9/2 Anatomy Lab

Question 1

around the nipple

Answer 1

areola

Question 2

the ligaments in the superior posterior of the breast

Answer 2

suspensory ligaments

Question 3

posterior the breast

Answer 3

retromammary space

Question 4

at the top of the sternum, the “shield” shaped bone

Answer 4

manubrium

Question 5

bottom of the manubrium rib 2 connection

Answer 5

Sternal angle

Question 6

xiphoid process

Answer 6

inferior the sternal body.

Question 7

the main bone of the anterior thoracic wall

Answer 7

sternal body

Question 8

true ribs

Answer 8

ribs 1-7

Question 9

false ribs

Answer 9

ribs 8-10

Question 10

floating ribs

Answer 10

ribs 11-12

Question 11

the non-bone connection from rib to sternum

Answer 11

costal cartilage.

Question 12

name the muscles of the anterior thoracic wall from superior to inferior

Answer 12

Deltoid muscles; pectoralis major; pectoralis minor; subclavius muscle; serratus anterior muscle

Question 13

the groove cleft between the shoulder and the chest

Answer 13

Deltopectoral groove (cephalic vein is here)

Question 14

describe the branches off of the thoracoacramial trunk of the axial artery

Answer 14

Pectoral; Deltoid; Acromial; Clavicular.

Question 15

Name the intercostal muscles from the superior to the inferior

Answer 15

External intercostal muscles and membrane (diagnal towards the belly button); Internal intercostal muscles and membrane (towards the chin). Innermost intercostal muscles.

Question 16

what three structures occupy the intercostal groove?

Answer 16

Intercostal vein; Intercostal artery; Intercostal nerve.

Question 17

attach the posterior surface of the sternum to the costal cartilages of the mid to lower true ribs and functions to depress the costal ends of the ribs.

Answer 17

Transversus thoracis muscles

Question 18

arise from the lower ribs near the angles and ascend 2-3 ribs to insert again near the angle of the rib. They are thin slips of muscles deep to the intercostal vessels and nerve and blend with the innermost intercostal muscles. They are more prominent in the lower aspect of the rib cage and assist in pulling the ribs downward.

Answer 18

subcostal muscles

Question 19

name the layers of the pericardial sac from the external to the internal:

Answer 19

Fibrous paricardium; Pariatal paricardium; Visceral paricardium. The pariatal and visceral paricardium together are serous pericardium.

Question 20

Serous-lined space located posterior to the ascending aorta and pulmonary trunk, anterior to the superior vena cava, and superior to the left atrium. As the heart tube folds on itself during development, the transverse sinus marks the separation between the venous end and the arterial end of the heart tube.

Answer 20

Transverse pericardial sinus

Question 21

Serous-lined blind cul-de-sac bordered by the 4 pulmonary veins and the inferior vena cava. The posterior wall of the oblique sinus is the parietal pericardium lining the posterior aspect of the fibrous sac, and the anterior wall of the sinus is the visceral pericardium covering the posterior surface of the heart.

Answer 21

Oblique pericardial sinus

Question 22

anterior descending branch of cervical plexus; arise: C3-C5; enters mediastinum & thorax on route to lung; supplies diaphragm

Answer 22

phrenic nerve

Question 23

drain blood from pericardium; course with phrenic n. & pericardiacophrenic a. lateral to heart; drain into internal thoracic v.

Answer 23

pericardiacophrenic vessels

Question 24

arise: right aortic sinus; runs: coronary sulcus; supplies r. atrium, ventricles/intervent. septum (parts), SA/AV nodes; terminates as PDA

Answer 24

right coronary artery

Question 25

branch of RCA; supplies SA node, part of pulmonary trunk & right atrium; in some cases SA node is supplied by LCA

Answer 25

Sinuatrial artery

Question 26

branch of right coronary a.; near inferior margin of heart; supplies apex & right ventricle of heart

Answer 26

Right marginal artery

Question 27

arise: left aortic sinus; supplies left atrium, part of both ventricles, ant. part of interventricular septum, AV node; br. into LAD & LCX

Answer 27

Left Coronary artery

Question 28

terminal br. of RCA; travels in posterior interventricular groove to apex; supplies both ventricles; may form an anastomosis with LAD

Answer 28

Left anterior descending artery (LAD; anteror interventricular)

Question 29

branch of LCA; supplies left atrium & left ventricle; courses left & then posterior in coronary sulcus to diaphragmatic surface

Answer 29

left circumflex artery (LCX)

Question 30

between left atrium & ventricle (in coronary sulcus); termination of great cardiac v.

