supplies to the Breast

Answer 2

3 Total

1. INTERNAL Thoracic Artery
2. LATERAL Thoracic Artery
3. INTERCOSTAL Arteries

Question 3

What Innervates the SERRATUS ANTERIOR

Answer 3

The Long Thoracic Nerve

- C5 - C7

Question 4

Blood supply of the Serratus Anterior?

Answer 4

Superior Thoracic

&

Lateral Thoracic Arteries

Question 5

Types of ribs

Answer 5

3 Types

1. Vertebro-sternal
2. Vertebro-chondral
3. Vertebral ribs

Question 6

Bifurcation of the Trachea Both ANT. & POST.

Answer 6

Anterior
- STERNAL Angle

Posterior
- T4/T5 vertebral level

Question 7

The Costal groove of the Shaft of the rib contains what from SUP. to INF.?

Answer 7

1. Intercostal VEIN
2. Intercostal ARTERY
3. Intercostal NERVE

“V.A.N.”

Takes a DOWNWARD slope

Question 8

The First Rib characteristics

Answer 8

1. Flattened in a HORIZONTAL (transverse) plane
2. Imp b/c of its relation to the BP and Subclavian Vessels
3. Has landmarks such as
   - Scalene Tubercle
   - 2 Shallow grooves

Question 9

Heart sounds mnemonic

Answer 9

A ——— P

T ——
———— B

Question 10

Sternal angle marks the site of what rib?

Answer 10

Rib #2

Question 11

What are the Three Muscle layers B/W the RIbs?

Answer 11

1. EXTERNAL Intercostal
2. INTERNAL Intercostal
3. INNERMOST Intercostal

Question 12

Internal Intercostal Muscle layer Characteristics

Answer 12

• DIRECTLY attaches to the Sternum

- INDIRECTLY attaches to the Transverse process of the vertebra via CT

Question 13

Landmark for the AORTIC Valve Heart Sound?

Answer 13

• SECOND Intercostal space

- RIGHT side of the Sternum

Question 14

Landmark for the BICUSPID Valve Heart Sound?

Answer 14

• The FIFTH Intercostal space
• The LEFT of the Sternum
• 10cm to the Left
• LOWER than the Tricuspid

Question 15

What vessel is POSTERIOR to the Scalenus Ant muscle?

Answer 15

Subclavian ARTERY

“PA”

Pennsylvania

Question 16

Proximal and Distal Attachment of the Serratus Anterior?

Answer 16

Proximal
- Ribs 1 - 9

Distal
- Ant surface of the Medial border of the Scapula

Question 17

Vertebral ribs characteristics?

Answer 17

• Ribs 11 - 12

- FLOATING

Question 18

Innermost Intercostal Muscle layer Characteristics

Answer 18

• Does NOT make Direct contact with BOTH the Transverse Process or the Sternum
• “Floating”

Question 19

Scalene Tubercle

Answer 19

For Insertion of the ANTERIOR SCALENE muscle

Scalenus Anterior

Question 20

Vertebro-chondral ribs characteristics?

Answer 20

• Ribs 8 - 10

- Attached to CARTILAGE

Question 21

Vertebro-sternal ribs characteristics?

Answer 21

• Ribs 1 - 7

- Attached to the the STERNUM

Question 22

Parts of a rib

Answer 22

1. Head
2. Neck
3. Tubercle
4. Shaft
5. Costal cartilage

Question 23

Landmark for the TRICUSPID Valve Heart Sound?

Answer 23

• The FIFTH Intercostal space

- RIGHT side of the Sternum

Question 24

Tubercle of the rib

Answer 24

Articulates with the TRANSVERSE PROCESS of the Vertebra with the SAME Number

Question 25

The _____ Nerve lies SUPERIOR to the _____ Nerve in the The Chest.

Answer 25

• LATERAL Pectoral

- MEDIAL Pectoral

Question 26

Costa means?

Answer 26

Rib bone + Cartialge

Question 27

Landmark of the Apex Heart Beat?

Answer 27

• FIFTH Intercostal Space along the Mid-clavicular line

- 8.5cm from the midline

Question 28

What vessel is ANTERIOR to the Scalenus Ant muscle?

Answer 28

The Subclavian VEIN

“VA”

Virginia

Question 29

Landmark for the PULMONARY Valve Heart Sound?

Answer 29

• The SECOND Intercostal space

- LEFT side of the Sternum

Question 30

T/F: You can palpate Rib 1.

Answer 30

• False

- You can palpate rib 2