Pectoral Region, Lungs and Thoracic Cage Flashcards

1
Q

What is the origin and insertion of a muscle?

A

Origin: Fixed attachment of the muscle
Insertion: Where muscle ends and moves with contraction

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2
Q

4 vertical lines of chest wall?

My aunt Mary piper

A

1) Mid clavicular
2) Anterior axillary
3) Mid axillary
4) Posterior axillary

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3
Q

Origin and Insertion of Pectoralis Major?

A

1) Medial 3rd clavicle, sternum, and CCart

2) Humerus

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4
Q

Innervation of Pectoralis Major?

A

Medial and Lateral Pectoral Nerves

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5
Q

Action of Pectoralis Major?

A

Adduction, medial rotation of Humerus

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6
Q

Origin and Insertion of Pectoralis Minor?

A

1) Ribs 3-5

2) Coracoid process of scapula

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7
Q

Innervation of Pectoralis Minor?

A

Medial Pectoral Nerve

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8
Q

Action of Pectoralis Minor?

A

Protraction of shoulder

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9
Q

Origin and Insertion of Serratus Anterior?

A

1) Upper 8 ribs

2) Costal surface of scapula

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10
Q

Innervation of Serratus Anterior?

Action?

A

Long thoracic nerve

Protraction of scapula

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11
Q

Innervation of intercostal muscles?

A

Intercostal nerves (t1-11)

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12
Q

Lung function?

A

Oxygenate blood by bringing inspired air in contact in Pul Cap w/ O2 deficient blood

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13
Q

What does internal thoracic artery branch into?

A

1) Musculophrenic (diaphragm)

2) Superior epigastric (Front of abdomen)

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14
Q

Pleural cavity?

A

Space between visceral and parietal pleura

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15
Q

Name 2 functions of the serous fluid within the pleural cavity?

A
  1. Lubricates the pleurae.

2. Creates a surface tension helping the lungs to expand on inspiration.

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16
Q

Function of Hilum and 4 structures in Hilum?

A

Connect lungs to rest of the body

1) Pulmonary Artery, Bronchus, (2) Pulmonary Vein

17
Q

3 smaller vessels in Hilum?

A

1) Bronchial Artery
2) Lymph nodes
3) Pulmonary plexus of autonomic nerves

18
Q

Lobes of Right Lung?

A

Superior, Middle, Inferior

19
Q

Lung containing foreign bodies?

A

Right lung, as right main bronchus shorter and more vertical

20
Q

Where are the fissures found along Lungs?

A

1) Horizontal (4th rib)

2) Oblique (6th rib)

21
Q

3 surfaces of the Lungs?

A

1) Costal
2) Mediastinal
3) Diaphragmatic

22
Q

3 borders of lungs?

A

1) Anterior
2) Posterior
3) Inferior

23
Q

Describe the innervation of the lungs?(3)

A
  1. Parasympathetic innervation derived from vagus nerve.
  2. Sympathetic innervation derived from sympathetic trunks.
  3. Visceral afferent - conducts pain impulses to sensory ganglion.
24
Q

Action of Parasympathetic innervation?

A

Bronchoconstriction and vasodilation of pulmonary vessels

25
Q

Action of Sympathetic innervation?

A

Bronchodilation and vasoconstriction of vessels (that are poorly ventilated)

26
Q

What are the 2 impressions on the left lung?

A

Aortic and Cardiac