Gross Exam 3

Question 0

Which nerves are atypical intercostal nerves?

Answer 0

1st-2nd and 7th-11th

Question 1

The anterior rami of T1-T11 form what nerves? And T12?

Answer 1

The intercostal nerves and sub costal nerve

Question 2

Which three arteries supply an intercostal space?

Answer 2

Posterior intercostal artery and a small pair of anterior intercostal arteries off the intercostal arteries.

Question 3

Name the nine regions of the abdominal cavity.

Answer 3

Right and left hypochondriac, epigastric, umbilical, left and right lumbar, right and left inguinal, and hypo gastric (pubic)

Question 4

What four planes divide the abdominal region into the 9 regions?

Answer 4

Sub costal plane, trans tubercular plane, aNd two midclavicular planes.

Question 5

Which plane passes through the midpoint of the clavicle and midpoint of the inguinal lines?

Answer 5

Midclavicular planes

Question 6

Which plane passes through the iliac tubercles and the body of L5 vertebrae?

Answer 6

Trans tubercular plane

Question 7

Which plane passes through the inferior border of the 10th costal cartilage?

Answer 7

Subcostal plane

Question 8

What are the boundaries of the anterolateral wall?

Answer 8

Costal cartilages of ribs 7-10 the xiphoid process and inguinal ligament and pelvic bones

Question 9

Name the fascias of the anterolateral abdominal wall from superficial to deep.

Answer 9

Subcutaneous tissue: superficial fatty layer and deep membranous layer
Investing fascia (epimysium of the three muscle layers)
Endo-abdominal fascia: transversalis fascia would be the inner most layer.
Extra-peritoneal fat
Parietal peritoneum

Question 10

How do the external and internal oblique fibers run?

Answer 10

Inferiormedially and Inferolaterally.

Question 11

What are the five umbilical peritoneal folds?

Answer 11

Two medial umbilical folds and two lateral umbilical folds, and median umbilical fold.

Question 12

what are the typical ribs? and there characteristics?

Answer 12

3-9th, they articulate inferior with the thoracic vertebrae of their rib number and superiorly with the rib above. therefore the head has two facets seperated by crest

Question 13

which ribs are atypical? what makes them atypical?

Answer 13

1-2 and 10-12. The 1st and 10-12 only have one facet. the 11th-12th ribs have no necks or tubercles.

Question 14

which thoracic vertebrae have costal facets on the transverse process?

Answer 14

inferior two to three ribs

Question 15

what kind of joint is the intervertebral and the manubriosternal?

Answer 15

secondary cartilagenous, symphysis

Question 16

what kind of joints are the costovertebral and costotransverse?

Answer 16

synovial planar joint

Question 17

what kind of joint is the sternocostal?

Answer 17

1st is primary cartilagenous and the 2nd-7th are synovial planar

Question 18

what kind of joint is the xiphisternal and costochondral?

Answer 18

primary cartliganeous joint.

Question 19

at what level is the sternal angle?

Answer 19

IV disc between T4-T5

Question 20

What level is the body of the sternum? and the xiphoid process?

Answer 20

T5-T9. T10

Question 21

what is responsible for the producing the subatomic pressure in the pleural cavity?

Answer 21

the elastic recoil of lungs

Question 22

which ribs act to perform a pump handle movement andhow does this pumphandle increase the dimensions of the thoracic cavity?

Answer 22

the upper ribs, and increase the thoracic cavity anterior to posterior

Question 23

how do the inferior ribs move and what dimensions do they increase?

Answer 23

they perform a bucket handle movement that increases the transverse dimnesions

Question 24

The anterior rami of T1-T11and T12 form what nerves?

Answer 24

The intercostal nerves and the Subcostal nerve

Question 25

From superior to inferior list the posterior intercostal vein and artery and intercostal nerve as they lay in the costal groove.

Answer 25

Posterior intercostal vein, artery, then intercostal nerve.

Question 26

What are the atypical intercostal nerves? And which are typical?

Answer 26

1st-2nd and 7th-11th.

And 3rd-6th

Question 27

What arteries supply the thoracic wall?

Answer 27

The superior thoracic, lateral thoracic, internal thoracic, and posterior and anterior thoracic arteries

Question 28

Name the divisions of the bronchi.

Answer 28

Main bronchus, lobar bronchi, segmental bronchi, tertiary bronchi, and respiratory bronchi.

Question 29

How many alveolar ducts does the respiratory bronchiole give rise too, and how many alveolar sacs does each duct give rise to?

Answer 29

2-11 ducts and 5-6 sacs

Question 30

Where is the apex of the heart?

Answer 30

The 5th intercostal space