Lecture 13: Thorax Flashcards by Riley Hrasky

Q

what joints are #1

A

intervertebral joints

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Q

what joints are #2

A

costovertebral joints

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Q

what joints are #3

A

costochondral joints

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Q

what joints are #4

A

sternocostal joints

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Q

what joints are #5

A

sternal joints

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Q

what joints are #6

A

intercostal joints

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Q

what is the name for ligament #1

A

supraspinal

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Q

what is the name for ligament #2

A

interspinal

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Q

what is the name for ligament #3

A

dorsal intervertebral

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Q

what is the name for ligament #4

A

ventral intervertebral

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Q

what is the name for #5

A

intervertebral discs

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Q

6?

A

ligament of costal tubercle

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Q

7?

A

superficial radiate costal ligament

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Q

8?

A

radiate ligament

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Q

9?

A

costotransverse ligament

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Q

10?

A

lateral costotransverse ligament

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Q

what are the arrows pointing to

A

Levatores costarum
- there is one atop each rib

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Q

what is in purple

A

intercostales externi
- its fibers extend caudoventrally

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Q

?

A

intercostales externi

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Q

A

intercostales INterni
- fibers extend cranioventrally

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Q

A

retractor costae

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Q

A

transversus thoracis

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Q

A

rectus thoracis

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Q

what does A show

A

central tendon of the diaphragm

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Q

what does B show

A

costal regions (bilateral)

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Q

what does C show

A

sternal region

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Q

what does D show

A

lumbar region

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Q

what region is shown in yellow

A

costal regions (costal arch)

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Q

what region is shown in teal?

A

sternal regions (xiphoid cartilage)

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Q

what region is shown by the purple line

A

lumbar region
- ventral surface of the lumbar vertebrae (2 crura)

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Q

B?

A

esophageal hiatus
- espohagus

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Q

A?

A

aortic hiatus
- aorta
- azygous vein
- thoracic duct

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Q

C?

A

foramen vena cavae
- caudal vena cava

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Q

what is 1.

A

aorta

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Q

what is 2.

A

dorsal intercostal a.

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Q

what is 3.

A

internal thoracic a.

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Q

what is 4.

A

ventral intercostal a.

Q

what is 5.

A

lateral cutaneous branches

Q

what is 6.

A

perforating branch

Q

what is 7.

A

collateral a.

Q

what is 1.

A

aorta

Q

what is 2.

A

dorsal intercostal a.

Q

what is 3.

A

internal intercostal a.

Q

what is 4.

A

ventral intercostal a.

Q

what is 5.

A

lateral cutaneous branches

Q

what is 6.

A

perforating branch

Q

what is 7.

A

collateral a.

Q

1?

A

spinal cord

Q

2?

A

spinal nerve

Q

3?

A

ventral branch

Q

4?

A

intercostal n.

Q

5?

A

lateral cutaneous branch

Q

6?

A

ventral cutaneous branch

Q

A

lateral cutaneous branches

Q

what is shown by 1,2,3?

A

1: intercostal artery, 2. intercostal vein, 3. intercostal nerve

Q

A

aorta

Q

A

esophagus

Q

A

pericardium

Q

A

caudal vena cava

Q

A

left primary bronchus

Q

what is the ORIGIN of the LEVATORES COSTARUM

A

transverse process of thoracic vertebrae

Q

what is the INSERTION of the LEVATORES COSTARUM

A

lateral surfaces and cranial borders of the dorsal ends of ribs that are caudal to the vertebral origin

Q

what is the INNERVATION of the LEVATORES COSTARUM

A

intercostal nerve

Q

what is the ACTION of the LEVATORES COSTARUM

A

draw ribs in cranially during inspiration
rotation and flexion of vertebral column

Q

what is the ORIGIN of the RETRACTOR COSTAE

A

Transverse processes of L1-L3/L4

Q

what is the INSERTION of the RETRACTOR COSTAE

A

caudal border of last rib

Q

what is the INNERVATION of the RETRACTOR COSTAE

A

Lumbar nerves

Q

what is the ACTION of the RETRACTOR COSTAE

A

retracts the last rib during expiration

Q

what muscles are involved in expiration

A

intercostales interni
retractor costae
transversus thoracis

Q

what muscles are involved in inspiration

A

intercostales externi
rectus thoracis
levatores costarum
diaphragm

Q

what is the ORIGIN of the INTERCOSTALES EXTERNI

A

caudal border of ribs

Q

what is the INSERTION of the INTERCOSTALES EXTERNI

A

cranial borders and lateral surfaces of caudal rib

Q

what is the INNERVATION of the INTERCOSTALES EXTERNI

A

intercostal nerves

Q

what is the ACTION of the INTERCOSTALES EXTERNI

A

draw ribs in cranially for inspiration

Q

what is the ORIGIN of the INTERCOSTALES INTERNI

A

cranial border of ribs

Q

what is the INSERTION of the INTERCOSTALES INTERNI

A

caudal borders of preceding ribs

Q

what is the INNERVATION of the INTERCOSTALES INTERNI

A

intercostal nerves

Q

what is the ACTION of the INTERCOSTALES INTERNI

A

pulls ribs in caudally during expiration

Q

what is the ORIGIN of the TRANSVERSUS THORACIS

A

sternal ligament at the midline

Q

what is the INSERTION of the TRANSVERSUS THORACIS

A

cartilages of ribs 2-8

Q

what is the INNVERVATION of the TRANSVERSUS THORACIS

A

spinal nerve

Q

what is the ACTION of the TRANSVERSUS THORACIS

A

draws ribs in caudomedially, assisting in expiration

Q

what is the ORIGIN of the RECTUS THORACIS

A

ventral region of first rib

Q

what is the INSERTION of the RECTUS THORACIS

A

by an aponeurosis (tendon like connective tissue piece) to the origin of the rectus abdominus

Q

what is the INNERVATION of the RECTUS THORACIS

A

intercostal nerves

Q

what is the ACTION of the RECTUS THORACIS

A

moves ribs cranially during inspiration

Q

what are the ORIGINS of the DIAPHRAGM?

A

costal, sternal and lumbar regions of the ribcage

Q

what is the INSERTION of the DIAPHRAGM

A

central tendon

Q

what is the INNERVATION of the DIAPHRAGM

A

phrenic nerve

Q

what is the ACTION of the DIAPHRAGM

A

increases volume of the thoracic cavity during inspiration

Q

A