Answer 30

Coronary Sinus

Question 31

follows LAD: apex to coronary sulcus; follows LCX; joins coronary sinus; drains ventricles & left atrium via tributaries & left marginal v.

Answer 31

Great cardiac vein

Question 32

begins at apex of heart; follows post. interventricular a. (PDA) in post. interventricular sulcus; drains into coronary sinus

Answer 32

Middle cardiac vein

Question 33

drains blood from regions superior to diaphragm into right atrium

Answer 33

SVC

Question 34

IVC; formed by anastomosis of common iliac v.; courses retroperitoneally; drains abdominal viscera, abdominal walls, perineum, & lower limbs

Answer 34

IVC

Question 35

right upper part of the heart

Answer 35

Right Atrium

Question 36

myocardial wall separating left and right atria; contains fossa ovalis

Answer 36

Interatrial septum

Question 37

depression located in interatrial septum; superior to IVC; remnant of fetal fossa ovale, which shunted blood from right atrium to left atrium

Answer 37

Fossa ovalis

Question 38

between left atrium & ventricle (in coronary sulcus); termination of great cardiac v.

Answer 38

Coronary sinus

Question 39

trabecular cardiac muscle tissue; located on anterior surface of the atria

Answer 39

pectinate muscles

Question 40

the valve between the right atrium and ventricle

Answer 40

Tricuspid valve (right AV valve)

Question 41

the right lower section of the heart

Answer 41

right ventricle

Question 42

wall between the septums

Answer 42

Interventricular septum

Question 43

large, smooth, irregular cardiac muscular elevations of ventricles of heart

Answer 43

Trabeculae carneae

Question 44

attaches ant. papillary m. to inf. interventricular septum; carries part of right bundle br. of conducting system into ant. papillary m.

Answer 44

Septomarginal trabecula (moderator band)

Question 45

Muscles connected to chordae tendineae

Answer 45

Papillary muscles

Question 46

the chords connecting the papillary muscles to the valves

Answer 46

Chordae tendineae

Question 47

site of origin for pulmonary artery; a conical extension serving as outflow part of right ventricle of heart

Answer 47

Conus arteriosus

Question 48

valve between the RV and the pulmonary arteries

Answer 48

Pulmonary valve

Question 49

exits right ventricle; carries deoxygenated blood toward lungs; courses ant., then to left of aorta; splits into right & left pulmonary a.

Answer 49

Pulmonary trunk

Question 50

blood to the lungs

Answer 50

Pulmonary arteries

Question 51

blood from the lungs travels in what?

Answer 51

Pulmonary veins

Question 52

collects blood from the pulmonary veins

Answer 52

Left atrium

Question 53

the wall between the atrium

Answer 53

Interatrial septum

Question 54

rabecular cardiac muscle tissue; located on anterior surface of the atria

Answer 54

Pectinate Muscles

Question 55

valve from the left atrium to ventricle (3 names)

Answer 55

Bicuspid valve (Left AV; Mitral valve)

Question 56

pumps to the body

Answer 56

Left ventrile

Question 57

wall between the ventricles

Answer 57

Interventricuar septum

Question 58

large, smooth, irregular cardiac muscular elevations of ventricles of heart

Answer 58

Trabeculae carneae

Question 59

valve between the left ventricle and the aorta

Answer 59

Aortic valve

Question 60

the artery coming out of the LV

Answer 60

Ascending aorta